1296:
1059:
816:
1078:
129:
1284:
958:
1857:). In the specimens preserving the anterior end of the body, this end is pointed or rounded, bearing a rhynchocoel with the proboscis, which is characteristic for nemerteans. The authors attributed these fossils to nemerteans and interpreted them as the oldest record of the group reported so far. However, Knaust & Desrochers cautioned that partly preserved putative nemertean fossils might ultimately turn out to be fossils of
792:
116:
1060:
1062:
1063:
323:, consisting of about 1300 known species. Most ribbon worms are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies. Many have patterns of yellow, orange, red and green coloration. The foregut, stomach and intestine run a little below the midline of the body, the
2245:
of nemertea are usually in the walls of the fluid vessels and are served by "drains" from which the wastes exit by a small number of tubes through the skin, while the flame cells of flatworms are scattered throughout the body. Rigorous comparisons show no synapomorphies of nemertean and platyhelminth
1114:
Larger species often break up when stimulated, and the fragments often grow into full individuals. Some species fragment routinely and even parts near the tail can grow full bodies. But this kind of extreme regeneration is restricted to only a few types of nemerteans, and is assumed to be a derived
811:
exits from an orifice which is separate from the mouth, coils around the prey and immobilizes it by sticky, toxic secretions. The Anopla can attack as soon as the prey moves into the range of the proboscis. Some Anopla have branched proboscises which can be described as "a mass of sticky spaghetti".
899:
In the simplest type of circulatory system, two lateral vessels are joined at the ends to form a loop. However, many species have additional long-wise and cross-wise vessels. There is no heart nor pumping vessels, and the flow of fluid depends on contraction of both the vessels and the body wall's
787:
is an infolding of the body wall, and sits in the rhynchocoel when inactive. When muscles in the wall of the rhynchocoel compress the fluid inside, the pressure makes the proboscis jump inside-out along a canal called the rhynchodeum and through an orifice, the proboscis pore. The proboscis has a
1025:
organs, sacs whose only openings are to the outside. Others species have unpaired evertible organs on the front of their heads. Some have slits along the side of the head or grooves obliquely across the head, and these may be associated with paired cerebral organs. All of these are thought to be
997:
invertebrates encircle the foregut. Most nemertean species have just one pair of nerve cords, many species have additional paired cords, and some species also have a dorsal cord. In some species the cords lie within the skin, but in most they are deeper, inside the muscle layers. The central
681:, however, is usually only a few millimeters wide. The bodies of most nemerteans can stretch a lot, up to 10 times their resting length in some species, but reduce their length to 50% and increase their width to 300% when disturbed. A few have relatively short but wide bodies, for example
622:
The typical nemertean body is very thin in proportion to its length. The smallest are a few millimeters long, most are less than 20 centimetres (7.9 in), and several exceed 1 metre (3.3 ft). The longest animal ever found, at 54 metres (177 ft) long, may be a specimen of
2200:
believe the
Bdellonemertea are a part of the Monostilifera (with one active stylet), which are within the Hoplonemertea β which implies that "Enopla" and "Hoplonemertea" are synonyms for the same branch of the tree. The Polystilifera (with many tiny stylets) are monophyletic.
839:
barb, with which the animal stabs the prey many times to inject toxins and digestive secretions. The prey is then swallowed whole or, after partial digestion, its tissues are sucked into the mouth. The stylet is attached about one-third of the distance from the end of the
397:
undulations. A few live in the open ocean while the rest find or make hiding places on the bottom. About a dozen species inhabit freshwater, mainly in the tropics and subtropics, and another dozen species live on land in cool, damp places. Most nemerteans are
1578:. Comprises about 400 species. The majority are marine, but three are freshwater. Their body-wall muscles are disposed in four layers, alternately circular and length-wise starting from the outermost layer. The order includes the strongest swimmers. Two
377:
vessels which are joined at the ends to form a loop, and these and the rhynchocoel are filled with fluid. There is no heart, and the flow of fluid depends on contraction of muscles in the vessels and the body wall. To filter out soluble waste products,
900:
muscles. In some species, circulation is intermittent, and fluid ebbs and flows in the long-wise vessels. The fluid in the vessels is usually colorless, but in some species it contains cells that are yellow, orange, green or red. The red type contain
747:
They are unsegmented, but at least one species, Annulonemertes minusculus, is segmented. But this is assumed to be a derived trait. The segmentation does not include the coelom and body wall, and is therefore referred to as pseudosegmentation.
2253:(outer part of the mesoderm, which is the layer in which most of the internal organs are built) is derived from cells labelled 3a and 3b, and endomesoderm (inner part of the mesoderm) is derived from the 4d cell. Some of the ectomesoderm in
1826:
has been classed as a nemertean, based on a resemblance to some unusual deep-sea swimming nemerteans, but few paleontologists accept this classification as the
Burgess Shale fossils show no evidence of rhynchocoel nor intestinal caeca.
2237:. The rhabdites of nemertea have a different structure from those of flatworms at the microscopic scale. The frontal glands or organs of flatworms vary a lot in structure, and similar structures appear in small marine annelids and
1061:
913:
844:
proboscis, which extends only enough to expose the stylet. On either side of the active stylet are sacs containing back-up stylets to replace the active one as the animal grows or an active one is lost. Instead of one stylet, the
1158:
are emitted), one per gonad, are built when the ova and sperm are ready. The eggs are generally fertilised externally. Some species shed them into the water, some lay them in a burrow or tube, and some protect them by
3085:
R. Gibson (1995). "Nemertean genera and species of the world: an annotated checklist of original names and description citations, synonyms, current taxonomic status, habitats and recorded zoogeographic distribution".
732:, but these are not associated with differences in movement. Nemerteans also have dorso-ventral muscles, which flatten the animals, especially in the larger species. Inside the concentric tubes of these layers is
453:, one per gonad, when the ova and sperm are ready. The eggs are generally fertilised externally. Some species shed them into the water, and others protect their eggs in various ways. The fertilized egg divides by
685:
is up to 3.5 centimetres (1.4 in) long and 1 centimetre (0.39 in) wide, and some of these are much less stretchy. Smaller nemerteans are approximately cylindrical, but larger species are flattened
341:
to emerge just above the mouth to capture the animal's prey with venom. A highly extensible muscle in the back of the rhynchocoel pulls the proboscis in when an attack ends. A few species with stubby bodies
940:
which filter out the wastes are embedded in the front part of the two lateral fluid vessels. The flame cells remove the wastes into two collecting ducts, one on either side, and each duct has one or more
1091:
Nemerteans generally move slowly, though they have occasionally been documented to successfully prey on spiders or insects. Most nemerteans use their external cilia to glide on surfaces on a trail of
2838:. While analyses by molecular phylogeny are confident that members of Lophotrochozoa are more closely related to each other than of non-members, the relationships between members are mostly unclear.
896:
in everting the proboscis and in burrowing. The vessels circulate fluid round the whole body and the rhynchocoel provides its own local circulation. The circulatory vessels are a system of coeloms.
1095:, some of which is produced by glands in the head. Larger species use muscular waves to crawl, and some aquatic species swim by dorso-ventral undulations. Some species burrow by means of muscular
849:
have a pad that bears many tiny stylets, and these animals have separate orifices for the proboscis and mouth, unlike other Enopla. The Enopla can only attack after contacting the prey.
4406:
4370:
1886:, may be a nemertean. This fossil, however, only preserves the outline of the "worm", and there is no evidence of a proboscis, so there is no certainty that it represents a nemertean.
1336:-like tubes. Mainly in the tropics and subtropics, about 12 species appear in freshwater, and about a dozen species live on land in cool, damp places, for example under rotting logs.
5180:
2213:
analyses emphasised as shared features: multiciliated (with multiple cilia per cell), glandular epidermis; rod-shaped secretory bodies or rhabdites; frontal glands or organs;
1038:, which can detect light but not form an image. Most nemerteans have two to six ocelli, although some have hundreds. A few tiny species that live between grains of sand have
1793:
As nemerteans are mostly soft-bodied, one would expect fossils of them to be extremely rare. One might expect the stylet of a nemertean to be preserved, since it is made of
477:
larva, in which the developing juvenile has a gut which lies across the larva's body, and usually eats the remains of the larva when it emerges. The bodies of some species
6955:
4277:
4221:
4066:
3938:
3828:
3315:
1512:, and other nemerteans. Nemerteans' skins secrete toxins that deter many predators, but some crabs may clean nemerteans with one claw before eating them. The American
7586:
1258:(developing gut) and coalesce to form the juvenile. When it is fully formed, the juvenile bursts out of the larva body and usually eats it during this catastrophic
2209:
English-language writings have conventionally treated nemerteans as acoelomate bilaterians that are most closely related to flatworms (Platyhelminthes). These pre-
3208:
556:
wrote of a marine worm which was apparently 17.76 metres (58.3 ft) long ("40 cubits"), about the width of a child's arm, and whose touch made a hand swell.
7612:
4579:"Hox genes pattern the anterior-posterior axis of the juvenile but not the larva in a maximally indirect developing invertebrate, Micrura alaskensis (Nemertea)"
2276:
flatworms produce no ectomesoderm. In nemerteans the space between the epidermis and the gut is mainly filled by well-developed muscles embedded in noncellular
2818:
larvae (for example
Annelida and Mollusca); and some other phyla (such as Platyhelminthes, Sipuncula, Gastrotricha, Gnathostomulida, Micrognathozoa, Nemertea,
1375:. It can build a cocoon, which allows it to avoid desiccation while being transported, and it may be able to build populations quickly in new areas as it is a
945:
through which the wastes exit. Semiterrestrial and freshwater nemerteans have many more flame cells than marines, sometimes thousands. The reason may be that
7699:
728:. Next to the dermis are at least three layers of muscles, some circular and some longitudinal. The combinations of muscle types vary between the different
4629:
4877:
Knaust, Dirk; Desrochers, AndrΓ© (2019). "Exceptionally preserved soft-bodied assemblage in
Ordovician carbonates of Anticosti Island, eastern Canada".
880:, and respiration occurs over the surface of the body, which is long and sometimes flattened. Like other animals with thick body walls, they use fluid
751:
The mouth is ventral and a little behind the front of the body. The foregut, stomach and intestine run a little below the midline of the body and the
7560:
7599:
6661:
2978:
639:
in
Scotland. Other estimates are about 30 metres (98 ft). Zoologists find it extremely difficult to measure this species. For comparison:
2184:("armed") are monophyletic, but find that Palaeonemertea is doubly paraphyletic, having given rise to both the Heteronemertea and the Enopla.
1106:, whose proboscis have one active stylet, move by extending the proboscis, sticking it to an object and pulling the animal toward the object.
5013:
4962:
4854:
4528:
4418:
4382:
4353:
4261:
4205:
4174:
4050:
3999:
3963:
3922:
3812:
3770:
3650:
3616:
3569:
3486:
3452:
3386:
3361:
3299:
3128:
2958:
1250:
cap with the ear flaps pulled down. It has a gut which lies across the body, a mouth between the "ear flaps", but no anus. A small number of
3511:"Determining the largest known land animal: A critical comparison of differing methods for restoring the volume and mass of extinct animals"
2149:(trait shared by an ancestor and all its descendants, but not by other groups) include the eversible proboscis located in the rhynchocoel.
5197:
5102:
4302:
892:
is contained in the main body cavity. The fluid in the rhynchocoel moves substances to and from the proboscis, and functions as a fluid
788:
muscle which attaches to the back of the rhynchocoel, can stretch up to 30 times its inactive length and acts to retract the proboscis.
5338:
3406:
1050:, which feeds on polychaetes, can follow the prey's trails of mucus, and find its burrow by backtracking along its own trail of mucus.
5375:
5236:
5044:
4747:
4108:
3157:
4743:
382:
are embedded in the front part of the two lateral fluid vessels, and remove the wastes through a network of pipes to the outside.
7661:
5412:
4842:
1531:
888:
to move substances through their bodies. The circulatory system consists of the rhynchocoel and peripheral vessels, while their
5407:
3760:
1295:
4814:
Knaust, Dirk (2010). "Remarkably preserved benthic organisms and their traces from a middle
Triassic (Muschelkalk) mud flat".
3352:
Walker, J.C.; Anderson, D.T. (1998). "The
Platyhelminthes, Nemertea, Entoprocta and Gnathostomulida". In D.T. Anderson (ed.).
1198:, in which the fate of a cell can usually be predicted from its predecessors in the process of division. The embryos of most
461:, in which the fate of a cell can usually be predicted from its predecessors in the process of division. The embryos of most
508:, as one order of Anopla is more closely related to Enopla than to the other order of Anopla. The phylum Nemertea itself is
7604:
3604:
2974:
1501:
is considered a significant factor in the collapse of the dungeness crab fishery. Other coastal nemerteans have devastated
5491:
5481:
5464:
4091:
244:
3440:
759:, a cavity which mostly runs above the midline and ends a little short of the rear of the body. The rhynchocoel of class
2886:
1622:
and all the hosts steal food from them. These nemerteans have short, wide bodies and have no stylets but have a sucking
687:
478:
394:
3640:
2217:; and acoelomate body organization. However, multiciliated epidermal cells and epidermal gland cells are also found in
1328:
animals. Some live deep in the open oceans, and have gelatinous bodies. Others build semi-permanent burrows lined with
574:, was first used in 1806 by Sowerby. In 1995, a total of 1,149 species had been described and grouped into 250 genera.
7508:
7495:
6654:
3559:
3047:
2145:(meaning that the phylum includes all and only descendants of one ancestor that was also a member of the phylum). The
3541:
4950:
7539:
3476:
3088:
333:, a cavity which mostly runs above the midline and ends a little short of the rear of the body. All species have a
3987:
3953:
1291:. The animal is 1.5 centimetres (0.59 in) long, of which the anterior 1 centimetre (0.39 in) is visible.
7694:
7617:
7552:
6798:
2288:, but a similar structure of body-wall muscles embedded in noncellular connective tissue is widespread among the
1599:. Their mouth is located underneath and ahead of the brain. Their main nerve cords run inside body-wall muscles.
