Polybranchia orientalis   (Kelaart,  1858) (Sea Slug)
Organism information awaits expert curation
Class: Gastropoda

Color: Dull olive green.

The body is elongated with a somewhat flattened dorsal surface and angular dorso-lateral margins. The anterior tentacles are rather short, conical, folded on themselves and placed at the anterior extremity; the rhinophores are long, cylindrical longitudinally folded and deeply bifid at the free extremities; they are placed far forward, very close to the anterior pair. The cerata or branchial appendages, are numerous, large, ovate and leaf-like and are disposed throughout the entire dorsal surface of the animal; each of the cerata has a short, cylindrical peduncle and a large, foliaceous portion expanded into a flattened, ovate lamina with a slightly concave surface and minutely toothed margin; the surface shows vein-like radiating lines as in a leaf. The radula consists of a single row of 42 teeth; head is inclined downwards and expanded laterally; foot broad, elongate, slightly arched truncated in front but tapered to a fine point behind.

Synonym (s)
Proctonotus orientalis Kelaart, 1858

Common Name (s)
Economic Importance and Threats



• Tamil Nadu, Krusadai Island (Lat: 9.23) (Long: 79.22) INDIA
• Tamil Nadu, Shingle Island (Lat: 9.23) (Long: 79.23) INDIA

Literature Source(s)
  • Satyamurti, ST (1952) The Mollusca of Krusadai island in the Gulf of Mannar I- Amphineura and Gastropoda Bulletin of the Madras Government 1(2) 265 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org

Page last updated on:2013-02-20

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