Prionospio krusadensis   Fauvel,  1929 (Marine Worm)
Organism information awaits expert curation
Class: Polychaeta

Size: Length 20 mm. by 0.7-0.8 mm.

Color: Yellowish in preserved specimen.

Body slender, filiform, slightly enlarged anteriorly. Prostomium, long, conical, with a blunt ridge running to the 2nd segment. A low lateral fold, which does not form a marked wing, on each side of the prostomium. Two clusters of 4-5 small eyes. First setigerous segment with both rami obsolete and only dorsal setae. Branchiae three pairs, on the second, third and fourth setigerous segments; they are all pinnate, the third pair often smaller. On the anterior segments, the dorsal lamellae are large, oval, or sub-triangular, the 5-6 first ones sub-equal, the 4th often larger. The following lamellae are lower, more rounded or heart-shaped, gradually decreasing in size, but still conspicuous to the end of the body. Ventral lamellae smaller, at first oval, next rounded and then very small. No noteworthy transverse ridges. In the anterior region dorsal and ventral setae long and capillary. In 3-4 segments, from the 10th setigerous, on the ventral ramus a large golden seta, curved and dotted. From the 17th-18th setigerous segment ventral hooks with 3 teeth above the main fang. Dorsal hooks from the 40th-42nd setigerous segment. There are no genital pouches. A median anal cirrus and two very small others.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Maharashtra, Ratnagiri (Lat: 17.01) (Long: 73.25) INDIA (Record: 01/2006)
• Tamil Nadu, Gulf of Mannar INDIA

Literature Source(s)
  • Ingole, B; Sivadas, S; Nanajkar, M; Sautya, S and Nag, A (2008) A comparative study of macrobenthic community from harbours along the central west coast of India Environmental Monitoring and Assessment Springer 154(1-4) 135-146 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Fauvel, P (1953) The fauna of India including Pakistan, Ceylon, Burma and Malaya: Annelida, Polychaeta The Indian press ltd., Allahabad 507 pp Available at - NIO, Goa

Page last updated on:2011-03-24

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