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New Records of Opisthobranch Fauna (Mollusca: Heterobranchia) from Andaman & Nicobar Islands, India


  • Bombay Natural History Society, Hornbill House, Shaheed Bhagat Singh Road, Mumbai 400 001, Maharashtra, India
  • Reef Watch Marine Conservation, Bandra (W), Mumbai 400 050, Maharashtra, India


The present study was carried out over two years between 2013 and 2015 along the Andaman&Nicobar Islands, and yielded 128 species, of which 30 species are new records to Indian waters. Aglajidae, Actinocyclidae, and Dendrodorididae is represented by 1 species each; Chromodorididae - 17 species, Discodorididae and Polyceridae - 3 species each, and Facelinidae - 4 species. Deeper waters between 25 and 40 m still remain relatively unexplored over vast territory in India in general and Andaman&Nicobar Islands in particular. Thus, more focused studies from these depths may reveal many more undocumented opisthobranch fauna.


India, Andaman, Nicobar, Nudibranchia, Opisthobranch, Sea Slugs.

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