Abstract
Sunderban Biosphere Reserve (SBR) is the largest existing mangrove ecosystem in the world harbouring 177 species of Mollusca. During several surveys in Sunderban Biosphere Reserve to record the faunal diversity, five molluscan species, namely Dosinia tumida (Gray, 1838), Babylonia spirata (Linnaeus, 1758), Babylonia zeylanica (Bruguière, 1789), Indothais gradata (Jonas, 1846), Architectonica perdix (Hinds, 1844) have been identified as new records from the region. Also, D. tumida and B. zeylanica have been identified as new for the faunal diversity of West Bengal. Another one, I. gradata is being recorded from India by this communication for the first time. The recorded molluscan diversity from Indian Sunderban and these present findings imply that malacofaunal study from SBR need to be reassessed for an updated malacofaunal diversity status for implementing better conservation tactics in SBR.
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