37:
277:
seventh segment is then the shortest one with a length of 0.5 mm. Narrow plates called epimerae are separated along the last segments on the thorax. In the last segments, the epimera is capable of fully extending across the segment. The terminal thorax is at the posterior and it is about 4 mm wide and 3.5 mm long.
196:
281:
215:
is oblong/oval-shaped, typical of the vaulted body shape expected from its genus. On average, the body length is around 16 mm, while the body width is around 7 mm. In general, the body length is slightly more than twice its body width. Due to the slightly shorter body length on the right
276:
spp. It is made up of eight segments, where the first segment with the head embedded into it, is the largest, with an approximate size of 2 mm in length. Both second and third segments are equal in length around 1.5 mm. The fourth, fifth, and sixth segments are all 1 mm in length. The
379:
feeds on the blood and tissue of the host fish. To ensure secure attachment to the host, the isopod uses seven pairs of sharply hooked legs and its specialized mouthpart. Due to the loss of blood for the host fish, the parasitic behavior of E.
831:"The Genera Catoessa, Elthusa, Enispa, Ichthyoxenus, Idusa, Livoneca, and Norileca n.gen. (Isopoda, Cymothoidae), Crustacean Parasites of Marine Fishes, with Descriptions of Eastern Australian Species"
635:"The genera Catoessa, Elthusa, Enispa, Ichthyoxenus, Idusa, Livoneca and Norileca n.gen. (Isopoda, Cymothoidae), crustacean parasites of marine fishes, with descriptions of eastern Australian species"
395:
The species has an ecological preference, selecting hosts that live in the benthic or that belong to a demersal school. Due to its smaller body size and less complex body structure compared to
513:"Review of the fish parasitic genus Elthusa Schioedte & Meinert, 1884 (Crustacea, Isopoda, Cymothoidae) from South Africa, including the description of three new species"
610:
960:
614:
986:
316:
is commonly found on the shores of
California, near San Francisco, hence its species name. It is also distributed along the Pacific Coast from Canada to Peru.
363:
224:
247:. Two large, oval eyes sit on the postlateral angles on the head. The eyes are set apart by about the width of one eye, making them rather close-set.
934:
973:
729:
Gamble, Mason; Smith, Madelyn; Chi, Yvonne (July 2013). "Cymothoid Isopod
Parasitism of Fishes in Campbell Cove, Bodega Bay, California, U.S.A".
1071:
999:
586:
1038:
978:
427:
359:. Once it finds a suitable host, it attaches inside the opercular cavity of the gill chamber, making a protruding shape.
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in host fish may subject them to lower levels of vitality when encountering a decrease in the seawater salinity.
240:
36:
195:
399:, it is regarded as a good indicator for environmental change such as those caused by pollution or climate.
863:
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131:
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is about 2 mm wide. It is triangular and has a strong and blunt outline on the anterior end. The
1043:
921:
355:
250:
On the head, two pairs of antennae may be found. Each pair is made up of eight or nine articles. The
223:
1066:
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is capable of cross-fertilizing and hybridizing with other species of the same genus, such as the
1030:
830:
806:
754:
604:
344:
340:
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258:. The antennule is slender and weak and extends to the seventh article on the other larger pair.
31:
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is believed to be relatively harmless for the host fish, as its activity usually is not fatal.
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The Light and Smith manual : intertidal invertebrates from central
California to Oregon
538:
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243:
posterior margin is not trilobed, once again typical characteristic of organisms found in
543:
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and has been found on many reported host species, including the actinopterygian fishes
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legs are capable of grasping objects. They also have long and slender dactyli.
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is the shorter pair compared to the longer antenna and is shorter than all the
525:
396:
802:
750:
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68:
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is as wide as its length, which fits the typical description of the genus.
900:
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a) Maxilliped. b) Second maxilla. c) First maxilla. d) Palp of mandible
255:
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van der Wal, Serita; Smit, Nico J.; Hadfield, Kerry A. (2019-04-23).
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is thought to influence the host growth process. The presence of
301:
In juveniles, the color pigment granules are concentrated in the
1004:
697:
Monographs on the
Isopods of North America / by Harriet Richards
926:
861:
272:
has palps made up by three articles. The thorax is typical for
178:
is a saltwater parasitic isopod. Like many species of the
781:
Keys, Ancel B. (May 1928). "Ectoparasites and
Vitality".
305:, thus giving its lack of distinct pattern appearance.
870:
192:genus, but later underwent taxonomic revisions.
8:
609:: CS1 maint: multiple names: authors list (
858:
613:) CS1 maint: numeric names: authors list (
20:
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436:Integrated Taxonomic Information System
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577:Light, Sol Felty, 1886-1947. (2007).
