Polyclinum indicum   Sebastian,  1952 (Sea Squirt)
Organism information awaits expert curation
Class: Ascidiacea

Color: Sandy, transparent

Size: Colony 5.08-6.35 cm in diameter, 3.81-5 cm in height

Compound ascidian, zooids embedded within a common test. Outer surface is with a thin layer of sand. Colony is oval to umbrella-shaped.Test is transluscent with a slight tinge of green or red. Mantle is transparent with 6 pairs of longitudinal muscle bands of different sizes. Zooids are large with thorax, abdomen and post-abdomen. Tentacles are simple. Stomach is smooth-walled. Post-abdomen contains epicardium, gonads and slantingly placed heart.

Synonym (s)

Common Name (s)
• Tunicates (English)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Tamil Nadu, Chennai Coast INDIA
• Tamil Nadu, Iranyanvalasai INDIA
• Kerala, Vizhinjam Bay INDIA
• Tamil Nadu, Kooduthalai INDIA
• Tamil Nadu, Kulasekarapattinam INDIA
• Tamil Nadu, Alanthalai INDIA
• Tamil Nadu, Tiruchendur INDIA
• Tamil Nadu, Tuticorin INDIA
• Tamil Nadu, Vellapatti INDIA
• Tamil Nadu, Mandapam INDIA
• Tamil Nadu, Thoppuvalasai INDIA
• Tamil Nadu, Krishnapuram INDIA
• Tamil Nadu, Thirupalakudi INDIA
• Kerala, Vizhinjam Fishing Harbour INDIA
• Tamil Nadu, Tuticorin (Lat: 8.75) (Long: 78.20) INDIA (Record: 2002-2003)

Literature Source(s)
  • (2001) Invertebrate zoology collections Available at - http://goode.si.edu/mcs/iz/Query.php
  • Sebastian, VO and Kunian, CV (1981) Classification of Ascidians 1-163 Available at - NIO, Goa
  • Nagabhushanam, AK and Krishnan, S (1993) Observations on the distribution of some of the marine organism inhabiting the inter-tidal zone along the western continental shelf of the Bay of Bengal, with particular reference to the Tamil Nadu coastal strip Records of the Zoological Survey of India 93(3-4) 449-490 Available at - ZSI, Pune
  • Sebastian, VO and Kurian, CV (1981) Indian Ascidians Mohan Primlani, Oxford & IBH Publishing Co., New Delhi 153 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
  • Abdul, JAH and Sivakumar, V (2007) Occurrence and distribution of ascidians in Vizhinjam Bay (south west coast of India) Journal of Experimental Marine Biology and Ecology 342(1) 189-190 Available at - http://dx.doi.org/10.1016/j.jembe.2006.10.041
  • Meenakshi, VK; Renganathan, TK; Senthamarai, S and Jeyalakshmi, J (2003) Marine biodiversity - Taxonomy of Indian Ascidians Technical report Available at - Biodiversity Informatics Group, NIO, Goa
  • Jaffar Ali, AH; Sivakumar, V and Tamilselvi, M (2009) Distribution of Alien and Cryptogenic Ascidians along the Southern Coasts of Indian Peninsula World Journal of Fish and Marine Sciences IDOSI Publications 1(4) 305-312 Available at - http://www.idosi.org/wjfms/wjfms1%284%2909/9.pdf

Page last updated on:2011-02-01

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