Colobometra perspinosa
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Colobometra perspinosa is a species of echinoderm known by the common name black feather star.
The black feather star is widespread throughout the tropical waters of the central Indo-Pacific region.[1] This feather star is often clinged to gorgonians, exposed their open arms to the marine flow to optimise the nutriment capture.
Its maximal diameter is 30 cm (12 in) for ten arms maximum.[2] Its coloration is usually black but it can also be black and white, and even brown-gold for rare specimen.
References
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Colobometra perspinosa: Brief Summary
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Colobometra perspinosa is a species of echinoderm known by the common name black feather star.
The black feather star is widespread throughout the tropical waters of the central Indo-Pacific region. This feather star is often clinged to gorgonians, exposed their open arms to the marine flow to optimise the nutriment capture.
Its maximal diameter is 30 cm (12 in) for ten arms maximum. Its coloration is usually black but it can also be black and white, and even brown-gold for rare specimen.
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Colobometra perspinosa
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Colobometra perspinosa • Comatule noire
Colobometra perspinosa, communément nommé Comatule noire, est une espèce d'échinodermes de la famille des Colobometridae.
Description
Son diamètre maximal est de 30 cm pour dix bras maximum[1], longs, très larges et d'aspect plumeux. Sa coloration habituelle est noire toutefois certains spécimens peuvent être noirs et blancs et plus rarement être d'aspect brun doré (« var. vepretum »). Le tegmen peut être blanc ou jaunâtre[2].
Les cirrhes portent 35-65 segments, la P2 est à peine plus longue que la P1 (ce qui la distingue du genre Oligometra)[2].
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Gros-plan sur le disque central et les pinnules.
Habitat et répartition
La Comatule noire est présente dans les eaux tropicales de la zone centrale de la région Indo-Pacifique, notamment en Papouasie-Nouvelle-Guinée[3]. On la rencontre à des profondeurs allant de 8 à 25 m[3]. Cette comatule est souvent accrochée sur les gorgones exposées aux courants afin d'optimiser la capture de sa nourriture convoyée par le flot.
Références taxinomiques
Notes et références
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Colobometra perspinosa: Brief Summary
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Colobometra perspinosa • Comatule noire
Colobometra perspinosa, communément nommé Comatule noire, est une espèce d'échinodermes de la famille des Colobometridae.
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Colobometra perspinosa
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Diagnosis
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Colobometra having very long cirri of ~60 (53-65) cirrals; longest cirrals with L/W ratio 1.33; P3 slightly larger than P2; following pinnules to P6-P8 similar, decreasing slightly in length; arms 120-150 mm long.
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Distribution
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Fiji; Lord Howe Island; Port Denison, QLD, Australia, N to Jobi Island, Papua New Guinea; off Pulau Gebe between Halmahera and Pulau Waigeo, and W to the Paternoster Is., N of Pulau Sumbawa, Indonesia; (C. p. verpretum) Philippines to Singapore S t; Depth range : Shoreline to 31 (?36) m
Clark, A. H. (1947) A monograph of the existing crinoids. 1(4b). Bulletin of the United States National Museum 82:1-473, 43 pls.
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Distribution
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Madang, Papua New Guinea; northern/central Sulu Sea, Philippines; Chuuk Atoll
Messing CG (1998) An initial re-assessment of the distribution and diversity of the East Indian shallow-water crinoid fauna. Pp. 187-192. IN: Mooi, R. & Telford, M. (eds.) Echinoderms: San Francisco. Balkema, Rotterdam.
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Distribution
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On sheltered and exposed fringing, lagoonal patch and outer barrier reef slopes, Madang, Papua New Guinea ; Depth range : 8 to at least 25 m
Messing CG (unpublished data)
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Distribution
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Port Hedland, WA, to Port Jackson, NSW; Lord Howe I., Tasman Sea; Australia; Philippines, Indonesia, Fiji; Depth range: 0-122 m
Rowe, F. W. E.; Gates, J. (1995). Echinodermata. In ‘Zoological Catalogue of Australia'. 33 (Ed A. Wells.) pp xiii + 510 (CSIRO Australia, Melbourne).
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Distribution
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Kerama Is., Okinawa Prefecture, Japan; Depth range: ?
Kogo I (1998) Crinoids from Japan and its adjacent waters. Special Publications from Osaka Museum of Natural History 30:1-148.
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