About Anoplocapros inermis (Fraser-Brunner, 1935)
Anoplocapros inermis, commonly called the Eastern smooth boxfish, has 10 or 11 soft rays in its dorsal fin, 10 or 11 soft rays in its anal fin, 12 soft rays in its pectoral fin, and 11 soft rays in its caudal fin. The dorsal profile between the snout and the start of the dorsal ridge is convex. There are two rings of bony plate-like scales around the caudal peduncle: the front ring is broken, while the rear ring is complete. Both rings of plate-like scales feel rough, because they are covered in tubercles.
Overall body colour is pale yellow to brown above the lower ridge running along the flanks, fading to white below this ridge. The dorsal and lateral sides of the body are marked with large dark yellow to dark brown spots. In larger males, the entire body takes on a uniform yellow-tinged bluish colour, with transparent fins. This species has a maximum published total length of 35 centimetres (14 inches).
The Eastern smooth boxfish is endemic to southeastern Australia, where it is found in southern Queensland, New South Wales, and Victoria. In this region, it lives on coastal and offshore reefs at depths down to 300 metres (980 feet).