128:
1679:
Recent molecular phylogenetic studies divided the group into two superclasses, three classes, and eight orders:
516:
being the rhynchocoel and eversible proboscis. Traditional taxonomy says that nemerteans are closely related to
4650:
3116:
2794:, which include about half of the extant animal phyla. Lophotrochozoa groups: those animals that feed using a
1555:. Comprises 100 marine species. Their body wall has outer circular and inner length-wise muscles. In addition,
1221:, swimming for some time and eating prey larger than microscopic particles. However, many members of the order
831:, the proboscis exits from a common orifice of the rhynchocoel and mouth. A typical member of this class has a
670:
370:
763:
has an orifice a little to the front of the mouth, but still under the front of the body. In the other class,
1453:, and may kill annelids of about their own size. They sometimes take fish, both living and dead. Insects and
1195:
1034:. Small pits in the epidermis appear to be sensors. On their head, some species have a number of pigment-cup
458:
6883:
5496:
5343:
4922:
1875:
1316:
Most nemerteans are marine animals that burrow in sediments, lurk in crevices between shells, stones or the
4920:
Schram, Frederick R. (September 1973). "Pseudocoelomates and a
Nemertine from the Illinois Pennsylvanian".
3045:
Cedhagen, Tomas; Per
Sundberg (1986). "A previously unrecognized report of a nemertean in the literature".
1508:
The few predators on nemerteans include bottom-feeding fish, some sea birds, a few invertebrates including
7435:
6647:
5368:
4555:
2913:
1546:("unarmed"). Includes animals with proboscis without stylet, and a mouth underneath and behind the brain.
1486:
1271:
1172:
1046:
970:
856:, absorb organic food in solution through their skins, which may make the long, slim bodies an advantage.
796:
7513:
7648:
7111:
6761:
5459:
3153:"Lophotrochozoa internal phylogeny: new insights from an up-to-date analysis of nuclear ribosomal genes"
2165:
1422:
1236:
1069:
993:, masses of nerve cells, positioned round the rhynchocoel near its front end β while the brains of most
474:
2241:
larvae. The protonephridia of nemertea and flatworms are different in structure, and in position β the
815:
3952:
Roe, Pamela; Norenburg, Jon L.; Maslakova, Svetlana (2007). Sol Felty Light; James T. Carlton (eds.).
1770:
1727:
7666:
7627:
7521:
7482:
6776:
5294:
5281:
Cannon, J.T.; Vellutini, B.C.; Smith, J.; Ronquist, F.; Jondelius, U.; Hejnol, A. (4 February 2016).
4886:
4687:
4454:
3011:
1870:
1838:
1514:
1352:
561:
1693:
7689:
2899:
2827:
1774:
1705:
1560:
1325:
1203:
1116:
465:
develop either directly to form juveniles (like the adult but smaller) or larvae that resemble the
1077:
7106:
6788:
5924:
5476:
5454:
5442:
5417:
5318:
4931:
4902:
4796:
4271:
4215:
4060:
3932:
3859:
3822:
3692:
3533:
3309:
3027:
2906:
2173:
1715:
1431:
1393:
1317:
1266:
involved during development, which are only found in the juveniles developing inside the larvae.
978:
881:
857:
631:
625:
570:
485:
358:
284:
123:
7653:
4543:
665:
are estimated at approximately 35 metres (115 ft) and 31 metres (102 ft) respectively.
5172:
7635:
6898:
6346:
6266:
5616:
5486:
5449:
5437:
5427:
5361:
5310:
5263:
5129:
5121:
5071:
5009:
4958:
4850:
4713:
4610:
4524:
4480:
4414:
4378:
4349:
4321:
4298:"The invention of the pilidium larva in an otherwise perfectly good spiralian phylum Nemertea"
4257:
4201:
4170:
4147:
4104:
4046:
3995:
3959:
3918:
3808:
3766:
3741:
3646:
3612:
3565:
3482:
3448:
3382:
3357:
3295:
3227:
3184:
3124:
3064:
2954:
2950:
2942:
2277:
1850:
1794:
1427:
1283:
1147:
1007:
737:
721:
586:
449:), and build temporary gonoducts (ducts from which the ova or sperm are emitted) opening to a
374:
5193:
3673:
Martin, Gary G. (1978). "A new function of rhabdites: mucus production for ciliary gliding".
1536:
Traditional taxonomic classification has divided the group into two classes and four orders:
1368:
7640:
7174:
7053:
6945:
6888:
6828:
6823:
6751:
6736:
5401:
5302:
5253:
5245:
5189:
5111:
5061:
5053:
4894:
4823:
4786:
4703:
4695:
4600:
4590:
4470:
4462:
4311:
4137:
4096:
3868:
3731:
3723:
3684:
3525:
3418:
3217:
3174:
3166:
3097:
3056:
3019:
2361:
1661:
1650:
1611:
1592:
1474:
1405:
1229:
957:
832:
602:
423:
965:. Several clusters of dark eyespots and the opening of one cerebral organ are also visible.
327:
is at the tip of the tail, and the mouth is under the front. A little above the gut is the
7591:
7347:
7252:
7214:
7169:
7101:
6858:
6818:
6803:
6696:
6627:
6533:
6384:
6287:
6144:
5677:
5005:
4999:
4641:
4520:
4514:
4253:
4247:
4197:
4191:
4042:
4036:
3914:
3908:
3804:
3798:
3291:
3285:
2657:
1813:
1802:
1549:
1540:
1372:
1191:
1100:
805:
729:
655:
557:
504:("armed" with a dagger) also with two orders. However, it is now accepted that Anopla are
497:
489:
454:
755:
is at the tip of the tail. Above the gut and separated from the gut by mesenchyme is the
6639:
5298:
5282:
4890:
4751:
4691:
4544:
A phylum-wide survey reveals multiple independent gains of head regeneration in
Nemertea
4458:
3015:
361:
connect to the brain and run along the length of the body. Most nemerteans have various
7547:
7534:
7473:
7407:
7352:
7342:
7184:
6998:
6950:
6863:
6838:
6833:
6813:
6808:
6711:
6701:
6292:
6088:
6000:
5978:
5941:
5432:
5339:
The Marine Biological Laboratory: Phylum Nemertea (Nemertinea, Nemertini, Rhynchocoela)
5258:
5231:
5066:
5039:
4708:
4675:
4605:
4578:
4475:
4442:
3736:
3711:
3179:
3152:
2791:
2787:
2467:
2214:
2177:
2007:
1953:
1920:
1733:
1699:
1687:
1671:. Includes about 100 pelagic and 50 benthic species. Their pads bear many tiny stylets.
1619:
1603:
1596:
1575:
1552:
1509:
1491:
1466:
1413:
1226:
1222:
1218:
1214:
1124:
1031:
946:
925:
861:
791:
690:. Many have visible patterns in various combinations of yellow, orange, red and green.
521:
434:
362:
347:
343:
260:
229:
4441:
Shinobe, Shotaro; Uchida, Shota; Mori, Hideaki; Okochi, Isamu; Chiba, Satoshi (2017).
3955:
The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon
7683:
7131:
7116:
7078:
7003:
6939:
6925:
6873:
6868:
6782:
6771:
6766:
6746:
6741:
6716:
6437:
6341:
5840:
5322:
4906:
4827:
4800:
3696:
3675:
3537:
3414:
3031:
2999:
2874:
2870:
2399:
2193:
2059:
2044:
2037:
1823:
1754:
1748:
1741:
1668:
1657:
1634:
1627:
1481:
1379:
1348:
1259:
1251:
1232:
1103:
1027:
942:
846:
270:
70:
767:, the mouth and the front of the rhynchocoel share an orifice. The rhynchocoel is a
357:, positioned around the rhynchocoel near the animal's front end. At least a pair of
7327:
7322:
7297:
7272:
7262:
7189:
7058:
6932:
6893:
6878:
6853:
6848:
6793:
6726:
6543:
6538:
6426:
6282:
6168:
6054:
5957:
5936:
5806:
5757:
5713:
5694:
2882:
2783:
2672:
2331:
2161:
2146:
2133:
1721:
1401:
1360:
1168:
741:
553:
513:
509:
505:
265:
115:
7487:
5148:
4126:"Building the vertebrate heart - an evolutionary approach to cardiac development"
1522:, both called "tapeworms" in their respective localities, are sold as fish bait.
7573:
7500:
7467:
7382:
7357:
7302:
7277:
7199:
7194:
7159:
7149:
6843:
6756:
6504:
6475:
6461:
6451:
6036:
5852:
5765:
5547:
4791:
4774:
4190:
Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Introduction to Bilateria".
2815:
2799:
2615:
2561:
2425:
2249:
According to more recent analyses, in the development of nemertean embryos, ecto
1879:
1858:
1568:
1388:
1376:
1310:
1301:
1255:
1247:
1240:
1096:
1085:
864:, which have a proboscis but no stylet, and use suckers to attach themselves to
756:
661:
173:
45:
24:
4699:
4466:
3023:
7415:
7377:
7307:
7287:
7282:
7267:
7237:
7209:
7164:
7154:
7126:
7121:
7063:
7038:
6731:
6706:
6601:
6586:
6581:
6562:
6557:
6485:
6432:
6402:
6394:
6336:
6210:
6202:
6185:
5965:
5877:
5830:
5770:
5732:
5706:
5552:
5537:
5348:
4595:
3410:
3101:
2866:
2862:
2842:
2811:
2795:
2407:
2242:
2218:
2210:
1842:
1646:
1450:
1397:
1333:
1176:
1164:
1143:
1120:
999:
994:
986:
937:
933:
917:
901:
836:
772:
733:
717:
705:
644:
636:
541:
533:
411:
399:
379:
209:
90:
55:
7458:
5125:
4898:
3068:
7332:
7312:
7204:
7083:
7018:
7008:
6993:
6988:
6969:
6721:
6567:
6514:
6509:
6480:
6469:
6418:
6413:
6365:
6277:
6270:
6064:
6059:
6021:
5870:
5862:
5791:
5743:
5664:
5651:
5632:
5627:
5586:
4676:"Declining soil Crustacea in a World Heritage Site caused by land nemertean"
4443:"Declining soil Crustacea in a World Heritage Site caused by land nemertean"
4100:
3060:
2854:
2846:
2819:
2807:
2774:
2600:
2546:
2453:
2445:
2437:
2312:
2293:
2238:
2226:
2142:
1834:
1607:
1564:
1470:
1462:
1438:
1409:
1364:
1344:
1039:
1011:
885:
841:
784:
517:
419:
415:
338:
334:
199:
186:
160:
140:
95:
5314:
5267:
5249:
5133:
5116:
5097:
5075:
5057:
4717:
4614:
4484:
4325:
4151:
4124:
PΓ©rez-Pomares, JosΓ© M.; Juan M. GonzΓ‘lez-Rosa; RamΓ³n MuΓ±oz-ChΓ‘puli (2009).
3873:
3854:
3745:
3727:
3510:
3231:
3188:
3170:
524:, a very large clade, sometimes viewed as a superphylum that also includes
433:
In most species the sexes are separate, but all the freshwater species are
4405:
Russell, Peter J.; Wolfe, Stephen L.; Hertz, Paul E.; Cecie Starr (2008).
4369:
Russell, Peter J.; Wolfe, Stephen L.; Hertz, Paul E.; Cecie Starr (2008).
4142:
4125:
3222:
3203:
2292:(animals in which the early cell divisions make a spiral pattern) such as
7452:
7387:
7367:
7337:
7317:
7292:
7257:
7247:
7242:
7073:
7048:
7028:
6688:
6591:
6575:
6498:
6490:
6445:
6408:
6389:
6378:
6360:
6354:
6215:
6132:
6029:
5910:
5799:
5683:
5574:
5565:
5471:
4316:
4297:
4165:
Anderson, D.T. (1998). "The invertebrate phyla". In D.T. Anderson (ed.).
4030:
4028:
4026:
4024:
4022:
4020:
4018:
3529:
2878:
2858:
2823:
2634:
2523:
2507:
2449:
2411:
2289:
2281:
2269:
2266:
2258:
2254:
2250:
2230:
1883:
1818:
1477:
cavity of molluscs and feed on micro-organisms filtered out by the host.
1454:
1306:
1263:
1022:
1015:
929:
893:
709:
651:
470:
450:
346:
and have suckers at the front and back ends, with which they attach to a
219:
85:
80:
65:
60:
50:
20:
5306:
800:, a species within class Anopla, discharges a sticky branched proboscis.
7392:
7372:
7068:
7043:
7033:
7023:
6979:
6916:
6551:
6527:
6519:
6456:
6370:
6190:
6177:
6110:
6101:
6046:
5971:
4935:
3688:
2850:
2803:
2483:
2297:
2285:
2262:
2222:
1862:
1806:
1642:
1638:
1623:
1442:
1417:
1207:
1135:
990:
865:
694:
537:
529:
525:
466:
427:
403:
354:
100:
75:
5353:
2280:. This structure is similar to that found in larger flatworms such as
1426:
has been implicated in the decline of native arthropod species on the
912:
7578:
7232:
7224:
7093:
6596:
6330:
5620:
5530:
5517:
5388:
5385:
3204:"Hox and ParaHox genes in Nemertodermatida, a basal bilaterian clade"
2790:
and perhaps Sipuncula) and Mollusca make the ribbon-worms members of
2346:
2181:
2169:
1984:
1854:
1846:
1588:
1543:
1469:("smell") and are not selective about their prey. A few species live
1356:
1187:
1180:
1139:
1035:
1003:
904:
and carry oxygen, but the function of the other pigments is unknown.
828:
808:
768:
764:
760:
725:
606:
582:
501:
496:("unarmed" β their proboscises do not have a little dagger) with two
493:
446:
393:, while larger species use muscular waves to crawl, and some swim by
366:
312:
308:
274:
150:
7429:
1645:
sea water, in freshwater and on land. They feed by commensalism and
1490:
has consumed about 55% of the total egg production of its host, the
981:
that connect to the brain and run along the length of the body. The
481:
readily, and even parts cut off near the tail can grow full bodies.
4348:. Philadelphia, PA: Holt-Saunders International. pp. 252β262.
2885:, which are neither protostomes nor deuterostomes, are regarded as
1664:. Some use the stylet for locomotion as well as for capturing prey.
7565:
7141:
7013:
2273:
2234:
2189:
1579:
1383:
1329:
1321:
1294:
1282:
1243:
1210:
1155:
1131:
1092:
1076:
1057:
982:
974:
911:
889:
877:
814:
790:
713:
702:
698:
578:
462:
442:
438:
390:
386:
4634:(Dakin) in Hawaii (Nemertinea: Hoplonemertinea: Prosorhochmidae)"
3356:(1 ed.). Oxford University Press Australia. pp. 79β85.
