Teuthididæ.

Body compressed and oblong, covered with very small scales. Lateral line continuous; tail not armed. Eye lateral, of moderate size. A single series of trenchant incisors in the jaws; palate smooth. One dorsal fin, the spinous portion being the more developed; anal with seven spines. Ventral fins thoracic. Pseudobranchiæ well developed.

Herbivorous fishes, inhabiting the tropical seas of the East Indian region and the western parts of the Pacific.

Teuthis javus. Hobson's Bay.

——tumifrons. West coast.

——nebulosa. Australian coast, Port Jackson.