Lyretail Dartgoby, Ptereleotris monoptera Randall & Hoese 1985

Other Names: Lyre-tail Dart Goby, Lyre-tail Dart-goby, Lyretail Goby, Monofin Dartfish

Lyretail Dartgobies, Ptereleotris monoptera, in Cabbage Tree Bay, Manly, New South Wales, March 2019. Source: John Sear / License: CC by Attribution-NonCommercial

A pale blue to yellowish dartgoby with a deeper blue on the belly, a broad dark smudge-like bar from the eye to the chin, and irregular iridesent blue markings behind the eye.
Video of Lyretail Dartgobies 

Cite this page as:
Bray, D.J. 2022, Ptereleotris monoptera in Fishes of Australia, accessed 03 Dec 2023,

Lyretail Dartgoby, Ptereleotris monoptera Randall & Hoese 1985

More Info


North West Cape to Broome, Western Australia, and the southern Great Barrier Reef, Queensland, to Montague Island, New South Wales; also Lord Howe Island  in the Tasman Sea. Elsewhere the species occurs in the tropical, Indo-west-central Pacific.
Inhabits shallow coastal reefs and outer reef lagoons, excavating burrows in sandy and rubble substrates. 


Dorsal fin VII,35-39; Anal fin I,33-37; Vertebrae 26. 
A single, continuous dorsal fin with spinous part lower than soft portion. Chin with fleshy protuberance narrowing to a thin low, median fold. Scales very small, fully embedded and well separated.


Forms monogamous pairs, often in large loose aggregations.


The specific name monoptera is from the Greek monas (=single) and pteron (= fin,  wing), in reference to the dingle continuous dorsal fin.

Species Citation

Ptereleotris monoptera Randall & Hoese 1985, Indo-Pacific Fishes 7: 24, fig. 8, pl. 3(C, D). Type locality: Kuei-Hou, Taiwan.


Bray, D.J. 2022


Atlas of Living Australia

Lyretail Dartgoby, Ptereleotris monoptera Randall & Hoese 1985


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

Francis, M.P. 2019. Checklist of the coastal fishes of Lord Howe, Norfolk and Kermadec Islands, southwest Pacific Ocean, Version: 2019.1,

Greenfield, D. & Munroe, T.A. 2016. Ptereleotris monoptera. The IUCN Red List of Threatened Species 2016: e.T69181503A69183239. Accessed on 28 June 2022.

Hutchins, B. 2004. Fishes of the Dampier Archipelago, Western Australia. Records of the Western Australian Museum, Supplement 66: 343–398 

Hutchins, J.B. & Swainston, R. 1986. Sea Fishes of Southern Australia. Complete field guide for anglers and divers. Perth : Swainston Publishing 180 pp. (as Ptereleotris sp.)

Kuiter, R.H. 1992. Tropical Reef-Fishes of the Western Pacific, Indonesia and Adjacent Waters. Jakarta : PT Gramedia Pustaka Utama 314 pp. pls. 

Kuiter, R.H. 1993. Coastal Fishes of South-eastern Australia. Bathurst : Crawford House Press 437 pp. 

Kuiter, R.H. 1996. Guide to Sea Fishes of Australia. A comprehensive reference for divers and fishermen. Sydney, NSW, Australia : New Holland Publishers xvii, 434 pp. 

Larson, H.K. 2001. Microdesmidae. Wormfishes, dart-gobies, fire gobies. pp. 3607-3608, in Carpenter, K.E. & Niem, T.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 6 pp. 3381-4218.

Randall, J.E. 2005. Reef and shore fishes of the South Pacific. New Caledonia to Tahiti and the Pitcairn Islands. Honolulu : University of Hawaii Press 707 pp. 

Randall, J.E., Allen, G.R. & Steene, R. 1990. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 507 pp. figs. 

Randall, J.E., Allen, G.R. & Steene, R. 1997. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 557 pp. figs. 

Randall, J.E. & Hoese, D.F. 1985. A revision of the dartfishes, genus Ptereleotris (Perciformes: Gobioidei). Indo-Pacific Fishes 7: 1-36 figs 1-11 pls 1-4

Quick Facts

CAAB Code:37435020

Conservation:IUCN Least Concern

Depth:6-24 m

Fishing:Aquarium fish

Habitat:Reef associated

Max Size:12 cm SL

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CAAB distribution map