7179:
6671:
1615:
1502:
1446:
1288:
1199:
1160:
1151:
752:
716:
in which the cilia glide. Each ciliated cell has many cilia and
605:
are a separate phylum, whose closest relatives appear to be the
407:
324:
7433:
6643:
5649:
5357:
5040:"Ribbon worm relationships: A phylogeny of the phylum Nemertea"
4508:
4506:
4504:
4502:
4500:
4498:
4496:
4494:
4246:
Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Nemertea".
4035:
Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Nemertea".
3907:
Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Nemertea".
3797:
Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Nemertea".
3284:
Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Nemertea".
3000:"A poisonous shield, a potent venom: These worms mean business"
369:, which can detect light but can not form an image. Nemerteans
365:, and on their heads some species have a number of pigment-cup
4845:. In PΓ‘lyi, Gyula; Caglioti, Luciano; Zucchi, Claudia (eds.).
3994:(2 ed.). University of California Press. pp. 55β58.
3712:"Annulonemertes (Phylum Nemertea): When segments do not count"
3347:
3345:
2835:
2831:
635:
54 metres (177 ft) long, washed ashore after a storm off
7526:
4577:
Hiebert, Laurel S.; Maslakova, Svetlana A. (April 11, 2015).
3343:
3341:
3339:
3337:
3335:
3333:
3331:
3329:
3327:
3325:
1275:
has been reported as having a life span of around 18 months.
4998:
Ruppert, E.E.; Fox, R.S.; Barnes, R.D. (2004b). "Nemertea".
4843:"Evolutionary origin of asymmetry in early metazoan animals"
4674:
Shinobe, S; Uchida, S; Mori, H; Okochi, I; Chiba, S (2017).
4169:(1 ed.). Oxford University Press Australia. p. 4.
3792:
3790:
3788:
3786:
3784:
3782:
1073:(right) being inspected by a spider, which it then captures.
3279:
3277:
3275:
3273:
3271:
3269:
3267:
3265:
3263:
3261:
3202:
Jimenez-Guri E, Paps J, Garcia-Fernandez J, Salo E (2006).
2265:
is derived from cells 3a and 3b, while the ectomesoderm of
1123:(the sexes are separate), but all the freshwater forms are
564:
wrote a formal description of this animal, which he called
5232:"Assembling the lophotrochozoan (=spiralian) tree of life"
5098:"Progress in nemertean biology: Development and phylogeny"
5033:
5031:
5029:
5027:
5025:
4513:
Ruppert, E.E; Fox, R.S.; Barnes, R.D. (2004). "Nemertea".
3855:"Food, feeding behavior and feeding ecology of nemerteans"
3611:(2 ed.). Cambridge University Press. pp. 75β84.
3259:
3257:
3255:
3253:
3251:
3249:
3247:
3245:
3243:
3241:
1457:
are the only known prey of the two terrestrial species of
4957:(2 ed.). Oxford University Press. pp. 281β282.
4291:
4289:
4287:
3639:
Haderlie, Eugene Clinton (1980). Robert H. Morris (ed.).
2782:
Nemerteans' affinities with Annelida (including Echiura,
819:
Stylet-containing part of proboscis of "armed" nemertean
4955:
Animal Evolution: Interrelationships of the living phyla
3992:
Intertidal Invertebrates of the Central California Coast
2168:(contains the ancestors of the more recent clades). The
998:
nervous-system is often red or pink because it contains
5038:
Thollesson, Mikael; Norenburg, Jon L. (February 2003).
4241:
4239:
4237:
4235:
4233:
4231:
3407:"Phylum Nemertea (Nemertinea, Nemertini, Rhynchocoela)"
5166:
5164:
5162:
5160:
3759:
Giribet, Gonzalo; Edgecombe, Gregory D. (2020-03-03).
3447:. Marshall Cavendish Corporation. 2004. p. 1420.
2814:); phyla in which most members' embryos develop into
1213:. The planuliform larva stage may be short-lived and
5181:
Annual Review of Ecology, Evolution, and Systematics
3958:. University of California Press. pp. 221β233.
3598:
3596:
3594:
3592:
3590:
3588:
7442:
7405:
7223:
7140:
7092:
6977:
6968:
6915:
6687:
6320:
6201:
6176:
6167:
6143:
6121:
6086:
6045:
6020:
6013:
5998:
5950:
5923:
5908:
5861:
5839:
5819:
5790:
5783:
5756:
5741:
5730:
5693:
5662:
5585:
5546:
5515:
4993:
4991:
4989:
4987:
4985:
4983:
4981:
4377:. Vol. 3. Cengage Learning. pp. 894β895.
3902:
3900:
3898:
3896:
3894:
3892:
3890:
3888:
3886:
3884:
3848:
3846:
3844:
3842:
3840:
3838:
2197:
2157:
1626:and a posterior stucker, with which they move like
1262:. This larval stage is unique in that there are no
1142:), forming a row down each side of the body in the
5283:"Xenacoelomorpha is the sister group to Nephrozoa"
4775:"An updated classification of the phylum Nemertea"
4130:The International Journal of Developmental Biology
3417:: The Marine Biological Laboratory. Archived from
1559:has circular and inner length-wise muscles in the
5091:
5089:
5087:
5085:
2185:
2153:
2121:
1618:and one in that of a freshwater snail. The hosts
1099:, and have powerful muscles. Some species of the
1006:for peak activity or when the animal experiences
589:. Alternative names for the phylum have included
385:All nemerteans move slowly, using their external
6956:Archaeal Richmond Mine acidophilic nanoorganisms
5147:Ruppert, E.E.; Fox, R.S.; Barnes, R.D. (2004a).
4742:Ben Waggoner; Allen G. Collins (June 13, 2001).
2845:phyla outside the Lophotrochozoa are members of
1830:
1773:(provisionally has been separated its own class
1563:; the extra muscle layers seem to be needed for
1217:("yolky") before becoming a juvenile, or may be
560:wrote in 1758 of a "sea long worm", and in 1770
520:, but both phyla are regarded as members of the
337:which lies in the rhynchocoel when inactive but
2943:"Nemertini, Rhynchocoela, Nemertea, Nemertinea"
1801:reported nemertean fossils and traces from the
1606:. Includes seven species, of which six live as
812:The animal then draws its prey into its mouth.
744:species this tissue is gelatinous and buoyant.
5225:
5223:
5221:
5219:
4413:. Vol. 3. Cengage Learning. p. 889.
4089:Moore, Janet; Gibson, Ray (2001). "Nemertea".
3209:International Journal of Developmental Biology
2176:of nemerteans without stylets (comprising the
2141:There is no doubt that the phylum Nemertea is
949:is more difficult in non-marine environments.
928:to excrete soluble waste products, especially
860:is found only among the specialized symbiotic
6655:
5369:
3645:. Stanford University Press. pp. 85β90.
1797:, but no fossil stylets have yet been found.
1660:. Includes 500 species with a single central
107:Possible Ordovician and Carboniferous records
19:Not to be confused with the roundworm phylum
8:
4276:: CS1 maint: multiple names: authors list (
4220:: CS1 maint: multiple names: authors list (
4065:: CS1 maint: multiple names: authors list (
3937:: CS1 maint: multiple names: authors list (
3827:: CS1 maint: multiple names: authors list (
3564:. Sterling Publishing Company. p. 241.
3400:
3398:
3314:: CS1 maint: multiple names: authors list (
4737:
4735:
4733:
4731:
4729:
4727:
3445:Encyclopedia of the Aquatic World: Starfish
720:. The outermost layer rests on a thickened
437:. Nemerteans often have numerous temporary
7430:
6974:
6912:
6684:
6680:
6662:
6648:
6640:
6317:
6173:
6149:
6125:
6094:
6017:
6010:
6006:
5929:
5920:
5916:
5845:
5823:
5816:
5787:
5753:
5749:
5738:
5727:
5699:
5670:
5659:
5646:
5558:
5523:
5512:
5376:
5362:
5354:
3151:Paps J, BaguΓ±Γ J, Riutort M (April 2009).
2156:treat the Palaeonemertea as monophyletic,
1841:occurring on bedding planes from the Late
1030:, and the cerebral organs may also aiding
114:
31:
5257:
5115:
5065:
4790:
4707:
4628:Howarth, Francis G.; Janet Moore (1983).
4604:
4594:
4474:
4315:
4141:
3872:
3735:
3221:
3178:
1465:, and these generally have good distance
1130:Nemerteans often have numerous temporary
961:Brain and neural cords of hoplonemertean
668:A specimen of the Arctic giant jellyfish
373:through the skin. They have at least two
5714:Hemichordata (acorn worms and relatives)
5194:10.1146/annurev.ecolsys.35.112202.130124
4084:
4082:
4080:
4078:
4076:
3080:
3078:
1246:and which Maslakova describes as like a
1206:(like the adult but smaller) or to form
956:
3481:. New Holland Publishers. p. 155.
2979:Integrated Taxonomic Information System
2936:
2934:
2930:
2830:, which compares sections of organisms
693:The outermost layer of the body has no
577:Nemertea are named after the Greek sea-
5708:Echinodermata (starfish and relatives)
5678:Xenacoelomorpha (acoels and relatives)
5004:(7 ed.). Brooks / Cole. pp.
4519:(7 ed.). Brooks / Cole. pp.
4269:
4213:
4196:(7 ed.). Brooks / Cole. pp.
4058:
4041:(7 ed.). Brooks / Cole. pp.
3930:
3820:
3803:(7 ed.). Brooks / Cole. pp.
3642:Intertidal invertebrates of California
3603:Moore, Janet; Overhill, Raith (2006).
3307:
3290:(7 ed.). Brooks / Cole. pp.
1798:
1637:. Comprises 650 species. They live in
4339:
4337:
4335:
4252:(7 ed.). Brooks / Cole. p.
3913:(7 ed.). Brooks / Cole. p.
3115:Barnes, Richard Stephen Kent (2001).
629:, Ruppert, Fox and Barnes refer to a
16:Phylum of invertebrates, ribbon worms
7:
7628:4ae44a8d-3859-44a0-8020-99cfc2d756ef
7553:ca66e90b-59e2-4a2e-9cb4-33ebd19bedfd
5979:Acanthocephala (thorny-headed worms)
4296:Maslakova, Svetlana A. (July 2010).
3609:An Introduction to the Invertebrates
3381:. Guinness Publishing. p. 232.
7700:Extant Ordovician first appearances
5103:Integrative and Comparative Biology
4303:Integrative and Comparative Biology
3379:The Guinness Book of Animal Records
3123:. Wiley-Blackwell. pp. 81β83.
2773:Relationships of Nemertea to other
2649:
2641:
2630:
2538:
2499:
2474:
2432:
2394:
2338:
2327:
2319:
2307:
2132:highlights the "Anopla", which are
2032:
1999:
1991:
1979:
1943:
1936:
1910:
1898:
674:was 36.5 metres (120 ft) long.
389:to glide on surfaces on a trail of
5576:Cnidaria (jellyfish and relatives)
5349:Video of a Nemertea in Puget Sound
5237:Proceedings of the Royal Society B
5173:"The new view of animal phylogeny"
5045:Proceedings of the Royal Society B
4748:University of California, Berkeley
3853:McDermott, J.; Pamela Roe (1985).
3158:Proceedings of the Royal Society B
1287:A terrestrial nemertean from West
872:Respiration and circulatory system
581:Nemertes, one of the daughters of
14:
3710:Sundberg, P.; Strand, M. (2007).
2198:Thollesson & Norenburg (2003)
2186:Ruppert, Fox & Barnes (2004a)
2180:and the Palaeonemerteans), while
2158:Thollesson & Norenburg (2003)
2154:Ruppert, Fox & Barnes (2004a)
2122:Ruppert, Fox & Barnes (2004a)
647:was 33.58 metres (110.2 ft).
618:Body structure and major cavities
414:. Some species of nemerteans are
6620:Phyla with β₯1000 extant species
5203:from the original on 2022-10-10.
5171:Halanych, K.M. (December 2004).
4828:10.1111/j.1502-3931.2009.00196.x
3988:"Phylum Nemertea (Rhynchocoela)"
3547:from the original on 2022-10-10.
3478:Whales and Dolphins of the World
2826:). These groupings are based on
2272:is derived from the 2b cell and
1532:List of bilaterial animal orders
1202:develop either directly to form
916:A schematic representation of a
127:
23:. For the Romanian village, see
5230:Giribet, Gonzalo (April 2008).
4744:"Introduction to the Nemertini"
4558:. Merriam-Webster, Incorporated
4556:"Gonoduct β Medical Definition"
2947:Concise Encyclopedia of Biology
1837:organisms with a wide range of
936:. In nemertean protonephridia,
920:and other associated structures
5807:Nematomorpha (horsehair worms)
3765:. Princeton University Press.
3121:The Invertebrates: a Synthesis
2949:. Walter de Gruyter. pp.
2205:Relationships with other phyla
2188:treat the Bdellonemertea as a
1831:Knaust & Desrochers (2019)
1:
4092:Encyclopedia of Life Sciences
3762:The Invertebrate Tree of Life
3518:Annals of the Carnegie Museum
2510:(and phyla merged into them)
6419:Echinozoans inc. sea urchins
5153:(7 ed.). Brooks / Cole.
4649:(2): 141β144. Archived from
4411:Biology: the dynamic science
4375:Biology: the dynamic science
1190:(fertilised egg) divides by
876:Nemerteans lack specialized
353:The brain is a ring of four
6476:Chelicerates inc. arachnids
6216:Phoronida (horseshoe worms)
6031:Platyhelminthes (flatworms)
5942:Gnathostomulida (jaw worms)
5831:Loricifera (corset animals)
4792:10.15298/invertzool.18.3.01
4407:"Photoreceptors and vision"
4371:"Photoreceptors and vision"
3607:. In Raith Overhill (ed.).
3048:Archives of Natural History
2120:Groups within Nemertea, by
1868:It has been suggested that
1305:sp. on a rotting log, from
1110:Reproduction and life-cycle
924:Nemertea use organs called
7716:
6366:Medusozoans inc. jellyfish
6112:Annelida (segmented worms)
5937:Chaetognatha (arrow worms)
5853:Onychophora (velvet worms)
4700:10.1038/s41598-017-12653-4
4467:10.1038/s41598-017-12653-4
4344:Barnes, Robert D. (1982).
