Batfish

Platax pinnatus adults have a round, strongly compressed body which has a depth of twice the length of the head. This species reaches a maximum published total length of 45 cm (18 in). Larger adults, with a standard length in excess of 35 cm (14 in) have a protruding snout and a concave dorsal profile of the head. Both jaws have bands of thin, flattened, tricuspid teeth with the central cusp being around two times as long as the lateral cusps. There are vomerine teeth but no palatine teeth. The dorsal fin is supported by 5 or 6 spines and between 34 and 37 soft rays while the anal fin contains 3 spines and 24 to 28 soft rays. The overall colour is silvery with a dusky or dark vertical bar running through the eye and a second similar bar running through the base of the pectoral fin. The dorsal, anal and caudal fins are yellow.

Platax pinnatus is found in the Indo-West Pacific although FishBase notes that records from the Indian Ocean, other than Australia, are subject to some doubt. The confirmed range is in the western Pacific from the Ryukyu Islands south to Australia. In Australia, it has been recorded from off the central coast of Western Australia, around the tropical northern coasts and south along the east coast to the central coast of New South Wales. The adults are found under the overhangs of steep outer reef slopes down to depths greater than 20 m (66 ft). The juveniles are found among mangroves or sheltering in caves and under ledges in inner protected reefs.