Blackcheek Threefin, Enneapterygius rufopileus (Waite 1904)

Other Names: Black-cheek Threefin, Lord Howe Black-head Triplefin, Redcap Triplefin

A male Blackcheek Threefin, Enneapterygius rufopileus, at Split Solitary Island, New South Wales. Source: Ian V. Shaw / Reef Life Survey. License: CC BY Attribution


Cite this page as:
Bray, D.J. 2017, Enneapterygius rufopileus in Fishes of Australia, accessed 22 Jun 2024,

Blackcheek Threefin, Enneapterygius rufopileus (Waite 1904)

More Info


North Solitary Island to Bendalong, New South Wales; also reefs in the Lord Howe Island region and Norfolk Island in the Tasman Sea. Elsewhere the species occurs in New Caledonia, Fiji and Tonga. Inhabits tidepools, rocky and coral reefs.


Dorsal fin III + X-XIV + 8-12; Anal fin I, 16-21; Lateral line interrupted, 15-20 + 15-21; Mandibular pores 4 + 1 + 4.
Supraorbital tentacle small; first dorsal fin in females shorter by 50% than second dorsal fin, and in males, shorter by 25%.



Similar Species

The Ringscale Threefin, Enneapterygius atrogulare, has a taller first dorsal fin (at least 75% height of second dorsal fin).


Bray, D.J. 2017

Blackcheek Threefin, Enneapterygius rufopileus (Waite 1904)


Williams, J. 2014. Enneapterygius rufopileus. The IUCN Red List of Threatened Species 2014: e.T178986A1555938. Downloaded on 10 February 2017.

Quick Facts

CAAB Code:37415032

Conservation:IUCN Least Concern

Depth:0-6 m

Habitat:Reef associated

Max Size:5 cm TL

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