3089:Journal of Natural History
3024:10.1038/d41586-022-01484-7
1582:have branched proboscises.
1529:
1408:in the South Atlantic, in
1347:but has been found in the
488:divides the phylum in two
18:
6911:
6683:
6679:
6674:phyla/divisions by domain
6616:
6414:Asterozoans inc. starfish
6316:
6309:
6260:
6211:Brachiopoda (lamp shells)
6192:Ectoprocta (moss animals)
6152:
6128:
6097:
6037:Gastrotricha (hairybacks)
6009:
5932:
5919:
5848:
5826:
5815:
5766:Kinorhyncha (mud dragons)
5752:
5726:
5702:
5673:
5658:
5645:
5610:
5561:
5538:Ctenophora (comb jellies)
5526:
5511:
5395:
5096:Turbeville, J.M. (2002).
4866:– via Google books.
4849:. Elsevier. p. 165.
4773:Chernyshev, A.V. (2021).
4596:10.1186/s12915-015-0133-5
3986:Light, Sol Felty (1974).
3558:Carwardine, Mark (2008).
3509:Paul, Gregory S. (2019).
3377:Carwardine, Mark (1995).
3102:10.1080/00222939500770161
2694:
2670:
2655:
2647:
2639:
2628:
2613:
2598:
2583:
2559:
2544:
2536:
2521:
2505:
2497:
2480:
2472:
2442:
2430:
2404:
2392:
2359:
2344:
2336:
2325:
2317:
2172:("unarmed") represent an
2057:
2042:
2030:
2004:
1997:
1989:
1977:
1949:
1941:
1934:
1916:
1908:
1757:(includes Bdellonemertea)
1239:larva, which can capture
1021:Some species have paired
953:Nervous-system and senses
852:Some nemerteans, such as
291:
283:
257:
252:
124:Scientific classification
122:
113:
34:
5972:Rotifera (wheel animals)
5771:Priapulida (penis worms)
4899:10.1016/j.gr.2019.01.016
4847:Advances in BioChirality
4095:. John Wiley & Son.
1882:in northern and central
1683:Superclass Pronemertea
1520:Polybrachiorhynchus dayi
1175:, and some of these are
1171:(deep sea) species have
932:by-products of cellular
671:Cyanea capillata arctica
6884:Thermodesulfobacteriota
6186:Entoprocta or Kamptozoa
6158:Nemertea (ribbon worms)
5879:Tardigrada (waterbears)
5872:Arthropoda (arthropods)
4949:Nielsen, Claus (2001).
4923:Journal of Paleontology
4101:10.1038/npg.els.0001586
3475:Simmonds, Mark (2007).
3061:10.3366/anh.1986.13.1.7
2822:, Platyhelminthes, and
1461:. A few nemerteans are
1396:but has species in the
1279:Ecological significance
1196:determinate development
1119:, and most species are
1042:, which sense balance.
473:. However, some form a
459:determinate development
6361:Anthozoans inc. corals
6060:Dicyemida or Rhombozoa
5250:10.1098/rstb.2007.2241
5058:10.1098/rspb.2002.2254
4136:(8β9β10): 1427β1443 .
3728:10.1098/rsbl.2007.0306
3605:"Chapter 7 β Nemertea"
3171:10.1098/rspb.2008.1574
2941:Scott, Thomas (1996).
2914:Parborlasia corrugatus
1518:and the South African
1487:Carcinonemertes errans
1382:. Another terrestrial
1313:
1292:
1272:Paranemertes peregrina
1183:in the female's body.
1173:internal fertilization
1150:(ducts from which the
1088:
1074:
1047:Paranemertes peregrina
971:central nervous-system
966:
921:
824:
801:
797:Gorgonorhynchus repens
41:Middle Triassicβrecent
7649:Paleobiology Database
7112:Neocallimastigomycota
6491:Hexapods inc. insects
5801:Nematoda (roundworms)
4143:10.1387/ijdb.072409jp
3223:10.1387/ijdb.062167ej
2233:, Mollusca and other
1649:, and are armed with
1495:Metacarcinus magister
1423:Geonemertes pelaensis
1392:, is mostly found in
1298:
1286:
1254:form, encircling the
1080:
1070:Geonemertes pelaensis
1066:
960:
915:
827:In most of the class
818:
804:The proboscis of the
794:
779:Proboscis and feeding
643:The longest recorded
7548:Fauna Europaea (new)
6777:Coprothermobacterota
5684:Chordata (chordates)
5150:Invertebrate Zoology
5117:10.1093/icb/42.3.692
5001:Invertebrate Zoology
4841:Dzik, Jerzy (1999).
4779:Invertebrate Zoology
4630:"The land nemertine
4516:Invertebrate Zoology
4346:Invertebrate Zoology
4249:Invertebrate Zoology
4193:Invertebrate Zoology
4167:Invertebrate Zoology
4038:Invertebrate Zoology
3910:Invertebrate Zoology
3874:10.1093/icb/25.1.113
3800:Invertebrate Zoology
3530:10.2992/007.085.0403
3354:Invertebrate Zoology
3287:Invertebrate Zoology
1833:reported fossils of
1784:Evolutionary history
1591:("armed"). All have
1557:Carinoma tremaphoros
1515:Cerebratulus lacteus
1420:and in the Azores.
1400:, widely across the
1010:, for example while
963:Amphiporus ochraceus
821:Amphiporus ochraceus
771:, as it is lined by
697:, but consists of a
568:. Its current name,
6134:Mollusca (molluscs)
5619:of the animal root
5307:10.1038/nature16520
5299:2016Natur.530...89C
5244:(1496): 1513β1522.
4891:2019GondR..71..117K
4754:on 10 December 2010
4692:2017NatSR...712400S
4632:Argonemertes dendyi
4459:2017NatSR...712400S
3441:"King of the Worms"
3016:2022Natur.606R.230.
3010:(7913): 230. 2022.
2900:Emplectonema neesii
2828:molecular phylogeny
2696:(other Platyzoans)
2300:and many annelids.
1341:Argonemertes dendyi
979:ventral nerve cords
683:Malacobdella grossa
359:ventral nerve cords
7107:Blastocladiomycota
6347:Calcareous sponges
5532:Porifera (sponges)
4951:"Phylum Nemertini"
4680:Scientific Reports
4447:Scientific Reports
4317:10.1093/icb/icq096
3860:American Zoologist
3689:10.1007/BF00999813
2907:Lineus longissimus
2853:"), which include
2192:separate from the
2174:evolutionary grade
1878:-age animals from
1314:
1293:
1117:reproduce sexually
1089:
1082:Lineus longissimus
1075:
967:
922:
858:Suspension feeding
825:
802:
632:Lineus longissimus
626:Lineus longissimus
571:Lineus longissimus
566:Ascaris longissima
7677:
7676:
7636:Open Tree of Life
7436:Taxon identifiers
7427:
7426:
7423:
7422:
7401:
7400:
6964:
6963:
6907:
6906:
6899:Verrucomicrobiota
6637:
6636:
6612:
6611:
6305:
6304:
6301:
6300:
6256:
6255:
6252:
6251:
6248:
6247:
6244:
6243:
6240:
6239:
6236:
6235:
6232:
6231:
6228:
6227:
6224:
6223:
6082:
6081:
6078:
6077:
5994:
5993:
5990:
5989:
5904:
5903:
5900:
5899:
5896:
5895:
5892:
5891:
5888:
5887:
5779:
5778:
5722:
5721:
5641:
5640:
5606:
5605:
5602:
5601:
5344:Nemertea LifeDesk
5052:(1513): 407β415.
5015:978-0-03-025982-1
4964:978-0-19-850681-2
4879:Gondwana Research
4856:978-0-08-043404-9
4530:978-0-03-025982-1
4420:978-0-495-01034-0
4384:978-0-495-01034-0
4355:978-0-03-056747-6
4263:978-0-03-025982-1
4207:978-0-03-025982-1
4176:978-0-19-553941-7
4052:978-0-03-025982-1
4001:978-0-520-00750-5
3965:978-0-520-23939-5
3924:978-0-03-025982-1
3814:978-0-03-025982-1
3772:978-0-691-19706-7
3652:978-0-8047-1045-9
3618:978-0-521-85736-9
3571:978-1-4027-5623-8
3488:978-1-84537-820-2
3454:978-0-7614-7418-0
3388:978-0-85112-658-6
3363:978-0-19-553941-7
3301:978-0-03-025982-1
3165:(1660): 1245β54.
3130:978-0-632-04761-1
2960:978-3-11-010661-9
2869:phyla are in the
2768:
2767:
2759:
2758:
2750:
2749:
2741:
2740:
2732:
2731:
2723:
2722:
2714:
2713:
2705:
2704:
2683:
2682:
2572:
2571:
2381:
2380:
2372:
2371:
2278:connective tissue
2115:
2114:
2106:
2105:
2097:
2096:
2088:
2087:
2079:
2078:
2070:
2069:
2019:
2018:
1966:
1965:
1851:VaurΓ©al Formation
1795:calcium phosphate
1428:Ogasawara Islands
1064:
738:connective tissue
722:basement membrane
712:, which form the
418:, and a few live
302:
301:
248:
108:
7707:
7695:Protostome phyla
7670:
7669:
7657:
7656:
7644:
7643:
7631:
7630:
7621:
7620:
7608:
7607:
7595:
7594:
7582:
7581:
7569:
7568:
7556:
7555:
7543:
7542:
7530:
7529:
7517:
7516:
7504:
7503:
7491:
7490:
7478:
7477:
7476:
7463:
7462:
7461:
7431:
7175:Anthocerotophyta
7054:Hemimastigophora
6975:
6946:Nitrososphaerota
6913:
6889:Thermomicrobiota
6829:Kiritimatiellota
6824:Ignavibacteriota
6789:Deferribacterota
6752:Campylobacterota
6737:Bdellovibrionota
6685:
6681:
6664:
6657:
6650:
6641:
6318:
6274:
6174:
6150:
6126:
6095:
6091:
6018:
6011:
6007:
6003:
5930:
5921:
5917:
5913:
5846:
5824:
5817:
5788:
5754:
5750:
5746:
5739:
5735:
5728:
5700:
5671:
5667:
5660:
5647:
5624:
5559:
5524:
5520:
5513:
5424:
5404:
5378:
5371:
5364:
5355:
5327:
5326:
5278:
5272:
5271:
5261:
5227:
5214:
5211:
5205:
5204:
5202:
5177:
5168:
5155:
5154:
5144:
5138:
5137:
5119:
5093:
5080:
5079:
5069:
5035:
5020:
5019:
4995:
4976:
4975:
4973:
4971:
4946:
4940:
4939:
4917:
4911:
4910:
4874:
4868:
4867:
4865:
4863:
4838:
4832:
4831:
4811:
4805:
4804:
4794:
4770:
4764:
4763:
4761:
4759:
4750:. Archived from
4739:
4722:
4721:
4711:
4671:
4665:
4664:
4662:
4661:
4655:
4638:
4625:
4619:
4618:
4608:
4598:
4574:
4568:
4567:
4565:
4563:
4552:
4546:
4541:
4535:
4534:
4510:
4489:
4488:
4478:
4438:
4432:
4431:
4429:
4427:
4402:
4396:
4395:
4393:
4391:
4366:
4360:
4359:
4341:
4330:
4329:
4319:
4293:
4282:
4281:
4275:
4267:
4243:
4226:
4225:
4219:
4211:
4187:
4181:
4180:
4162:
4156:
4155:
4145:
4121:
4115:
4114:
4086:
4071:
4070:
4064:
4056:
4032:
4013:
4012:
4010:
4008:
3983:
3977:
3976:
3974:
3972:
3949:
3943:
3942:
3936:
3928:
3904:
3879:
3878:
3876:
3850:
3833:
3832:
3826:
3818:
3794:
3777:
3776:
3756:
3750:
3749:
3739:
3707:
3701:
3700:
3670:
3664:
3663:
3661:
3659:
3636:
3630:
3629:
3627:
3625:
3600:
3583:
3582:
3580:
3578:
3555:
3549:
3548:
3546:
3515:
3506:
3500:
3499:
3497:
3495:
3472:
3466:
3465:
3463:
3461:
3437:
3431:
3430:
3428:
3426:
3402:
3393:
3392:
3374:
3368:
3367:
3349:
3320:
3319:
3313:
3305:
3281:
3236:
3235:
3225:
3199:
3193:
3192:
3182:
3148:
3142:
3141:
3139:
3137:
3112:
3106:
3105:
3082:
3073:
3072:
3042:
3036:
3035:
2996:
2990:
2989:
2987:
2985:
2971:
2965:
2964:
2938:
2873:, which include
2650:
2642:
2631:
2539:
2500:
2475:
2433:
2395:
2362:Nemertodermatida
2339:
2328:
2320:
2308:
2131:
2129:
2033:
2000:
1992:
1980:
1957:
1944:
1937:
1923:
1911:
1899:
1771:Arhynchonemertea
1728:Hubrechtiiformes
1406:Tristan da Cunha
1373:Island of Hawaii
1339:The terrestrial
1179:, growing their
1065:
862:bdellonemerteans
603:Nemertodermatida
332:
331:
243:
132:
131:
118:
106:
105:
42:
38:Temporal range:
32:
7715:
7714:
7710:
7709:
7708:
7706:
7705:
7704:
7680:
7679:
7678:
7673:
7665:
7660:
7652:
7647:
7639:
7634:
7626:
7624:
7616:
7611:
7603:
7598:
7590:
7585:
7577:
7572:
7564:
7559:
7551:
7546:
7538:
7533:
7525:
7520:
7512:
7507:
7499:
7494:
7486:
7481:
7472:
7471:
7466:
7457:
7456:
7451:
7438:
7428:
7419:
7397:
7348:Gnathostomulida
7253:Xenacoelomorpha
7219:
7215:Flowering plant
7170:Marchantiophyta
7136:
7102:Chytridiomycota
7088:
6960:
6903:
6859:Planctomycetota
6819:Gemmatimonadota
6804:Elusimicrobiota
6697:Acidobacteriota
6675:
6668:
6638:
6633:
6608:
6534:Phylactolaemata
6322:
6312:
6311:
6297:
6288:Xenambulacraria
6264:
6220:
6197:
6163:
6145:Kryptotrochozoa
6139:
6117:
6087:
6074:
6065:Monoblastozoa (
6041:
5999:
5986:
5958:Micrognathozoa
5946:
5909:
5884:
5857:
5835:
5811:
5775:
5742:
5731:
5718:
5689:
5663:
5654:
5637:
5614:
5598:
5581:
5550:
5542:
5516:
5507:
5506:
5422:
5400:
5391:
5382:
5335:
5330:
5293:(7588): 89β93.
