Camallanides prashadi Baylis and Daubney, 1922 (Nematoda, Camallanidae) in Xenchropis piscator (Schneider, 1799) (Reptilia, Squamata) and discussion on the synonymy of Camallanides piscatori Khera, 1954 from West Bengal, India.

Camallanides prashadi Baylis and Daubney, 1922, recovered from the intestine of Asiatic water snake, Xenchropis piscator (Schneider, 1799), collected from the Bolpur town, Birbhum district of West Bengal, India, is redescribed. This species is characterised by presence of buccal capsule which is reddish-brown in colour and consists of two lateral buccal valves. Each buccal valve bears five complete and four incomplete longitudinal ridges, presence of similar, non-alate, unequal spicules and fourteen pairs of pedunculated caudal papillae. Of these papillae, seven pairs are preanal, two pairs are adanal and five pairs are postanal in position. Camallanides piscatori Khera, 1954 is proposed as a synonym for Camallanides prashadi Baylis and Daubney, 1922. Birbhum district is recorded as new geographical locality for this parasite.