First record of two species of goby fish, Cryptocentrus cyanotaenia Bleeker and Istigobius diadema Steindachner (Perciformes: Gobiidae) in Indian waters

Abstract

Two goby fishes Cryptocentrus cyanotaenia Bleeker, 1853 and Istigobius diadema Steindachner 1877 were collected from the Tuticorin and Mandapam coastal waters of Tamilnadu, India. C. cyanotaenia is well distinguished by the presence of grey color body with 9 narrow white bars; blue lines and spots with markings on the head and snout; yellow margins of dorsal, anal and caudal fins. I. diadema is easily recognized by bold black line on the posterior portion of the eye; head region with a dark reddish tinge; dorsal, anal and caudal fins with dark spots.