Ochetostoma palense   (Ikeda,  1924) (Marine Worm)
Organism information awaits expert curation
Class: Echiuroidea

Body light brown in color, pear shaped and measures 41 mm in length without the proboscis and 15 mm across the broadest part. The proboscis is grayish brown in color measuring 13 mm in length and 7 mm at the broadest part, its lateral margins meet ventral to the mouth. Body wall is moderately thick and covered with minute papillae. Two ventral hooks are small and brown in color with golden yellow tips. Genital pores are indistinguishable externally. Longitudinal muscles gather into 15 bands clearly seen in the anterior half of the trunk; there are fascicles between the longitudinal muscle bands.

Internally, the foregut is short. The neuro-intestinal vessel is stout and single throughout. Gonoducts 3 pairs, the first pair located anterior to the ventral hooks. The third pair is the largest measuring 14 mm in length. Gonostome basal, gonostomal lip drawn into a pair of long filaments. Anal vesicles are two long tubes, about 3/4th of the length of the trunk. A rectal caecum and interbasal muscle are absent.

Synonym (s)
Thalassema palense Ikeda, 1924
Ochetostoma palense Stephen & Edmonds, 1972

Common Name (s)
Economic Importance and Threats



• Lakshadweep, Kavaratti INDIA (Record: 3/1/1980)

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Haldar, BP and Dattagupta, AK (1991) Echiura State fauna series 2: Fauna of Lakshadweep ZSI, Calcutta 185-197 Available at - NIO, Goa

Page last updated on:2010-07-29

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