On the collection of Freshwater Mollusca from Bastar Plateau Zone, Chhattisgarh Author Sulthana, Rehanuma Author Laskar, Boni A. Author Deepa, J. text Records of the Zoological Survey of India 2020 120 4 461 469 journal article 10.26515/rzsi/v120/i4/2020/143316 2581-8686 13186549 15. Radiatula caerulea (Lea, 1831) Material examined : FBRC /ZSI/INV/1578, 03 ex, Sabri river , 18.i.2018 ; FBRC /ZSI/INV/1771, 03ex, Kangerdhara , Bastar , 21.i.2018 . Shell characters : Shell elongated; the surface of the valves completely sculptured in young ones but in adults only upper half sculptured. Distribution in India : Andhra Pradesh , Jharkhand , Meghalaya , Mizoram , Odisha , Punjab , Rajasthan , Madhya Pradesh , Uttar Pradesh , West Bengal .