466:
450:
434:
33:
288:. The arms have numerous finger-like appendages known as pinnules, in order to increase the surface area on which food can be trapped. The mouth is on the upper side of the large, thick body, otherwise known as the centrodorsal. Attached to the centrodorsal are many long, robust
300:
by cirri, and once mature, they can break the stalk and become free-living. Once they are free-living, however, they still use these cirri to elevate themselves to put themselves in a better position to trap food. Because these cirri are so long and robust, the posture of
309:
is diurnally active, meaning it is active during the day, unlike many other species of crinoids. The color of this species is quite variable, ranging from yellow to brown and purple. The tips of the pinnules are often more brightly colored than the arms and centrodorsal.
357:
prefers to inhabit exposed coral heads, and is rheophilic, meaning it prefers to live where currents flow more strongly. This positioning ensures that more food floats past the star, therefore increasing nutrient uptake.
397:, meaning that the polychaete worms benefit greatly from the feather star, as it provides shelter, protection, and food, and there is little to no negative effect on A. bennetti. Individuals of the species
276:, meaning it does not hunt down food, it captures food suspended in the water column to eat. It does this with 31–120 feathery arms, usually held up into the water in order to trap food, feeding on
630:
Britayev, Temir A.; Doignon, Gilles; Eeckhaut, Igor (1999). "Symbiotic polycheates from Papua New Guinea associated with echinoderms, with descriptions of three new species".
296:
to hold on to substrate in the beginning portion of their lives, after the larvae settle out of the water column. They begin their lives attached to a stalk, held onto a
826:
749:
649:
Britayev, Temir A.; Mekhova, Elena S. (2 August 2011). "Assessment of hidden diversity of crinoids and their symbionts in the Bay of
Nhatrang, Vietnam".
813:
723:
353:. It is most commonly found between 5 and 25 meters depth, but there is a less common deep water variety that lives between 15 and 45 meters depth.
421:
species on only 18 individuals, meaning that these feather stars serve as excellent shelters for smaller animals looking for protection and food.
872:
839:
772:
32:
566:"An annotated checklist and key to the Crinoidea of Guam and the Commonwealth of the Northern Marianas Islands"
547:"An annotated checklist and key to the Crinoidea of Guam and the Commonwealth of the Northern Marianas Islands"
513:"An annotated checklist and key to the Crinoidea of Guam and the Commonwealth of the Northern Marianas Islands"
465:
449:
433:
678:
94:
152:
867:
844:
777:
497:
413:, with an average of 2–4 worms per individual star, as competition between these worms is fierce. In
322:
385:. These larvae settle after a few days, where they begin to produce their stalk and start to grow.
297:
612:
174:
47:
530:
Venkataraman, Krishnamoorthy; Ragunathan, C.; Sadhukhan, Koushik; Mondal, Tamal (January 2011).
831:
754:
130:
710:
587:
583:
764:
658:
410:
390:
381:
into the water column. Sperm will fertilize eggs, which will hatch to produce free-swimming
334:
289:
373:, meaning it has both female and male individuals. Reproduction occurs when some of the
861:
565:
546:
512:
326:
281:
273:
70:
715:
394:
254:
804:
736:
473:
457:
441:
285:
269:
250:
118:
701:
662:
498:"WoRMS - World Register of Marine Species - Anneissia bennetti (Müller, 1841)"
370:
106:
350:
342:
82:
389:
has been observed having a symbiotic relationship with various species of
798:
695:
418:
374:
330:
277:
818:
728:
414:
378:
246:
741:
382:
58:
672:
464:
448:
432:
338:
305:
can be used to easily distinguish it from other similar species.
346:
676:
534:. Director Zoological Survey of India Kolkata India.
788:
685:
564:Kirkendale, Lisa; Messing, Charles (January 2003).
545:Kirkendale, Lisa; Messing, Charles (January 2003).
511:Kirkendale, Lisa; Messing, Charles (January 2003).
257:between northern Australia and southeast Asia.
