Oriopsis coalescens   Banse,  1959 (Marine Worm)
Organism information awaits expert curation
Class: Polychaeta

Size: 2.5mm length including the length of the tentacular crown of 0.7 mm.

The tentacular crown makes up for 1/4th to 1/3th of the total length of the animals. On each side of the crown, there are 4 limbate radioli with 5-7 pairs of pinnulae, a ventral filament of half the length of the tentacular crown, and a ventral lip. The pinnulae end at about the same level as the radioli beyond the origin of the distal pair of pinnulae.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated, Sandy, Coastal


• Tamil Nadu, Mandapam INDIA (Depth: 0.5-2 mts)
• Tamil Nadu, Gulf of Mannar INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Banse K (1959) On marine Polychaeta from Mandapam (South India) Journal of the Marine Biological Association Of India Marine Biological Association of India, Cochin, India 1(2) 165-177 Available at - http://eprints.cmfri.org.in/1398/1/Karl_Banse_165-177.pdf

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