Ophionereis porrecta   Lyman,  1860 (Brittle Star)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Echinodermata
Class: Ophiuroidea
Order:Ophiurida
Family:Ophionereididae

Image copyrights: Tim O Hara, Museum Victoria

Description
Size: Diameter of the disc (d.d.)= Upto 15 mm.

Color: Disc grey with irregular dark markings, dark pattern more prominent in smaller specimens, arms mottled white and grey with dark spots, short spines white, ventrally off-white with grey blotches overall (Humphreys, 1981).

Disc covered by small imbricating plates, larger at the disc margin and between the radial shields. Radial shields small, longer and narrow, widely separated. Principal dorsal arm plates broader than long, proximal margin broader, distal margin narrower. Supplementary arm plates broader distally, as long as the segment. Oral shields longer than broad, with blunt tip on the proximal border. Adoral shields long, not meeting interradially. Oral plates with 5-6 papillae on each side. Ventral interradial disc with smaller imbricating plates and fine granule covering near the oral shields. Genital slits long, genital papillae present, proximal ones somewhat larger, not extending to the dorsal side. Arm spines three, the middle one longer and blunt.


Synonym (s)
Ophionereis porrecta Lyman, 1860
Ophionereis porrecta Clark and Rowe, 1917
Ophionereis aplacophora Murakami, 1943
Ophionereis crassipinna Ljungman, 1867
Ophionereis crassispina Ljungman, 1867
Ophionereis sophiae Brock, 1888

Common Name (s)
• Ophiuroids (English)
Economic Importance and Threats

Ecology
Habitat:  Benthic, Coastal

Biogeography


• Lakshadweep, off Kilttan Island INDIA (Depth: 55 - 91 mts)
• Andaman and Nicobar Islands, Port Blair INDIA
• INDIA

Literature Source(s)
  • Tikadar, BK; Daniel, A and Subbarao, NV (1986) Sea shore animals of Andaman and Nicobar Islands The Director, ZSI, Kolkatta 188 Available at - ZSI, Pune
  • (2001) Invertebrate zoology collections Available at - http://goode.si.edu/mcs/iz/Query.php
  • Sastry, DRK (2002) Echinodermata associated with coral reefs of Andaman and Nicobar Islands Zoological Survey of India ZSI 100(3-4) 21-60 Available at - ZSI, Pune
  • Nagabhushanam, AK and Krishnan, S (1993) Observations on the distribution of some of the marine organism inhabiting the inter-tidal zone along the western continental shelf of the Bay of Bengal, with particular reference to the Tamil Nadu coastal strip Records of the Zoological Survey of India 93(3-4) 449-490 Available at - ZSI, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Sastry, DRK (1991) Echinodermata: Asteroidea, Ophiuroidea and Echinoidea State fauna series 2: Fauna of Lakshadweep ZSI, Calcutta 363-397 Available at - NIO, Goa
  • James, DB. (1983) Sea cucumber and sea urchin resources and Beche-de-mer industry Mariculture potential of Andaman and Nicobar Islands-An indicative survey Bulletin of Central Marine Fisheries Institute CMFRI, Cochin 34 85-93 Available at - http://eprints.cmfri.org.in/809/1/Bulletin_No_34.pdf
  • Sastry, DRK (2007) Echinodermata of India : An annotated list Records of Zoological Survey of India Occassional paper No. 271 ZSI, Kolkata 1-387 Available at - http://zsi.gov.in/checklist/Echinodermata_India_Checklist.pdf
  • Sealifebase Available at - http://www.sealifebase.org/
  • The barcode of life data systems Biodiversity Institute of Ontario Available at - http://www.barcodinglife.org/index.php

Page last updated on:2011-09-08

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