5280:
5279:
5275:
5229:
5228:
5217:
5212:
5208:
5200:
5175:
5170:
5169:
5158:
5146:
5145:
5141:
5095:
5094:
5083:
5037:
5036:
5023:
5016:
4997:
4996:
4979:
4969:
4967:
4965:
4948:
4947:
4943:
4919:
4918:
4914:
4876:
4875:
4871:
4861:
4859:
4857:
4840:
4839:
4835:
4813:
4812:
4808:
4772:
4771:
4767:
4757:
4755:
4741:
4740:
4725:
4673:
4672:
4668:
4659:
4657:
4653:
4642:Pacific Science
4636:
4627:
4626:
4622:
4576:
4575:
4571:
4561:
4559:
4554:
4553:
4549:
4542:
4538:
4531:
4512:
4511:
4492:
4440:
4439:
4435:
4425:
4423:
4421:
4404:
4403:
4399:
4389:
4387:
4385:
4368:
4367:
4363:
4356:
4343:
4342:
4333:
4295:
4294:
4285:
4268:
4264:
4245:
4244:
4229:
4212:
4208:
4189:
4188:
4184:
4177:
4164:
4163:
4159:
4123:
4122:
4118:
4111:
4088:
4087:
4074:
4057:
4053:
4034:
4033:
4016:
4006:
4004:
4002:
3985:
3984:
3980:
3970:
3968:
3966:
3951:
3950:
3946:
3929:
3925:
3906:
3905:
3882:
3852:
3851:
3836:
3819:
3815:
3796:
3795:
3780:
3773:
3758:
3757:
3753:
3716:Biology Letters
3709:
3708:
3704:
3672:
3671:
3667:
3657:
3655:
3653:
3638:
3637:
3633:
3623:
3621:
3619:
3602:
3601:
3586:
3576:
3574:
3572:
3557:
3556:
3552:
3544:
3513:
3508:
3507:
3503:
3493:
3491:
3489:
3474:
3473:
3469:
3459:
3457:
3455:
3439:
3438:
3434:
3424:
3422:
3404:
3403:
3396:
3389:
3376:
3375:
3371:
3364:
3351:
3350:
3323:
3306:
3302:
3283:
3282:
3239:
3201:
3200:
3196:
3150:
3149:
3145:
3135:
3133:
3131:
3114:
3113:
3109:
3084:
3083:
3076:
3044:
3043:
3039:
2998:
2997:
2993:
2983:
2981:
2973:
2972:
2968:
2961:
2940:
2939:
2932:
2928:
2923:
2895:
2849:("animals that
2780:
2779:
2778:
2771:
2770:
2769:
2760:
2751:
2742:
2733:
2724:
2715:
2706:
2684:
2658:Platyhelminthes
2573:
2382:
2373:
2207:
2160:regard them as
2139:
2138:
2137:
2127:
2126:
2125:
2118:
2117:
2116:
2107:
2098:
2089:
2080:
2071:
2020:
1967:
1951:
1918:
1892:
1890:Within Nemertea
1871:Archisymplectes
1814:Middle Cambrian
1803:Middle Triassic
1791:
1786:
1534:
1528:
1510:horseshoe crabs
1430:, where it was
1343:is a native of
1281:
1227:palaeonemertean
1192:spiral cleavage
1112:
1058:
1056:
1014:in oxygen-free
955:
910:
874:
781:
688:dorso-ventrally
656:Argentinosaurus
620:
615:
558:William Borlase
550:
540:and many other
455:spiral cleavage
329:
328:
321:proboscis worms
296:
294:
242:
126:
109:
104:
103:
98:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
40:
39:
36:
28:
17:
12:
11:
5:
7713:
7711:
7703:
7702:
7697:
7692:
7682:
7681:
7675:
7674:
7672:
7671:
7658:
7645:
7632:
7622:
7609:
7596:
7583:
7570:
7557:
7544:
7535:Fauna Europaea
7531:
7518:
7505:
7492:
7479:
7464:
7448:
7446:
7440:
7439:
7434:
7425:
7424:
7421:
7420:
7413:
7411:
7408:Incertae sedis
7403:
7402:
7399:
7398:
7396:
7395:
7390:
7385:
7380:
7375:
7370:
7365:
7360:
7355:
7353:Micrognathozoa
7350:
7345:
7343:Acanthocephala
7340:
7335:
7330:
7325:
7320:
7315:
7310:
7305:
7300:
7295:
7290:
7285:
7280:
7275:
7270:
7265:
7260:
7255:
7250:
7245:
7240:
7235:
7229:
7227:
7221:
7220:
7218:
7217:
7212:
7207:
7202:
7197:
7192:
7187:
7185:Lycopodiophyta
7182:
7177:
7172:
7167:
7162:
7157:
7152:
7146:
7144:
7138:
7137:
7135:
7134:
7129:
7124:
7119:
7114:
7109:
7104:
7098:
7096:
7090:
7089:
7087:
7086:
7081:
7076:
7071:
7066:
7061:
7056:
7051:
7046:
7041:
7036:
7031:
7026:
7021:
7016:
7011:
7006:
7001:
6999:Ancyromonadida
6996:
6991:
6985:
6983:
6972:
6966:
6965:
6962:
6961:
6959:
6958:
6953:
6951:Thermoproteota
6948:
6943:
6936:
6929:
6921:
6919:
6909:
6908:
6905:
6904:
6902:
6901:
6896:
6891:
6886:
6881:
6876:
6871:
6866:
6864:Pseudomonadota
6861:
6856:
6851:
6846:
6841:
6839:Mycoplasmatota
6836:
6834:Lentisphaerota
6831:
6826:
6821:
6816:
6814:Fusobacteriota
6811:
6809:Fibrobacterota
6806:
6801:
6796:
6791:
6786:
6779:
6774:
6769:
6764:
6759:
6754:
6749:
6744:
6739:
6734:
6729:
6724:
6719:
6714:
6712:Armatimonadota
6709:
6704:
6702:Actinomycetota
6699:
6693:
6691:
6677:
6676:
6669:
6667:
6666:
6659:
6652:
6644:
6635:
6634:
6632:
6631:
6624:
6617:
6614:
6613:
6610:
6609:
6607:
6606:
6605:
6604:
6599:
6594:
6589:
6584:
6572:
6571:
6570:
6565:
6560:
6548:
6547:
6546:
6541:
6536:
6524:
6523:
6522:
6517:
6512:
6507:
6499:Platyhelminths
6495:
6494:
6493:
6488:
6483:
6478:
6466:
6465:
6464:
6459:
6454:
6442:
6441:
6440:
6435:
6423:
6422:
6421:
6416:
6411:
6399:
6398:
6397:
6392:
6387:
6375:
6374:
6373:
6368:
6363:
6351:
6350:
6349:
6344:
6339:
6326:
6324:
6314:
6313:
6310:
6307:
6306:
6303:
6302:
6299:
6298:
6296:
6295:
6293:Centroneuralia
6290:
6285:
6280:
6275:
6261:
6258:
6257:
6254:
6253:
6250:
6249:
6246:
6245:
6242:
6241:
6238:
6237:
6234:
6233:
6230:
6229:
6226:
6225:
6222:
6221:
6219:
6218:
6213:
6207:
6205:
6199:
6198:
6196:
6195:
6188:
6182:
6180:
6171:
6165:
6164:
6162:
6161:
6153:
6147:
6141:
6140:
6138:
6137:
6129:
6123:
6119:
6118:
6116:
6115:
6108:
6098:
6092:
6089:Lophotrochozoa
6084:
6083:
6080:
6079:
6076:
6075:
6073:
6072:
6062:
6057:
6051:
6049:
6043:
6042:
6040:
6039:
6034:
6026:
6024:
6015:
6004:
6001:Platytrochozoa
5996:
5995:
5992:
5991:
5988:
5987:
5985:
5984:
5983:
5982:
5975:
5963:
5960:(Limnognathia)
5954:
5952:
5948:
5947:
5945:
5944:
5939:
5933:
5927:
5914:
5906:
5905:
5902:
5901:
5898:
5897:
5894:
5893:
5890:
5889:
5886:
5885:
5883:
5882:
5875:
5867:
5865:
5859:
5858:
5856:
5855:
5849:
5843:
5837:
5836:
5834:
5833:
5827:
5821:
5813:
5812:
5810:
5809:
5804:
5796:
5794:
5785:
5781:
5780:
5777:
5776:
5774:
5773:
5768:
5762:
5760:
5747:
5736:
5724:
5723:
5720:
5719:
5717:
5716:
5711:
5703:
5697:
5691:
5690:
5688:
5687:
5680:
5674:
5668:
5656:
5655:
5650:
5643:
5642:
5639:
5638:
5636:
5635:
5630:
5625:
5611:
5608:
5607:
5604:
5603:
5600:
5599:
5597:
5596:
5592:
5590:
5589:(Triploblasts)
5583:
5582:
5580:
5579:
5572:
5570:and relatives)
5562:
5556:
5544:
5543:
5541:
5540:
5535:
5527:
5521:
5509:
5508:
5505:
5504:
5503:
5502:
5501:
5500:
5497:Mesomycetozoea
5494:
5489:
5479:
5469:
5468:
5467:
5462:
5457:
5452:
5447:
5446:
5445:
5433:Diaphoretickes
5430:
5425:
5420:
5415:
5410:
5405:
5397:
5396:
5393:
5392:
5383:
5381:
5380:
5373:
5366:
5358:
5352:
5351:
5346:
5341:
5334:
5333:External links
5331:
5329:
5328:
5273:
5215:
5206:
5156:
5139:
5110:(3): 692β703.
5081:
5021:
5014:
4977:
4963:
4941:
4930:(5): 985β989.
4912:
4869:
4855:
4833:
4822:(3): 344β356.
4806:
4785:(3): 188β196.
4765:
4723:
4666:
4620:
4569:
4547:
4536:
4529:
4490:
4433:
4419:
4397:
4383:
4361:
4354:
4331:
4310:(5): 734β743.
4283:
4262:
4227:
4206:
4182:
4175:
4157:
4116:
4110:978-0470016176
4109:
4072:
4051:
4014:
4000:
3978:
3964:
3944:
3923:
3880:
3867:(1): 113β125.
3834:
3813:
3778:
3771:
3751:
3722:(5): 570β573.
3702:
3683:(3): 235β248.
3665:
3651:
3631:
3617:
3584:
3570:
3561:Animal Records
3550:
3524:(4): 335β358.
3501:
3487:
3467:
3453:
3432:
3394:
3387:
3369:
3362:
3321:
3300:
3237:
3194:
3143:
3129:
3107:
3096:(2): 271β561.
3074:
3037:
2991:
2966:
2959:
2929:
2927:
2924:
2922:
2919:
2918:
2917:
2910:
2903:
2894:
2891:
2792:Lophotrochozoa
2788:Vestimentifera
2772:
2766:
2765:
2762:
2761:
2757:
2756:
2753:
2752:
2748:
2747:
2744:
2743:
2739:
2738:
2735:
2734:
2730:
2729:
2726:
2725:
2721:
2720:
2717:
2716:
2712:
2711:
2708:
2707:
2703:
2702:
2699:
2698:
2693:
2690:
2689:
2686:
2685:
2681:
2680:
2677:
2676:
2669:
2666:
2665:
2662:
2661:
2654:
2648:
2646:
2640:
2638:
2629:
2627:
2624:
2623:
2620:
2619:
2612:
2609:
2608:
2605:
2604:
2597:
2594:
2593:
2590:
2589:
2582:
2579:
2578:
2575:
2574:
2570:
2569:
2566:
2565:
2558:
2555:
2554:
2551:
2550:
2543:
2537:
2535:
2532:
2531:
2528:
2527:
2520:
2517:
2516:
2513:
2512:
2504:
2498:
2496:
2493:
2492:
2489:
2488:
2479:
2473:
2471:
2468:Lophotrochozoa
2463:
2462:
2459:
2458:
2441:
2431:
2429:
2421:
2420:
2417:
2416:
2403:
2393:
2391:
2388:
2387:
2384:
2383:
2379:
2378:
2375:
2374:
2370:
2369:
2366:
2365:
2358:
2355:
2354:
2351:
2350:
2343:
2337:
2335:
2326:
2324:
2318:
2316:
2306:
2305:
2304:
2303:
2302:
2215:protonephridia
2206:
2203:
2178:Heteronemertea
2147:synapomorphies
2119:
2113:
2112:
2109:
2108:
2104:
2103:
2100:
2099:
2095:
2094:
2091:
2090:
2086:
2085:
2082:
2081:
2077:
2076:
2073:
2072:
2068:
2067:
2064:
2063:
2056:
2053:
2052:
2049:
2048:
2041:
2031:
2029:
2026:
2025:
2022:
2021:
2017:
2016:
2013:
2012:
2008:Bdellonemertea
2003:
1998:
1996:
1990:
1988:
1978:
1976:
1973:
1972:
1969:
1968:
1964:
1963:
1960:
1959:
1954:Heteronemertea
1948:
1942:
1940:
1935:
1933:
1930:
1929:
1926:
1925:
1921:Palaeonemertea
1915:
1909:
1907:
1897:
1896:
1895:
1894:
1893:
1891:
1888:
1790:
1787:
1785:
1782:
1781:
1780:
1779:
1778:
1765:incertae sedis
1762:
1761:
1760:
1759:
1758:
1751:
1738:
1737:
1736:
1734:Heteronemertea
1730:
1712:
1711:
1710:
1709:
1708:
1702:
1700:Tubulaniformes
1696:
1694:Carinomiformes
1688:Palaeonemertea
1677:
1676:
1675:
1674:
1673:
1672:
1665:
1631:
1604:Bdellonemertea
1597:Bdellonemertea
1585:
1584:
1583:
1576:Heteronemertea
1572:
1553:Palaeonemertea
1527:
1524:
1492:dungeness crab
1484:the nemertean
1467:chemoreception
1434:in the 1980s.
