A new species of Parapsilorhynchus Hora, 1921 (Teleostei, Cyprinidae) from Mahanadi River basin of Odisha, India

Abstract

A new cyprinid fish, Parapsilorhynchus swaini sp. nov., is described based on specimens collected from a stream near Harisankar, Mahanadi River basin of Odisha, India. It differs from other species of the genus in having following combination of characters: elongated and slender body (depth at dorsal fin origin 16.9-18.7% SL); narrow and slender head (width 60.0-68.7% HL, height at occiput 40.0-50.0% HL); narrow inter orbital space (46.6-50.0% HL); 33-34 lateral line scales; 3 simple pectoral fin rays, poorly developed callous pad behind lower lip which is not delimited posteriorly, pectoral fin longer than head length, presence of tubercles on snout and a black bar on the anal fin. With the description of this new species, distributional range of the genus Parapsilorhynchus is extended further north in the Eastern Ghats to the Mahanadi River drainage of Odisha.