Greybeard Dwarfgoby, Trimma annosum Winterbottom 2003

Other Names: Greybeard Pygmygoby, Greybearded Pygmy Goby, Greybearded Pygmygoby

A Greybeard Dwarfgoby, Trimma annosum, in the Maldives. Source: Andrey Ryanskiy / FishBase. License: CC by Attribution-NonCommercial

A bluish-grey dwarfgoby with a greyish cheek, 3-4 rows of large orange blotches on the head and body, with the uppermost row forming saddles along the back.

Cite this page as:
Bray, D.J. 2018, Trimma annosum in Fishes of Australia, accessed 14 Jul 2020,

Greybeard Dwarfgoby, Trimma annosum Winterbottom 2003

More Info


Ashmore Reef, Timor Sea, and the northern Great Barrier Reef, and reefs in the Coral Sea to One Tree Island, Queensland. Elsewhere the species occurs in the tropical, east Indo-west-central Pacific.
This solitary species shelters on caves and crevices.


The specific name is from the Latin ‘annosum’ (full of years, long lived, aged), in allusion to the plain grey cheek of the new species, which is perhaps reminiscent of that class of elderly hirsute human males sometimes referred to as ‘ greybeards’.

Species Citation

Trimma annosum Winterbottom 2003, Zootaxa 218: 2, figs 1-2. Type locality: Cagilai Island, off Ovalau Islands, Viti Levu, Bau Waters, Fiji. 


Bray, D.J. 2018


Australian Faunal Directory

Greybeard Dwarfgoby, Trimma annosum Winterbottom 2003


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

Greenfield, D. 2016. Trimma annosum. The IUCN Red List of Threatened Species 2016: e.T193196A2207443. Downloaded on 16 May 2018.

Winterbottom, R. 2003. A new species of the gobiid fish Trimma from the western pacific and northern Indian Ocean coral reefs, with a description of its osteology. Zootaxa 218: 1-24 

Winterbottom, R. & Hoese, D.F. 2015. A revision of the Australian species of Trimma (Actinopterygii, Gobiidae), with descriptions of six new species and redescriptions of twenty-three valid species. Zootaxa 3934: 1-102

Quick Facts

CAAB Code:37428398

Conservation:IUCN Least Concern

Depth:5-60 m

Fishing:Aquarium fish

Habitat:Reef associated

Max Size:3 cm TL

Species Image Gallery

Species Maps

CAAB distribution map