532:Common Crinoids of Andaman and Nicobar Islands
8:
613:"Anneissia bennetti, Bennett's feather star"
417:, these stars were found with a total of 11
673:
393:. This relationship has been described as
20:
595:Records of the Western Australian Museum
489:
253:. It is found in shallow water in the
7:
292:(3-4.5 cm). These cirri are used by
651:Organisms Diversity & Evolution
14:
588:"Echinoderms of Christmas Island"
268:is one of the larger species of
31:
272:, growing up to 30 cm. It is a
220:Comanthus (Comanthus) bennetti
1:
214:Comanthus (Cenolia) bennetti
889:
632:Cahiers de Biologie Marine
873:Animals described in 1841
663:10.1007/s13127-011-0053-3
180:
173:
158:
151:
48:Scientific classification
46:
39:
30:
23:
399:Hololepidella laingensis
314:Distribution and habitat
249:belonging to the family
476:
460:
444:
243:Bennett's feather star
190:Actinometra brachymera
687:Oxycomanthus bennetti
468:
452:
436:
403:Paradyte crinoidicola
362:Biology and symbiosis
321:is widespread in the
202:Oxycomanthus bennetti
16:Species of echinoderm
184:Actinometra bennetti
617:www.sealifebase.org
405:have been found on
477:
470:Anneissia bennetti
461:
454:Anneissia bennetti
445:
438:Anneissia bennetti
266:Anneissia bennetti
245:, is a species of
238:Anneissia bennetti
226:Comanthus bennetti
162:Anneissia bennetti
41:Anneissia bennetti
25:Anneissia bennetti
855:
854:
679:Taxon identifiers
481:
480:
377:burst, releasing
323:Indo-West Pacific
234:
233:
880:
848:
847:
835:
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494:
429:
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411:Papua New Guinea
391:polychaete worms
335:Marshall Islands
208:Cenolia bennetti
164:
144:A. bennetti
35:
21:
888:
887:
883:
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881:
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877:
858:
857:
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790:Alecto bennetti
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584:Marsh, Loisette
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196:Alecto bennetti
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109:
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17:
12:
11:
5:
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657:(4): 275–285.
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395:commensalistic
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228:(Müller, 1841)
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327:Bay of Bengal
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282:phytoplankton
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274:filter-feeder
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153:Binomial name
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71:Echinodermata
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255:Indo-Pacific
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204:Müller, 1841
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198:Müller, 1841
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40:
24:
18:
868:Comatulidae
737:iNaturalist
570:Micronesica
551:Micronesica
517:Micronesica
474:Philippines
458:Philippines
442:Philippines
407:A. bennetti
387:A. bennetti
367:A. bennetti
355:A. bennetti
319:A. bennetti
307:A. bennetti
303:A. bennetti
294:A. bennetti
286:zooplankton
270:Comatulidae
261:Description
251:Comatulidae
119:Comatulidae
862:Categories
638:: 359–374.
484:References
371:gonochoric
107:Comatulida
95:Articulata
90:Subclass:
805:Q51154996
601:: 97–101.
351:Indonesia
343:Australia
337:and from
298:substrate
138:Species:
131:Anneissia
83:Crinoidea
54:Kingdom:
832:10920180
799:Wikidata
755:10528017
702:Q7115914
696:Wikidata
586:(2000).
419:symbiont
375:pinnules
331:Maldives
278:detritus
175:Synonyms
114:Family:
66:Phylum:
59:Animalia
819:5721022
765:6663705
729:4340996
425:Gallery
415:Vietnam
379:gametes
333:to the
325:, from
247:crinoid
126:Genus:
102:Order:
78:Class:
845:393511
778:246787
762:uBio:
742:155020
383:larvae
241:, the
840:WoRMS
827:IRMNG
773:WoRMS
750:IRMNG
716:8GFD7
591:(PDF)
339:China
290:cirri
814:GBIF
724:GBIF
401:and
349:and
347:Bali
329:and
284:and
711:CoL
659:doi
472:in
456:in
440:in
409:in
369:is
341:to
864::
842::
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816::
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752::
739::
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655:11
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597:.
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568:.
549:.
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345:,
280:,
665:.
661::
619:.
572:.
553:.
519:.
500:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
