On the Polyclads from the Gulf of Mannar Biosphere Reserve with new records Author Padmanaban, P. Zoological Survey of India, Marine Biology Regional Centre, 130, Santhome High Road, Pattinapakkam, Mylapore, Chennai - 600004, Tamil Nadu, India; Email: padmazsi @ rediffmail. com Author Kumar, A. Anand Zoological Survey of India, Marine Aquarium and Regional Centre, SH 57, Gadadharpur, Digha - 721428, West Bengal, India Author Kumar, R. Rajendar Zoological Survey of India, Marine Biology Regional Centre, 130, Santhome High Road, Pattinapakkam, Mylapore, Chennai - 600004, Tamil Nadu, India; Email: padmazsi @ rediffmail. com Author Surendar, C. Zoological Survey of India, Marine Biology Regional Centre, 130, Santhome High Road, Pattinapakkam, Mylapore, Chennai - 600004, Tamil Nadu, India; Email: padmazsi @ rediffmail. com Author Vanishree, J. Zoological Survey of India, Marine Biology Regional Centre, 130, Santhome High Road, Pattinapakkam, Mylapore, Chennai - 600004, Tamil Nadu, India; Email: padmazsi @ rediffmail. com text Records of the Zoological Survey of India 2020 120 4 445 453 journal article 10.26515/rzsi/v120/i4/2020/148695 2581-8686 13186419 7. Pseudoceros galatheensis Dixit, Raghunathan & Chandra, 2017 ( Figure 10&11 ) Material examined : ZSI/ MBRC /PL-353, 1 ex, Thalayari Is. , Keelakarai (9°17’93.29”N 78°89’89.41”E), 25.xii.2018 , from the dead coral patches in the intertidal zone . Figure 10&11. Pseudoceros galatheensis Dixit, Raghunathan & Chandra, 2017 . Diagnosis: Body colour light blue, darker at rim. One thin bright yellowish-orange median stripe with darker outline ends without touching posterior margin, Pseudotentacles small and dark blue in colour, in continuation with margins. Distribution : India : Thalayari Is., GoM; Great Nicobar Island ( type locality). Elsewhere : Additional photographic record from Micronesia and Indonesia . Remarks : The present report of this species from the Gulf of Mannar extends its distributional range far westward from its type locality.