Appearance
The Red Indian fish has an elongated, highly compressed body which is deepest towards the head, wedge-shaped with the thinnest part being the caudal peduncle. The relatively small eyes are placed high on the head and the mouth is oblique with tiny teeth on the jaws. The upper part of the operculum has two diagonal low ridges and the head is not spined. The skin is smooth and lacks scales. The long dorsal fin starts on the head in front of the eyes with a short spine but the longest spines are towards the front and they reduce in size towards the tail. The dorsal fin contains between 22 and 25 spines and 14 to 17 soft rays, the anal fin has between 9 and 11 spines and 4 to 7 soft rays. The dorsal fin is joined to the rounded caudal fin. The large pectoral fins are located low on the body and there are no pelvic fins. This species reaches a maximum total length of 35 cm (14 in).

