The Smallspine Turretfish varies from green to brown or pink with darker blotches. As the fish ages it has increasing numbers of blue spots. It is known from marine waters throughout the tropical Indo-Pacific.
The Smallspine Turretfish has a hard carapace that is triangular in cross-section. It has a small mouth and a pointed snout. The dorsal fin is positioned further forward than the anal fin. The colouration of the species varies from green to brown or pink with darker blotches. Some of the carapace plates have dark margins. As the fish ages it has increasing numbers of blue spots.
In many publications, this species has been listed as Tetrosomus concatenatus. This name is a junior synonym of the Atlantic species Lactophrys triqueter (Linnaeus, 1758).
It occurs in a range of habitats from coral reef to inshore rocky reefs and seagrass beds.
It is known from marine waters throughout the tropical Indo-Pacific. In Australia it is recorded from south-western Western Australia, around the tropical north and south to the southern coast of New South Wales.
- Edgar, G.J. 1997. Australian Marine Life; the plants and animals of temperate waters. Reed Books. Pp. 544.
- Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178.
- Hutchins, B. & R. Swainston. 1986. Sea Fishes of Southern Australia. Complete Field Guide for Anglers and Divers. Swainston Publishing. Pp. 180.
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- Kuiter, R.H. 2000. Coastal Fishes of South-eastern Australia. Gary Allen. Pp. 437.