Redescription of Neocamallanus singhi (Nematoda: Camallanidae) with a note on related species.

The present paper deals with the redescription of the nematode Neocamallanus singhi Ali, 1957 based on specimens collected from the fish, Channa striata from Burdwan, West Bengal, India. Comparative study of this species with other related forms described from freshwater fishes of India and Pakistan indicates that Neocamallanus bengalensis Soota et Chaturvedi, 1971 and N. ophicephali Rehana et Bilquees, 1972 are synonyms of N. singhi.