Marine gastropods of the family turridae encompass the largest living group of venomous snails. The taxonomy of this group is generally derelict along the southeast coast of India. The present study was carried out to observe the abundance and seasonal distribution of the turrids assemblage and this survey evaluated turrids from the by catch recourses from Kasimedu, Cuddalore, Mudasalodai and Pazhayar along the Tamilnadu coastline. Totally 1753 individuals belonging to 16 species of turrids were collected. The highest abundance of 16 species of turrids present in Pazhayar, whereas 13 species were in Mudasalodai 10 in Kasimedu and 6 in Cuddalore. Among these, Turricula javana, Lophiotoma indica and T. tornata were maximum abundant at all the four stations. The Shannon diversity index (H’log2) of turrids was varied from 1.94 – 0.68 and the species richness was varied from 2.21 to 0.31 where as seasonal contribution of turrids are maximum in pre-monsoon at Pazhayar and minimum in summer at Cuddalore. The species evenness was varied from 0.9 to 0.6 in Mudasalodai. The information regarding the diversity of turrid would assist the researchers to isolate the peptide from the turrid venom.
