Allen's Coralbrotula, Diancistrus alleni Schwarzhans, Møller & Nielsen 2005

Other Names: Allen's Viviparous Brotula

Allen's Coralbrotula, Diancistrus alleni. Source: Gerald R. Allen / FishBase. License: All rights reserved

A rarely seen secretive yellowish brotula that shelters in crevices on coral reefs.

Cite this page as:
Dianne J. Bray, Diancistrus alleni in Fishes of Australia, accessed 03 Oct 2023,

Allen's Coralbrotula, Diancistrus alleni Schwarzhans, Møller & Nielsen 2005

More Info


South Muiron Island to SW of Cassini Island, also Rowley Shoals and Scott Reef, Western Australia, Ashmore Reef, Timor Sea, and the northern Great Barrier Reef, Queensland. The species occurs elsewhere in the tropical, east-Indo-west Pacific.
Inhabits coral reefs, sheltering in reef crevices.


Dorsal fin 75-84; Anal fin 60-70; Vertebrae 11+32-34=43-45. 
Outer pseudoclasper hook-shaped, hook-like extension bent outwards, with massive supporter; inner pseudoclasper anteriorly connected to outer pseudoclasper, stout, fleshy; 1 or 2, rarely 3 large scales on operculum above opercular spine aligned in single row and usually covered by mucus and skin.


The species is named alleni for Dr Gerald R. Allen.

Species Citation

Diancistrus alleni Schwarzhans, Møller & Nielsen, 2005, The Beagle: 91, figs. 9-12. Type locality: Lizard Island, QLD, 1-10 m. 


Dianne J. Bray


Allen's Coralbrotula, Diancistrus alleni Schwarzhans, Møller & Nielsen 2005


Allen, G.R. 2009. Field Guide to Marine Fishes of Tropical Australia and South-East Asia. Welshpool : Western Australian Museum Edn. 4, 287 pp.

Allen, G.R. & Erdmann, M.V. 2012. Reef fishes of the East Indies. Perth : Tropical Reef Research 3 vols, 1260 pp.

Schwarzhans, W., Møller, P.R. & Nielsen, J.G. 2005. Review of the Dinematichthyini (Teleostei: Bythitidae) of the Indo-West Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 21: 73-163.

Quick Facts

CAAB Code:37228089

Biology:Live bearer

Depth:5-17 m

Habitat:Reef associated

Max Size:10 cm TL

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Species Maps

CAAB distribution map