Day (1865) described for the first time, from Cochin,the spotted Grey Mullet, Mugil poecilus. Though Day (1889) has given Bombay and Western coast of India as the habitat of species, there are not records of its occurrence in this area. It has since been recorded from Bombay water by Spence & Prater (1931). I had opportunities of collection specimens referable to this species from its type locality, viz. Cochin and also from the backwaters of Ennore near Madras, and the study of these specimens showed their similarity with M. troscheli Blkr. A single specimen of M.poecilus obtained and examined in detail. These studies revealed some interesting facts about the identity of M. poecilus.