Anelassorhynchus sabinus   (Lanchester,  1905) (Marine Worm)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Echiura
Class: Echiuroidea
Order:Echiurida
Family:Echiuridae

Image copyrights: Red data book ehime

Description
Size: length 12 mm

The animal is small, with proboscis being one-third of the entire body. Persual of literature shows that the length of the proboscis varies from one-fourth to one-sixth of the trunk length. The proboscis shows the beginning of the formation of gill-like outgrowths. The skin covering the trunk is appreciably thin being transparent in places so as to make most of the internal organs except the nerve cord visible from outside. The body is covered with minute papillae. Ventral setae are two in number and placed just behind the proboscis and anterior to the nephridiopores.

Internally, the longitudinal muscle layer is not separated into bands. The nephridia are two pairs and small in size. Each nephridium is provided with a pair of long coiled filaments and its body is marked with constriction. The anal vesicles are short saccular structures which open laterally in the posterior limit of the rectum. There are minute sessile funnels on the vesicles.

Similar species: The specimen in general appearance looks like an immature Anelassorhynchus dendrorhynchus, but the difference lies in the structure of proboscis.



Synonym (s)
Thalassema sabinum Lanchester, 1905
Anelassorhynchus sabinus Haldar, 1978

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Benthic, Estuarine

Biogeography


• Andaman and Nicobar Islands, Andaman Islands (Lat: 10) (Long: 93) INDIA
• Gujarat, Pirotan Island INDIA
• Orissa, Barkuda Island INDIA (Record: 07/10/1972)
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Parangipettai INDIA
• Andaman and Nicobar Islands, Andamans INDIA

Literature Source(s)
  • Haldar, BP (1995) Sipuncula and Echiura Wetland ecosystem series 1: Fauna of Chilika lake ZSI, Calcutta 469-476 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
  • Red data book ehime Available at - http://www.pref.ehime.jp/030kenminkankyou/080shizenhogo/00004541040311/index.html

Page last updated on:2010-07-29

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