1414:Canary Islands
1299:A terrestrial
1280:
1277:
1252:imaginal discs
1223:Heteronemertea
1219:planktotrophic
1215:lecithotrophic
1167:strings. Some
1125:hermaphroditic
1111:
1108:
1067:The nemertean
1055:
1052:
1032:osmoregulation
1028:chemoreceptors
1002:. This stores
973:consists of a
954:
951:
947:osmoregulation
943:nephridiopores
926:protonephridia
909:
906:
873:
870:
854:L. longissimus
780:
777:
679:L. longissimus
676:
675:
666:
648:
619:
616:
614:
611:
549:
546:
522:Lophotrochozoa
514:synapomorphies
435:hermaphroditic
363:chemoreceptors
315:also known as
300:
299:
289:
288:
281:
280:
279:
278:
268:
263:
261:Palaeonemertea
255:
254:
250:
249:
237:
233:
232:
230:Lophotrochozoa
227:
223:
222:
217:
213:
212:
207:
203:
202:
197:
190:
189:
184:
177:
176:
171:
164:
163:
158:
154:
153:
148:
144:
143:
138:
134:
133:
120:
119:
111:
110:
99:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
44:
43:
37:
15:
13:
10:
9:
6:
4:
3:
2:
7712:
7701:
7698:
7696:
7693:
7691:
7688:
7687:
7685:
7668:
7663:
7659:
7655:
7650:
7646:
7642:
7637:
7633:
7629:
7623:
7619:
7614:
7610:
7606:
7601:
7597:
7593:
7588:
7584:
7580:
7575:
7571:
7567:
7562:
7558:
7554:
7549:
7545:
7541:
7536:
7532:
7528:
7523:
7519:
7515:
7510:
7506:
7502:
7497:
7493:
7489:
7484:
7480:
7475:
7469:
7465:
7460:
7454:
7450:
7449:
7447:
7445:
7441:
7437:
7432:
7418:
7417:
7412:
7410:
7409:
7404:
7394:
7391:
7389:
7386:
7384:
7381:
7379:
7376:
7374:
7371:
7369:
7366:
7364:
7361:
7359:
7356:
7354:
7351:
7349:
7346:
7344:
7341:
7339:
7336:
7334:
7331:
7329:
7326:
7324:
7321:
7319:
7316:
7314:
7311:
7309:
7306:
7304:
7301:
7299:
7296:
7294:
7291:
7289:
7286:
7284:
7281:
7279:
7276:
7274:
7271:
7269:
7266:
7264:
7261:
7259:
7256:
7254:
7251:
7249:
7246:
7244:
7241:
7239:
7236:
7234:
7231:
7230:
7228:
7226:
7222:
7216:
7213:
7211:
7208:
7206:
7203:
7201:
7198:
7196:
7193:
7191:
7188:
7186:
7183:
7181:
7178:
7176:
7173:
7171:
7168:
7166:
7163:
7161:
7158:
7156:
7153:
7151:
7148:
7147:
7145:
7143:
7139:
7133:
7132:Basidiomycota
7130:
7128:
7125:
7123:
7120:
7118:
7117:Glomeromycota
7115:
7113:
7110:
7108:
7105:
7103:
7100:
7099:
7097:
7095:
7091:
7085:
7082:
7080:
7079:Stramenopiles
7077:
7075:
7072:
7070:
7067:
7065:
7062:
7060:
7057:
7055:
7052:
7050:
7047:
7045:
7042:
7040:
7037:
7035:
7032:
7030:
7027:
7025:
7022:
7020:
7017:
7015:
7012:
7010:
7007:
7005:
7004:Apusomonadida
7002:
7000:
6997:
6995:
6992:
6990:
6987:
6986:
6984:
6981:
6976:
6973:
6971:
6967:
6957:
6954:
6952:
6949:
6947:
6944:
6941:
6940:Nanoarchaeota
6937:
6934:
6930:
6927:
6926:Euryarchaeota
6923:
6922:
6920:
6918:
6914:
6910:
6900:
6897:
6895:
6892:
6890:
6887:
6885:
6882:
6880:
6877:
6875:
6874:Spirochaetota
6872:
6870:
6869:Rhodothermota
6867:
6865:
6862:
6860:
6857:
6855:
6852:
6850:
6847:
6845:
6842:
6840:
6837:
6835:
6832:
6830:
6827:
6825:
6822:
6820:
6817:
6815:
6812:
6810:
6807:
6805:
6802:
6800:
6799:Dictyoglomota
6797:
6795:
6792:
6790:
6787:
6784:
6783:Cyanobacteria
6780:
6778:
6775:
6773:
6772:Chrysiogenota
6770:
6768:
6767:Chloroflexota
6765:
6763:
6760:
6758:
6755:
6753:
6750:
6748:
6747:Calditrichota
6745:
6743:
6742:Caldisericota
6740:
6738:
6735:
6733:
6730:
6728:
6725:
6723:
6720:
6718:
6717:Atribacterota
6715:
6713:
6710:
6708:
6705:
6703:
6700:
6698:
6695:
6694:
6692:
6690:
6686:
6682:
6678:
6673:
6665:
6660:
6658:
6653:
6651:
6646:
6645:
6642:
6629:
6628:dubious phyla
6625:
6623:
6619:
6618:
6615:
6603:
6600:
6598:
6595:
6593:
6590:
6588:
6585:
6583:
6580:
6579:
6578:
6577:
6573:
6569:
6566:
6564:
6561:
6559:
6556:
6555:
6554:
6553:
6549:
6545:
6542:
6540:
6537:
6535:
6532:
6531:
6530:
6529:
6525:
6521:
6518:
6516:
6513:
6511:
6508:
6506:
6503:
6502:
6501:
6500:
6496:
6492:
6489:
6487:
6484:
6482:
6479:
6477:
6474:
6473:
6472:
6471:
6467:
6463:
6460:
6458:
6455:
6453:
6450:
6449:
6448:
6447:
6443:
6439:
6436:
6434:
6431:
6430:
6429:
6428:
6427:Hemichordates
6424:
6420:
6417:
6415:
6412:
6410:
6407:
6406:
6405:
6404:
6400:
6396:
6393:
6391:
6388:
6386:
6383:
6382:
6381:
6380:
6376:
6372:
6369:
6367:
6364:
6362:
6359:
6358:
6357:
6356:
6352:
6348:
6345:
6343:
6342:Glass sponges
6340:
6338:
6335:
6334:
6333:
6332:
6328:
6327:
6325:
6319:
6315:
6308:
6294:
6291:
6289:
6286:
6284:
6283:Deuterostomia
6281:
6279:
6276:
6272:
6269:of Bilateria
6268:
6263:
6262:
6259:
6217:
6214:
6212:
6209:
6208:
6206:
6204:
6200:
6194:
6193:
6189:
6187:
6184:
6183:
6181:
6179:
6175:
6172:
6170:
6166:
6160:
6159:
6155:
6154:
6151:
6148:
6146:
6142:
6136:
6135:
6131:
6130:
6127:
6124:
6120:
6114:
6113:
6109:
6107:
6105:
6102:Cycliophora (
6100:
6099:
6096:
6093:
6090:
6085:
6070:
6068:
6063:
6061:
6058:
6056:
6053:
6052:
6050:
6048:
6044:
6038:
6035:
6033:
6032:
6028:
6027:
6025:
6023:
6019:
6016:
6012:
6008:
6005:
6002:
5997:
5981:
5980:
5976:
5974:
5973:
5969:
5968:
5967:
5964:
5962:
5961:
5956:
5955:
5953:
5949:
5943:
5940:
5938:
5935:
5934:
5931:
5928:
5926:
5922:
5918:
5915:
5912:
5907:
5881:
5880:
5876:
5874:
5873:
5869:
5868:
5866:
5864:
5860:
5854:
5851:
5850:
5847:
5844:
5842:
5841:Panarthropoda
5838:
5832:
5829:
5828:
5825:
5822:
5818:
5814:
5808:
5805:
5803:
5802:
5798:
5797:
5795:
5793:
5789:
5786:
5782:
5772:
5769:
5767:
5764:
5763:
5761:
5759:
5755:
5751:
5748:
5745:
5740:
5737:
5734:
5729:
5725:
5715:
5712:
5710:
5709:
5705:
5704:
5701:
5698:
5696:
5692:
5686:
5685:
5681:
5679:
5676:
5675:
5672:
5669:
5666:
5661:
5657:
5653:
5648:
5644:
5634:
5631:
5629:
5626:
5622:
5618:
5613:
5612:
5609:
5594:
5593:
5591:
5588:
5584:
5578:
5577:
5573:
5571:
5569:
5564:
5563:
5560:
5557:
5554:
5549:
5545:
5539:
5536:
5534:
5533:
5529:
5528:
5525:
5522:
5519:
5514:
5510:
5498:
5495:
5493:
5490:
5488:
5485:
5484:
5483:
5480:
5478:
5475:
5474:
5473:
5470:
5466:
5463:
5461:
5460:Stramenopiles
5458:
5456:
5453:
5451:
5448:
5444:
5441:
5440:
5439:
5436:
5435:
5434:
5431:
5429:
5426:
5423:(major groups
5421:
5419:
5416:
5414:
5411:
5409:
5406:
5403:
5399:
5398:
5394:
5390:
5387:
5379:
5374:
5372:
5367:
5365:
5360:
5359:
5356:
5350:
5347:
5345:
5342:
5340:
5337:
5336:
5332:
5324:
5320:
5316:
5312:
5308:
5304:
5300:
5296:
5292:
5288:
5284:
5277:
5274:
5269:
5265:
5260:
5255:
5251:
5247:
5243:
5239:
5238:
5233:
5226:
5224:
5222:
5220:
5216:
5210:
5207:
5199:
5195:
5191:
5187:
5183:
5182:
5174:
5167:
5165:
5163:
5161:
5157:
5152:
5151:
5143:
5140:
5135:
5131:
5127:
5123:
5118:
5113:
5109:
5105:
5104:
5099:
5092:
5090:
5088:
5086:
5082:
5077:
5073:
5068:
5063:
5059:
5055:
5051:
5047:
5046:
5041:
5034:
5032:
5030:
5028:
5026:
5022:
5017:
5011:
5007:
5003:
5002:
4994:
4992:
4990:
4988:
4986:
4984:
4982:
4978:
4966:
4960:
4956:
4952:
4945:
4942:
4937:
4933:
4929:
4925:
4924:
4916:
4913:
4908:
4904:
4900:
4896:
4892:
4888:
4884:
4880:
4873:
4870:
4858:
4852:
4848:
4844:
4837:
4834:
4829:
4825:
4821:
4817:
4810:
4807:
4802:
4798:
4793:
4788:
4784:
4780:
4776:
4769:
4766:
4753:
4749:
4745:
4738:
4736:
4734:
4732:
4730:
4728:
4724:
4719:
4715:
4710:
4705:
4701:
4697:
4693:
4689:
4685:
4681:
4677:
4670:
4667:
4656:on 2018-11-04
4652:
4648:
4644:
4643:
4635:
4633:
4624:
4621:
4616:
4612:
4607:
4602:
4597:
4592:
4588:
4584:
4580:
4573:
4570:
4557:
4551:
4548:
4545:
4540:
4537:
4532:
4526:
4522:
4518:
4517:
4509:
4507:
4505:
4503:
4501:
4499:
4497:
4495:
4491:
4486:
4482:
4477:
4472:
4468:
4464:
4460:
4456:
4452:
4448:
4444:
4437:
4434:
4422:
4416:
4412:
4408:
4401:
4398:
4386:
4380:
4376:
4372:
4365:
4362:
4357:
4351:
4347:
4340:
4338:
4336:
4332:
4327:
4323:
4318:
4313:
4309:
4305:
4304:
4299:
4292:
4290:
4288:
4284:
4279:
4273:
4265:
4259:
4255:
4251:
4250:
4242:
4240:
4238:
4236:
4234:
4232:
4228:
4223:
4217:
4209:
4203:
4199:
4195:
4194:
4186:
4183:
4178:
4172:
4168:
4161:
4158:
4153:
4149:
4144:
4139:
4135:
4131:
4127:
4120:
4117:
4112:
4106:
4102:
4098:
4094:
4093:
4085:
4083:
4081:
4079:
4077:
4073:
4068:
4062:
4054:
4048:
4044:
4040:
4039:
4031:
4029:
4027:
4025:
4023:
4021:
4019:
4015:
4003:
3997:
3993:
3989:
3982:
3979:
3967:
3961:
3957:
3956:
3948:
3945:
3940:
3934:
3926:
3920:
3916:
3912:
3911:
3903:
3901:
3899:
3897:
3895:
3893:
3891:
3889:
3887:
3885:
3881:
3875:
3870:
3866:
3862:
3861:
3856:
3849:
3847:
3845:
3843:
3841:
3839:
3835:
3830:
3824:
3816:
3810:
3806:
3802:
3801:
3793:
3791:
3789:
3787:
3785:
3783:
3779:
3774:
3768:
3764:
3763:
3755:
3752:
3747:
3743:
3738:
3733:
3729:
3725:
3721:
3717:
3713:
3706:
3703:
3698:
3694:
3690:
3686:
3682:
3678:
3677:
3676:Zoomorphology
3669:
3666:
3654:
3648:
3644:
3643:
3635:
3632:
3620:
3614:
3610:
3606:
3599:
3597:
3595:
3593:
3591:
3589:
3585:
3573:
3567:
3563:
3562:
3554:
3551:
3543:
3539:
3535:
3531:
3527:
3523:
3519:
3512:
3505:
3502:
3490:
3484:
3480:
3479:
3471:
3468:
3456:
3450:
3446:
3442:
3436:
3433:
3421:on 2011-09-27
3420:
3416:
3415:Massachusetts
3412:
3408:
3405:Gibson, Ray.
3401:
3399:
3395:
3390:
3384:
3380:
3373:
3370:
3365:
3359:
3355:
3348:
3346:
3344:
3342:
3340:
3338:
3336:
3334:
3332:
3330:
3328:
3326:
3322:
3317:
3311:
3303:
3297:
3293:
3289:
3288:
3280:
3278:
3276:
3274:
3272:
3270:
3268:
3266:
3264:
3262:
3260:
3258:
3256:
3254:
3252:
3250:
3248:
3246:
3244:
3242:
3238:
3233:
3229:
3224:
3219:
3215:
3211:
3210:
3205:
3198:
3195:
3190:
3186:
3181:
3176:
3172:
3168:
3164:
3160:
3159:
3154:
3147:
3144:
3132:
3126:
3122:
3118:
3111:
3108:
3103:
3099:
3095:
3091:
3090:
3081:
3079:
3075:
3070:
3066:
3062:
3058:
3054:
3050:
3049:
3041:
3038:
3033:
3029:
3025:
3021:
3017:
3013:
3009:
3005:
3001:
2995:
2992:
2980:
2976:
2970:
2967:
2962:
2956:
2952:
2948:
2944:
2937:
2935:
2931:
2925:
2920:
2916:
2915:
2911:
2909:
2908:
2904:
2902:
2901:
2897:
2896:
2892:
2890:
2889:bilaterians.
