Smallspine turretfish (Tetrosomus reipublicae)

Classification (WoRMS)

Full classification as recorded by WoRMS: Kingdom: Animalia · Phylum: Chordata · Class: Teleostei · Order: Tetraodontiformes · Family: Ostraciidae · Genus: Tetrosomus.

Accepted name: Tetrosomus reipublicae · Authority: (Whitley, 1930) · Taxonomic status: accepted · AphiaID: 279259.

Synonyms and superseded combinations recorded for this taxon: Lactophrys reipublicae Ogilby, 1913; Rhinesomus reipublicae (Ogilby, 1913); Tetrosomus reipublicae (Ogilby, 1913); Triorus reipublicae Whitley, 1930.

Source: World Register of Marine Species (WoRMS) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=279259 (CC BY 4.0). Accessed 2026-09-25.

Biology and life history (FishBase)

Measured values published by FishBase for Tetrosomus reipublicae. Only fields the database actually holds for this species are shown; these are database values, not aquarium guidance.

Maximum length: 30 cm · Habitat zone: demersal · Body shape: short and / or deep · Vulnerability index: 20 of 100 · Fishery importance: of no interest · Aquarium trade: never/rarely.

FishBase notes: Found on flat bottoms in coastal waters. Juveniles may be pelagic (Ref. 561). Feeds on benthic invertebrates.

Source: FishBase species summary (SpecCode 10591) — https://www.fishbase.se/summary/Tetrosomus-reipublicae.html (CC BY-NC 3.0 — non-commercial use only). Accessed 2026-09-25.

Distribution and occurrence records (GBIF)

1,065 georeferenced occurrence records for Tetrosomus reipublicae are published through GBIF from 9 countries or marine areas. The map above plots 62 distinct locations from a sample of 1,065 records, omitting 29 inland records that carry an institution's coordinates rather than a collection site; it shows where the species has been observed and reported, not a modelled range.

Most records by country or area: Australia (1,033); Chinese Taipei (12); Philippines (6); Japan (4); China (3).

The full country table, WoRMS marine regions and the sampling notes are on this species' Distribution page.

Source: GBIF Occurrence Search (taxonKey 2408168) — https://www.gbif.org/occurrence/search?taxon_key=2408168&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=279259 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-25.

Description and natural history (Wikipedia)

The smallspine turretfisj was first formally described as Triorus reipublicae in 1930 by the Australian ichthyologist Gilbert Percy Whitley with its type locality given as Moreton Bay in Queensland. Whitley based his desruiption on Based on Lactophrys reipublicae described by James Douglas Ogilby in 1913, which is a nomen nudum, plus additional material. the taxon Tetrosomus concatenatus is regarded by some authorities as a synonym of the Western Atlantic Lactophrys triqueter, and that Indo-Pacific specimens assigned to T. concatenatus are actually this species. The 5th edition of Fishes of the World classifies the genus Tetrosomus within the family Ostraciidae in the suborder Ostracioidea within the order Tetraodontiformes.

Etymology

The smallspine turretfish is a member of the genus Tetrosomus, this name being is a combination of tetra, meaning "four", and somus, which means "body", a reference to the quadrangular shape of the body of this fish. The specific name reipublicae means "commonwealth", an allusion to the Commonwealth of Australia, a name invented by Ogilby for the Australian populations of L. concatenatus.

Description

The smallspine turretfish is a greenish to brown or pinkish boxfish, the juveniles are marked with dark spots> As they grow the numbers of blue spots and lines increases. There are two spines on the dorsal ridge running along the back. The carapace has a triangular cross-section.

The mouth is small and there is a pointed snout. The dorsal fin is located further forward in comparison to the anal fin. This species has a maximum published total length of 30 cm.

Distribution and habitat

The smallspine turretfish occurs in the tropical, Indo-west Pacific, ranging from East Africa through Indonesia north to southern Japan and south to Australia. In Australia it ranges from Albany to northeast of the Monte Bello Islands, Western Australia and north Queensland as far south as Tathra, New South Wales, as well as in the Lord Howe Province in the Tasman Sea. This species occurs in inshore reefs and seagrass meadows.

Source: Wikipedia: Smallspine turretfish — https://en.wikipedia.org/wiki/Smallspine_turretfish (CC BY-SA 4.0). Accessed 2026-09-25.