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309:Distribution, habitat, and behaviour
268:composed of two articles, while the
581:. University of California Press.
14:
838:Records of the Australian Museum
699:. Washington: Govt. print. off.
639:Records of the Australian Museum
220:, the body is slightly twisted.
35:
850:10.3853/j.0067-1975.42.1990.118
652:10.3853/j.0067-1975.42.1990.118
188:was first placed in within the
147:(Schioedte & Meinert, 1884)
1:
1072:Crustaceans described in 1884
695:Richardson, Harriet. (1905).
633:Bruce, Niel L. (1990-11-16).
1088:
526:10.3897/zookeys.841.32364
375:Inside the gill chamber,
199:Sketch of a female adult
137:
130:
32:Scientific classification
30:
23:
731:Comparative Parasitology
231:, lateral view of thorax
829:Bruce, Niel L. (1990).
783:The American Naturalist
705:10.5962/bhl.title.1031
372:
329:Cymatogaster aggregate
294:In adult females, the
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232:
207:Anatomy and morphology
203:
365:
349:Oligocottus maculosus
283:
226:
198:
16:Species of crustacean
488:species Information"
356:Fundulus parvipinnis
872:Elthusa californica
486:Elthusa californica
458:Elthusa californica
430:Elthusa californica
156:Elthusa californica
141:Elthusa californica
123:E. californica
25:Elthusa californica
373:
345:Clinocottus analis
341:Artedius lateralis
335:Atherinops affinis
286:
233:
204:
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1053:
1013:Open Tree of Life
864:Taxon identifiers
588:978-0-520-23939-5
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789:(680): 279–282.
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351:, S. marmoratus,
256:pleopod lamellae
227:a) Adult female
159:is a species of
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366:Seventh leg of
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201:E. californica.
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844:(3): 247–300.
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795:10.1086/280205
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737:(2): 247–250.
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666:
645:(3): 247–300.
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404:E. californica
390:E. californica
386:E. californica
377:E. californica
368:E. californica
320:E. californica
314:E. californica
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289:E. californica
262:E. californica
237:E. californica
229:E. californica
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213:E. californica
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163:in the family
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519:(841): 1–37.
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167:of the order
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132:Binomial name
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495:. Retrieved
492:BugGuide.net
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303:melanophores
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235:The head of
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79:Malacostraca
24:
18:
1026:SeaLifeBase
948:iNaturalist
408:E. vulgaris
382:californica
266:maxillipeds
176:californica
165:Cymothoidae
99:Cymothoidae
1067:Cymothoida
1061:Categories
497:2019-09-23
469:2019-09-23
441:2019-09-23
414:References
296:pleotelson
69:Arthropoda
803:0003-0147
751:1525-2647
661:0067-1975
605:cite book
597:228783185
535:1313-2970
252:antennule
216:side of
117:Species:
55:Kingdom:
49:Eukaryota
966:11307090
896:BugGuide
887:Q2236773
881:Wikidata
811:84819183
759:86187462
553:31097912
402:Lastly,
270:mandible
241:cephalon
190:Liveneca
95:Family:
65:Phylum:
59:Animalia
45:Domain:
1018:2997486
992:2172690
940:2210459
901:1200366
544:6491414
517:ZooKeys
432:Report"
274:Elthusa
245:Elthusa
181:Elthusa
169:Isopoda
110:Elthusa
105:Genus:
89:Isopoda
85:Order:
75:Class:
1044:256781
1005:256781
979:544221
953:489794
927:347898
809:
801:
757:
749:
659:
595:
585:
551:
541:
533:
322:is an
184:genus,
161:isopod
1039:WoRMS
1031:11697
961:IRMNG
914:39DBN
834:(PDF)
807:S2CID
755:S2CID
1000:OBIS
987:NCBI
974:ITIS
935:GBIF
799:ISSN
747:ISSN
657:ISSN
615:link
611:link
593:OCLC
583:ISBN
549:PMID
531:ISSN
464:GBIF
353:and
332:and
264:has
922:EoL
909:CoL
846:doi
791:doi
739:doi
701:doi
647:doi
539:PMC
521:doi
1063::
1041::
1028::
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1002::
989::
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898::
883::
842:42
840:.
836:.
805:.
797:.
787:62
785:.
767:^
753:.
745:.
735:80
733:.
713:^
669:^
655:.
643:42
641:.
637:.
623:^
607:}}
603:{{
591:.
561:^
547:.
537:.
529:.
515:.
490:.
462:.
434:.
410:.
347:,
343:,
338:,
173:E.
171:.
852:.
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663:.
649::
617:)
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555:.
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484:"
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444:.
428:"
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
