A new record of Opisthobranch, Tayuva lilacina (Gould, 1852) and notes on Euselenops luniceps (Cuvier, 1816) from the Andaman Sea, India Author Rajendra, S Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata, West Bengal - 700 053, India rajenzsi1992@gmail.com Author Nigam, N K Zoological Survey of India, Andaman and Nicobar Regional Centre, Port Blair, Andaman and Nicobar Islands - 744 102, India * [E-mail: rajenzsi 1992 @ gmail. com] Author Sivaperuman, C Zoological Survey of India, Andaman and Nicobar Regional Centre, Port Blair, Andaman and Nicobar Islands - 744 102, India * [E-mail: rajenzsi 1992 @ gmail. com] text Indian Journal of Geo Marine Sciences 2022 2022-10-31 51 10 850 853 https://www.mendeley.com/catalogue/748fb58d-7986-3589-b078-8aa04610dec0/ journal article 298466 10.56042/ijms.v51i10.2934 87c6b93e-236b-4656-9854-c01cfe8fded3 2582-6727 11622315 1. Euselenops luniceps (Cuvier, 1816) One example, Durgapur (Lat: 12°29.293′ N ; Long: 92°57.167′ E ), North Andaman , 30.05.2018 ; depth range 5 m , size 75 mm , registration number ZSI/ANRC-22089. One example Nimbutala (Lat: 12°29.293′ N ; Long: 92°57.167′ E ), Middle Andaman , 25.12.2018 ; depth range 5 – 7 m , size 70 mm , registration number ZSI/ANRC-22085. Fig. 1 — Map showing the study area and specimen collection sites from the Andaman Sea Diagnosis: Body flattened, wide rounded in shape, and large veil, fringed with sensory papillae. Foot considerably larger than the mantle region. Posteriorly, the mantle folds into a relatively long siphon or tube, allowing the mantle cavity and gills to remain in contact with seawater while living in the sand. The whitecolored body is abundantly dotted with deep brown spots ( Fig. 2a & b ). The colour blends with the surroundings and intimidates the predators, demonstrating no succulence with the help of bright colors. In disturbed conditions quickly disappear under the sand and camouflage making it difficult to sight. It can swim short distances. Status : Very rare. Ecology : One specimen is found on the sandy region (seagrass area) up to 5 m (Durgapur, Fig. 2a ) and the second specimen was found on sand and silty region of mangrove habitat (Nimbutala, Fig. 2b ). Geographical distribution : India - Gulf of Mannar, Lakshadweep 5 , and Andaman and Nicobar Islands 9 ; and elsewhere - Philippines to Australia , Fiji , Hawaii, tropical Indo-West Pacific. Also known from the South Africa and Tanzania 4 .