2888:
2884:
2880:
2876:
2875:Echinodermata
2872:
2871:Deuterostomia
2868:
2865:. Most other
2864:
2860:
2856:
2852:
2848:
2844:
2839:
2837:
2833:
2829:
2825:
2821:
2817:
2813:
2809:
2805:
2801:
2797:
2793:
2789:
2785:
2776:
2764:
2763:
2755:
2754:
2746:
2745:
2737:
2736:
2728:
2727:
2719:
2718:
2710:
2709:
2701:
2700:
2697:
2692:
2691:
2688:
2687:
2679:
2678:
2675:
2674:
2668:
2667:
2664:
2663:
2660:
2659:
2652:
2651:
2644:
2643:
2636:
2633:
2632:
2626:
2625:
2622:
2621:
2618:
2617:
2611:
2610:
2607:
2606:
2603:
2602:
2596:
2595:
2592:
2591:
2588:
2587:
2581:
2580:
2577:
2576:
2568:
2567:
2564:
2563:
2557:
2556:
2553:
2552:
2549:
2548:
2541:
2540:
2534:
2533:
2530:
2529:
2526:
2525:
2519:
2518:
2515:
2514:
2511:
2509:
2502:
2501:
2495:
2494:
2491:
2490:
2487:
2485:
2477:
2476:
2469:
2465:
2464:
2461:
2460:
2457:
2455:
2451:
2447:
2439:
2435:
2434:
2427:
2423:
2422:
2419:
2418:
2415:
2413:
2409:
2401:
2400:Deuterostomia
2397:
2396:
2390:
2389:
2386:
2385:
2377:
2376:
2368:
2367:
2364:
2363:
2357:
2356:
2353:
2352:
2349:
2348:
2341:
2340:
2333:
2330:
2329:
2322:
2321:
2314:
2310:
2309:
2301:
2299:
2295:
2291:
2287:
2283:
2279:
2275:
2271:
2268:
2264:
2260:
2256:
2252:
2247:
2244:
2240:
2236:
2232:
2228:
2224:
2220:
2216:
2212:
2204:
2202:
2199:
2195:
2194:Hoplonemertea
2191:
2187:
2183:
2179:
2175:
2171:
2167:
2163:
2159:
2155:
2150:
2148:
2144:
2135:
2123:
2111:
2110:
2102:
2101:
2093:
2092:
2084:
2083:
2075:
2074:
2066:
2065:
2062:
2061:
2060:Polystilifera
2055:
2054:
2051:
2050:
2047:
2046:
2045:Monostilifera
2039:
2038:Hoplonemertea
2035:
2034:
2028:
2027:
2024:
2023:
2015:
2014:
2011:
2009:
2002:
2001:
1994:
1993:
1986:
1982:
1981:
1975:
1974:
1971:
1970:
1962:
1961:
1958:
1955:
1946:
1945:
1939:
1938:
1932:
1931:
1928:
1927:
1924:
1922:
1913:
1912:
1905:
1901:
1900:
1889:
1887:
1885:
1881:
1877:
1876:Pennsylvanian
1874:, one of the
1873:
1872:
1866:
1864:
1860:
1859:turbellarians
1856:
1852:
1848:
1844:
1840:
1836:
1832:
1828:
1825:
1824:Burgess Shale
1821:
1820:
1815:
1810:
1808:
1804:
1800:
1799:Knaust (2010)
1796:
1789:Fossil record
1788:
1783:
1776:
1775:Arhynchocoela
1772:
1768:
1767:
1766:
1763:
1756:
1755:Monostilifera
1752:
1750:
1749:Polystilifera
1746:
1745:
1743:
1742:Hoplonemertea
1739:
1735:
1731:
1729:
1725:
1724:
1723:
1719:
1718:
1717:
1713:
1707:
1706:Archinemertea
1703:
1701:
1697:
1695:
1691:
1690:
1689:
1685:
1684:
1682:
1681:
1680:
1670:
1669:Polystilifera
1666:
1663:
1659:
1658:Monostilifera
1655:
1654:
1652:
1648:
1644:
1640:
1636:
1635:Hoplonemertea
1632:
1629:
1625:
1621:
1617:
1613:
1609:
1605:
1601:
1600:
1598:
1595:except order
1594:
1590:
1586:
1581:
1577:
1573:
1570:
1566:
1562:
1558:
1554:
1551:
1548:
1547:
1545:
1542:
1539:
1538:
1537:
1533:
1525:
1523:
1521:
1517:
1516:
1511:
1506:
1504:
1500:
1496:
1493:
1489:
1488:
1483:
1482:San Francisco
1478:
1476:
1472:
1468:
1464:
1460:
1456:
1452:
1448:
1444:
1441:, feeding on
1440:
1435:
1433:
1429:
1425:
1424:
1419:
1415:
1411:
1407:
1403:
1399:
1395:
1391:
1390:
1385:
1381:
1380:hermaphrodite
1378:
1374:
1370:
1366:
1362:
1358:
1354:
1350:
1349:British Isles
1346:
1342:
1337:
1335:
1331:
1327:
1323:
1319:
1312:
1308:
1304:
1303:
1297:
1290:
1285:
1278:
1276:
1274:
1273:
1267:
1265:
1261:
1260:metamorphosis
1257:
1253:
1249:
1245:
1242:
1238:
1234:
1233:Hubrechtiidae
1231:
1228:
1224:
1220:
1216:
1212:
1209:
1205:
1201:
1197:
1194:and grows by
1193:
1189:
1184:
1182:
1178:
1174:
1170:
1166:
1162:
1157:
1153:
1149:
1145:
1141:
1137:
1133:
1128:
1126:
1122:
1118:
1115:feature. All
1109:
1107:
1105:
1104:Monostilifera
1102:
1098:
1094:
1087:
1083:
1079:
1072:
1071:
1053:
1051:
1049:
1048:
1043:
1041:
1037:
1033:
1029:
1024:
1019:
1017:
1013:
1009:
1005:
1001:
996:
992:
988:
984:
980:
976:
972:
964:
959:
952:
950:
948:
944:
939:
935:
931:
927:
919:
914:
907:
905:
903:
897:
895:
891:
887:
883:
879:
871:
869:
867:
863:
859:
855:
850:
848:
847:Polystilifera
843:
838:
834:
830:
822:
817:
813:
810:
807:
799:
798:
793:
789:
786:
778:
776:
774:
770:
766:
762:
758:
754:
749:
745:
743:
739:
735:
731:
727:
723:
719:
715:
711:
707:
704:
700:
696:
691:
689:
684:
680:
673:
672:
667:
664:
663:
658:
657:
653:
649:
646:
642:
641:
640:
638:
634:
633:
628:
627:
617:
612:
610:
608:
604:
600:
596:
592:
588:
584:
580:
575:
573:
572:
567:
563:
559:
555:
547:
545:
543:
539:
535:
531:
527:
523:
519:
515:
511:
507:
503:
499:
495:
491:
487:
482:
480:
476:
472:
468:
464:
460:
457:and grows by
456:
452:
448:
444:
440:
436:
431:
429:
425:
421:
417:
413:
409:
405:
402:, feeding on
401:
396:
395:dorso-ventral
392:
388:
383:
381:
376:
372:
368:
364:
360:
356:
351:
349:
345:
340:
336:
326:
322:
318:
314:
310:
306:
298:
297:Rhynchocoela
290:
286:
282:
276:
272:
271:Hoplonemertea
269:
267:
264:
262:
259:
258:
256:
251:
246:
241:
238:
235:
234:
231:
228:
226:Superphylum:
225:
224:
221:
218:
215:
214:
211:
208:
205:
204:
201:
198:
195:
192:
191:
188:
185:
182:
179:
178:
175:
172:
169:
166:
165:
162:
159:
156:
155:
152:
149:
146:
145:
142:
139:
136:
135:
130:
125:
121:
117:
112:
102:
97:
92:
87:
82:
77:
72:
67:
62:
57:
52:
47:
33:
30:
26:
22:
7443:
7414:
7406:
7362:
7328:Orthonectida
7323:Gastrotricha
7298:Nematomorpha
7273:Chaetognatha
7263:Hemichordate
7190:Pteridophyta
7059:Malawimonada
6933:Korarchaeota
6894:Thermotogota
6879:Synergistota
6854:Nitrospirota
6849:Nitrospinota
6794:Deinococcota
6727:Bacteroidota
6626:Potentially
6621:
6574:
6550:
6544:Gymnolaemata
6539:Stenolaemata
6528:Ectoproctans
6526:
6497:
6468:
6444:
6438:Pterobranchs
6425:
6401:
6377:
6353:
6329:
6323:within phyla
6321:Major groups
6191:
6178:Bryozoa s.l.
6169:Lophophorata
6157:
6156:
6133:
6111:
6103:
6066:
6055:Orthonectida
6030:
5977:
5970:
5959:
5878:
5871:
5800:
5758:Scalidophora
5707:
5695:Ambulacraria
5682:
5595:(see belowβ)
5575:
5567:
5531:
5482:Opisthokonta
5290:
5286:
5276:
5241:
5235:
5209:
5185:
5179:
5149:
5142:
5107:
5101:
5049:
5043:
5000:
4968:. Retrieved
4954:
4944:
4927:
4921:
4915:
4882:
4878:
4872:
4860:. Retrieved
4846:
4836:
4819:
4815:
4809:
4782:
4778:
4768:
4756:. Retrieved
4752:the original
4686:(1): 12400.
4683:
4679:
4669:
4658:. Retrieved
4651:the original
4646:
4640:
4631:
4623:
4586:
4582:
4572:
4560:. Retrieved
4550:
4539:
4515:
4453:(1): 12400.
4450:
4446:
4436:
4424:. Retrieved
4410:
4400:
4388:. Retrieved
4374:
4364:
4345:
4307:
4301:
4248:
4192:
4185:
4166:
4160:
4133:
4129:
4119:
4090:
4037:
4005:. Retrieved
3991:
3981:
3969:. Retrieved
3954:
3947:
3909:
3864:
3858:
3799:
3761:
3754:
3719:
3715:
3705:
3680:
3674:
3668:
3656:. Retrieved
3641:
3634:
3622:. Retrieved
3608:
3575:. Retrieved
3560:
3553:
3521:
3517:
3504:
3492:. Retrieved
3477:
3470:
3458:. Retrieved
3444:
3435:
3423:. Retrieved
3419:the original
3378:
3372:
3353:
3286:
3216:(8): 675β9.
3213:
3207:
3197:
3162:
3156:
3146:
3134:. Retrieved
3120:
3110:
3093:
3087:
3052:
3046:
3040:
3007:
3003:
2994:
2984:February 18,
2982:. Retrieved
2969:
2946:
2912:
2905:
2898:
2883:Acoelomorpha
2840:
2781:
2695:
2673:Gastrotricha
2671:
2656:
2614:
2599:
2585:
2584:
2560:
2545:
2522:
2506:
2481:
2443:
2405:
2360:
2345:
2332:Acoelomorpha
2248:
2208:
2162:paraphyletic
2151:
2143:monophyletic
2140:
2134:paraphyletic
2058:
2043:
2005:
1950:
1917:
1903:
1869:
1867:
1839:morphologies
1829:
1817:
1811:
1792:
1764:
1722:Pilidiophora
1714:Superclass
1678:
1556:
1535:
1519:
1513:
1507:
1498:
1494:
1485:
1479:
1459:Argonemertes
1458:
1436:
1421:
1402:Indo-Pacific
1387:
1361:Gran Canaria
1340:
1338:
1315:
1309:Island, the
1300:
1270:
1269:The species
1268:
1185:
1169:bathypelagic
1146:. Temporary
1129:
1113:
1090:
1081:
1068:
1045:
1044:
1020:
968:
962:
923:
898:
884:rather than
875:
853:
851:
826:
820:
803:
795:
782:
750:
746:
736:, a kind of
692:
682:
678:
677:
669:
660:
654:
630:
624:
621:
599:Rhynchocoela
598:
594:
590:
576:
569:
565:
554:Olaus Magnus
551:
510:monophyletic
506:paraphyletic
484:Traditional
483:
432:
384:
352:
320:
317:ribbon worms
316:
304:
303:
292:
266:Pilidiophora
239:
216:(unranked):
206:(unranked):
193:
180:
167:
157:Subkingdom:
29:
7574:iNaturalist
7468:Wikispecies
7383:Brachiopoda
7358:Cycliophora
7303:Onychophora
7278:Kinorhyncha
7200:Ginkgophyta
7195:Cycadophyta
7160:Chlorophyta
7150:Glaucophyta
6844:Myxococcota
6762:Chlorobiota
6757:Chlamydiota
6602:Tusk shells
6587:Cephalopods
6558:Polychaetes
6505:Turbellaria
6486:Crustaceans
6462:Secernentea
6452:Chromadorea
6433:Acorn worms
6403:Echinoderms
6395:Vertebrates
6337:Demosponges
6271:is disputed
5733:Protostomia
5621:is disputed
5548:ParaHoxozoa
5188:: 229β256.
4885:: 117β128.
4583:BMC Biology
4007:22 February
3117:"The worms"
2816:trochophore
2800:Brachiopoda
2784:Pogonophora
2616:Myzostomida
2562:Brachiopoda
2426:Protostomia
2408:Echinoderms
2294:sipunculans
2246:nephridia.
