International Journal of Oceanography and Marine Ecological System2224-249xAsian Network for Scientific Information10.3923/ijomes.2012.50.59SreerajC.R. SivaperumanC. RaghunathanC. 2201212Opisthobranchs are marine gastropod mollusks, which are noted for their often extraordinary colors and striking forms. Opisthobranchs are the least studied group of mollusks from Andaman and Nicobar Islands and also in Indian waters. The taxonomy and ecology of these animals of these Islands recently received attention after about a century. The present study deals with 10 species of opisthobranchs, belonging to 8 families. Of these six species such as, Chelidonura pallida, Odontoglaja guamensis, Elysia leucolegnote, Thuridilla albopustulosa, Costasiella paweli and Bornella anguilla are reported for the first time from Indian waters.]]>Alder, J. and A. Hancock,1864Nudibranchiate mollusca made in India by Walter Eliot Esq. with descriptions of several new genera and species.]]>5113147ANDFISH,20062006Apte, D.,2009106162175Apte, D., V. Bhave and D. Parasharya,20101071423Belford, S. and D. Phillip,20114520531Bouchet, P. and J.P. Rocroi,2005471397Eghtesadi-Araghi, P.,201164856Eliot, C.,19105247252Fontana, A., M.L. Ciavatta, L. D'Souza, E. Mollo and C.G. Naikk et al.,200181403415Ganesapandian, S., S. Manikandan and A.K. Kumaraguru,20115471478Gardiner, J.S.,19032pp: 1-1080pp: 1-1080Gosliner, T.M.,1995Opisthobranchia: Elysiidae) from the tropical Indo-Pacific, with a revision of the phylogeny and systematics of the Elysiidae.]]>49154Gosliner, T.M., D.W. Behrens and A. Valdes,20082008Jensen, K.R.,1990Mollusca, Opisthobranchia) from Hong Kong and a description of the internal anatomy of Costasiella pallida Jensen, 1985.]]>1990pp: 419432Jensen, K.R.,200922207223Kathiresan, K. and N.M. Alikunhi,20111122Kelaart, E.F.,1858384139Kelaart, E.F.,18593291304Manikandan, S., S. Ganesapandian, M. Singh and A.K. Kumaraguru,2011108085Matwal, M. and D. Joshi,2011Phyllidiella zeylanica (Mollusca: Gastropoda: Opisthobranchia) after 42 years from Gujarat, India.]]>319511954Ramakrishna, C. Raghunathan and C. Sivaperuman,20102010pp: 283-288pp: 283-288Ramakrishna, C.R., C. Sreeraj, C. Raghunathan, J.S. Sivaperuman and Y. Kumar et al.,2010pp: 1-196pp: 1-196Gupta, S. and R.K. Sharma,20114575590Kumar, S.S.,20022739741Smith, E.A.,187810804821Sreeraj, C.R., P.T. Rajan, R. Raghuraman, C. Raghunathan, R. Rajkumar, T. Immanuel and Ramakrishna,20102010pp: 289-298pp: 289-298Swennen, C.,2011Elysia species in Asia, with descriptions of two new species (Gastropoda: Opistobranchia: Sacoglossa).]]>592937Valavi, H., A. Savari, V. Yavari, P. Kochanian, A. Safahieh and O. Sedighi,201057081Valavi, H., A. Savari, V. Yavari, P. Kochanian, A. Safahieh and O. Sedighi,20104237249ZSI,20092009