2243:flame cells
1880:Mazon Creek
1744:(= Enopla)
1716:Neonemertea
1620:filter feed
1569:peristalsis
1473:inside the
1471:commensally
1451:crustaceans
1394:Australasia
1389:Geonemertes
1377:protandrous
1363:, and in a
1332:or produce
1311:Philippines
1302:Geonemertes
1256:archenteron
1248:deerstalker
1241:unicellular
1208:planuliform
1097:peristalsis
1086:Grevelingen
977:and paired
938:flame cells
930:nitrogenous
882:circulation
757:rhynchocoel
708:containing
662:Patagotitan
613:Description
542:protostomes
534:brachiopods
512:, its main
422:inside the
420:commensally
412:crustaceans
380:flame cells
344:filter feed
330:rhynchocoel
210:Protostomia
174:ParaHoxozoa
25:Gura Teghii
7690:Nemerteans
7684:Categories
7416:Parakaryon
7378:Entoprocta
7313:Arthropoda
7308:Tardigrada
7288:Priapulida
7283:Loricifera
7268:Echinoderm
7238:Ctenophora
7210:Gnetophyta
7165:Charophyta
7155:Rhodophyta
7127:Ascomycota
7122:Zygomycota
7064:Metamonada
7039:Euglenozoa
7024:Ciliophora
6732:Balneolota
6707:Aquificota
6582:Gastropods
6563:Clitellata
6470:Arthropods
6409:Sea lilies
6355:Cnidarians
6273:; see also
6203:Brachiozoa
5966:Syndermata
5925:Gnathifera
5623:; see also
5568:Trichoplax
5566:Placozoa (
5553:Planulozoa
5213:group=Note
4660:2011-02-17
4562:31 January
3411:Woods Hole
2975:"Nemertea"
2926:References
2867:bilaterian
2863:Priapulida
2855:Arthropoda
2843:protostome
2812:Entoprocta
2796:lophophore
2454:priapulids
2446:Arthropods
2219:Ctenophora
2211:cladistics
1843:Ordovician
1647:parasitism
1608:commensals
1530:See also:
1463:scavengers
1439:carnivores
1432:introduced
1398:Seychelles
1353:Sao Miguel
1334:cellophane
1177:viviparous
1165:gelatinous
1144:mesenchyme
1121:gonochoric
1040:statocysts
1000:hemoglobin
995:protostome
934:metabolism
918:flame cell
902:hemoglobin
837:calcareous
773:epithelium
734:mesenchyme
718:microvilli
706:epithelium
645:blue whale
637:St Andrews
595:Nemertinea
471:cnidarians
426:cavity of
416:scavengers
400:carnivores
295:Nemertinea
7333:Dicyemida
7205:Pinophyta
7084:Telonemia
7019:Cryptista
7009:Breviatea
6994:Amoebozoa
6989:Alveolata
6970:Eukaryote
6722:Bacillota
6568:Sipuncula
6515:Monogenea
6510:Trematoda
6481:Myriapods
6446:Nematodes
6390:Tunicates
6385:Lancelets
6379:Chordates
6371:Myxozoans
6278:Nephrozoa
6267:phylogeny
6067:Salinella
6022:Rouphozoa
5863:Tactopoda
5792:Nematoida
5744:Ecdysozoa
5665:Bilateria
5652:Bilateria
5633:Benthozoa
5628:Eumetazoa
5617:phylogeny
5587:Bilateria
5477:Amoebozoa
5455:Alveolata
5443:Cryptista
5418:Eukaryota
5323:205247296
5126:1540-7063
4907:134814852
4801:239872311
4589:(1): 23.
4272:cite book
4216:cite book
4061:cite book
3933:cite book
3823:cite book
3697:206787592
3538:210840060
3310:cite book
3069:0260-9541
3032:249434440
2847:Ecdysozoa
2820:Phoronida
2808:Phoronida
2775:Bilateria
2601:Dicyemida
2547:Phoronida
2450:nematodes
2438:Ecdysozoa
2412:chordates
2313:Bilateria
2298:echiurans
2282:polyclads
2270:flatworms
2259:echiurans
2239:entoproct
2227:Sipuncula
1835:vermiform
1822:from the
1667:Suborder
1656:Suborder
1628:inchworms
1614:of large
1565:burrowing
1561:epidermis
1499:C. errans
1455:myriapods
1437:Most are
1412:, in the
1410:Frankfurt
1365:lava tube
1345:Australia
1318:holdfasts
1264:Hox genes
1204:juveniles
1148:gonoducts
1016:sediments
1012:burrowing
908:Excretion
886:diffusion
785:proboscis
710:rhabdites
703:glandular
652:dinosaurs
591:Nemertini
518:flatworms
335:proboscis
293:Nemertini
200:Nephrozoa
187:Bilateria
161:Eumetazoa
147:Kingdom:
141:Eukaryota
7501:Nemertea
7488:Nemertea
7474:Nemertea
7453:Wikidata
7444:Nemertea
7393:Annelida
7388:Mollusca
7368:Phoronid
7363:Nemertea
7338:Rotifera
7318:Flatworm
7293:Nematoda
7258:Chordate
7248:Cnidaria
7243:Placozoa
7074:Rhizaria
7049:Haptista
7029:Cercozoa
6689:Bacteria
6592:Bivalves
6576:Molluscs
6552:Annelids
5911:Spiralia
5518:Animalia
5472:Amorphea
5450:Rhizaria
5438:Hacrobia
5428:Excavata
5413:Bacteria
5315:26842059
5268:18192183
5198:Archived
5134:21708766
5076:12639321
4718:28963523
4615:25888821
4485:28963523
4326:21558236
4152:19247975
3746:17686756
3542:Archived
3460:30 March
3425:30 March
3232:17051477
3189:19129141
2893:See also
2879:Chordata
2859:Nematoda
2824:Rotifera
2653:
2637:
2635:Platyzoa
2586:Nemertea
2524:Mollusca
2508:Annelida
2503:
2478:
2456:, etc.)
2414:, etc.)
2402:
2342:
2334:
2323:
2290:Spiralia
2286:triclads
2267:polyclad
2263:molluscs
2255:annelids
2251:mesoderm
2231:Annelida
2196:, while
2040:
1995:
1947:
1914:
1904:Nemertea
1884:Illinois
1863:annelids
1819:Amiskwia
1777:in 1995)
1526:Taxonomy
1443:annelids
1307:Mindanao
1237:pilidium
1225:and the
1101:suborder
1054:Movement
1023:cerebral
989:of four
894:skeleton
866:bivalves
699:ciliated
562:Gunnerus
552:In 1555
530:annelids
526:molluscs
486:taxonomy
479:fragment
475:pilidium
467:planulas
451:gonopore
428:molluscs
404:annelids
305:Nemertea
285:Synonyms
253:Classes
245:Schultze
240:Nemertea
236:Phylum:
220:Spiralia
151:Animalia
137:Domain:
35:Nemertea
21:Nematoda
7459:Q185631
7373:Bryozoa
7069:Provora
7044:Jakobea
7034:Discoba
6980:Protist
6917:Archaea
6670:Extant
6597:Chitons
6520:Cestoda
6457:Enoplea
6331:Sponges
6104:Symbion
6047:Mesozoa
5487:Animals
5408:Archaea
5384:Extant
5295:Bibcode
5259:2614230
5067:1691252
5006:279β280
4936:1303083
4887:Bibcode
4816:Lethaia
4709:5622052
4688:Bibcode
4606:4426647
4521:276β278
4476:5622052
4455:Bibcode
4198:212β214
4043:275β276
3805:274β275
3737:1975765
3292:271β274
3180:2660960
3055:: 7β8.
3012:Bibcode
2951:815β816
2804:Bryozoa
2645:
2542:
2486:
2484:Bryozoa
2470:
2440:
2428:
2398:
2315:
2223:Echiura
2036:
2010:
1987:
1906:
1816:fossil
1807:Germany
1643:pelagic
1639:benthic
1624:pharynx
1610:in the
1593:stylets
1418:Madeira
1371:on the
1369:Kaumana
1355:in the
1326:sessile
1235:form a
1181:embryos
1161:cocoons
1136:ovaries
991:ganglia
842:everted
742:pelagic
730:classes
695:cuticle
548:History
538:bryozoa
490:classes
443:ovaries
375:lateral
371:respire
355:ganglia
313:animals
287:
7667:152391
7654:272418
7641:445195
7625:NZOR:
7514:497163
7233:Sponge
7225:Animal
6622:bolded
5465:Plants
5402:Domain
5386:animal
5321:
5313:
5287:Nature
5266:
5256:
5132:
5124:
5074:
5064:
5012:
4970:11 Feb
4961:
4934:
4905:
4862:11 Feb
4853:
4799:
4716:
4706:
4613:
4603:
4527:
4483:
4473:
4426:31 Jan
4417:
4390:31 Jan
4381:
4352:
4324:
4260:
4204:
4173:
4150:
4107:
4049:
3998:
3962:
3921:
3811:
3769:
3744:
3734:
3695:
3658:26 Jan
3649:
3624:31 Jan
3615:
3577:27 Jan
3568:
3536:
3494:27 Jan
3485:
3451:
3385:
3360:
3298:
3230:
3187:
3177:
3136:27 Jan
3127:
3067:
3030:
3004:Nature
2957:
2881:. The
2482:
2466:
2436:
2424:
2347:Acoela
2311:
2182:Enopla
2170:Anopla
2152:While
2130:
2128:
2006:
1985:Enopla
1983:
1956:
1952:
1919:
1902:
1855:Canada
1847:Katian
1769:Order
1753:Order
1747:Order
1740:Class
1732:Order
1726:Order
1720:Class
1704:Order
1698:Order
1692:Order
1686:Class
1662:stylet
1651:stylet
1633:Order
1612:mantle
1602:Order
1589:Enopla
1587:Class
1580:genera
1574:Order
1544:Anopla
1505:beds.
1475:mantle
1357:Azores
1230:family
1211:larvae
1188:zygote
1140:testes
1132:gonads
1036:ocelli
1008:anoxia
1004:oxygen
833:stylet
829:Enopla
809:Anopla
769:coelom
765:Enopla
761:Anopla
726:dermis
724:, the
607:Acoela
601:. The
597:, and
583:Nereus
502:Enopla
500:, and
498:orders
494:Anopla
447:testes
439:gonads
424:mantle
367:ocelli
339:everts
309:phylum
275:Enopla
247:, 1851
7662:WoRMS
7605:57411
7587:IRMNG
7579:51280
7540:16153
7142:Plant
7094:Fungi
7014:CRuMs
5784:N+L+P
5492:Fungi
5389:phyla
5319:S2CID
5201:(PDF)
5176:(PDF)
4932:JSTOR
4903:S2CID
4797:S2CID
4758:3 Feb
4654:(PDF)
4637:(PDF)
3971:4 Feb
3693:S2CID
3545:(PDF)
3534:S2CID
3514:(PDF)
3028:S2CID
2921:Notes
2887:basal
2841:Most
2274:acoel
2190:clade
2166:basal
1616:clams
1550:Order
1541:Class
1480:Near
1447:clams
1416:, in
1404:, in
1384:genus
1359:, in
1351:, in
1330:mucus
1322:algae
1244:algae
1156:sperm
1093:slime
985:is a
983:brain
975:brain
890:blood
878:gills
806:class
740:. In
714:mucus
587:Doris
579:nymph
408:clams
391:slime
387:cilia
307:is a
194:Clade
181:Clade
168:Clade
7618:6217
7613:NCBI
7600:ITIS
7561:GBIF
7527:2855
7509:BOLD
7180:Moss
6672:life
6265:The
5615:The
5311:PMID
5264:PMID
5130:PMID
5122:ISSN
5072:PMID
5010:ISBN
4972:2011
4959:ISBN
4864:2011
4851:ISBN
4760:2011
4714:PMID
4611:PMID
4564:2011
4525:ISBN
4481:PMID
4428:2011
4415:ISBN
4392:2011
4379:ISBN
4350:ISBN
4322:PMID
4278:link
4258:ISBN
4222:link
4202:ISBN
4171:ISBN
4148:PMID
4105:ISBN
4067:link
4047:ISBN
4009:2011
3996:ISBN
3973:2011
3960:ISBN
3939:link
3919:ISBN
3829:link
3809:ISBN
3767:ISBN
3742:PMID
3660:2011
3647:ISBN
3626:2011
3613:ISBN
3579:2011
3566:ISBN
3496:2011
3483:ISBN
3462:2011
3449:ISBN
3427:2011
3383:ISBN
3358:ISBN
3316:link
3296:ISBN
3228:PMID
3185:PMID
3138:2011
3125:ISBN
3065:ISSN
2986:2011
2955:ISBN
2877:and
2861:and
2851:molt
2834:and
2284:and
2261:and
2235:taxa
2164:and
1812:The
1653:(s)
1641:and
1503:clam
1449:and
1289:Java
1200:taxa
1186:The
987:ring
969:The
835:, a
783:The
753:anus
701:and
659:and
650:The
585:and
463:taxa
410:and
348:host
325:anus
46:Preκ
7592:178
7522:EoL
7496:AFD
7483:ADW
6122:M+K
6014:R+M
5951:M+S
5820:L+P
5303:doi
5291:530
5254:PMC
5246:doi
5242:363
5190:doi
5112:doi
5062:PMC
5054:doi
5050:270
4895:doi
4824:doi
4787:doi
4704:PMC
4696:doi
4601:PMC
4591:doi
4471:PMC
4463:doi
4312:doi
4254:276
4138:doi
4097:doi
3915:279
3869:doi
3732:PMC
3724:doi
3685:doi
3526:doi
3218:doi
3175:PMC
3167:doi
3163:276
3098:doi
3057:doi
3020:doi
3008:606
2836:RNA
2832:DNA
1861:or
1805:of
1567:by
1367:at
1324:or
1320:of
1163:or
1154:or
1152:ova
1138:or
1084:in
469:of
445:or
430:.
319:or
311:of
273:(=
7686::
7664::
7651::
7638::
7615::
7602::
7589::
7576::
7566:63
7563::
7550::
7537::
7524::
7511::
7498::
7485::
7470::
7455::
5317:.
5309:.
5301:.
5289:.
5285:.
5262:.
5252:.
5240:.
5234:.
5218:^
5196:.
5186:35
5184:.
5178:.
5159:^
5128:.
5120:.
5108:42
5106:.
5100:.
5084:^
5070:.
5060:.
5048:.
5042:.
5024:^
5008:.
4980:^
4953:.
4928:47
4926:.
4901:.
4893:.
4883:71
4881:.
4820:43
4818:.
4795:.
4783:18
4781:.
4777:.
4746:.
4726:^
4712:.
4702:.
4694:.
4682:.
4678:.
4647:37
4645:.
4639:.
4609:.
4599:.
4587:13
4585:.
4581:.
4523:.
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