Blackfin Coralgoby, Paragobiodon lacunicola (Kendall & Goldsborough 1911)

Other Names: Blackfin Coral Goby

A Blackfin Coralgoby, Paragobiodon lacunicola, in Cenderawasih Bay, West Papua, Indonesia. Source: Gerald R. Allen / FishBase. License: All rights reserved

A pale yellow coral goby with a darker head, black fins except the paler pelvic fins, and fleshy papillae on the head. 

Cite this page as:
Bray, D.J. 2023, Paragobiodon lacunicola in Fishes of Australia, accessed 22 Jun 2024,

Blackfin Coralgoby, Paragobiodon lacunicola (Kendall & Goldsborough 1911)

More Info


Monte Bello Islands, Western Australia, to Ashmore Reef in the Timor Sea, and the far northern Great Barrier Reef, Queensland, to Byron Bay, with juveniles to Sydney New South Wales; also the Lord Howe Province in the Tasman Sea. Elsewhere the species occurs in the tropical, Indo-west-central Pacific.
Usually found among branches of the branching coral Pocillopora damicornis 


Dorsal fin VI + I,9-10; Anal fin I, 8-9. Longitudinal scale series 22-24.
Body depth at level of pelvic fins 3.0-3.1 in SL. Scales ctenoid scales except cycloid on abdomen; head, nape, prepectoral region, breast and midventral portion of abdomen naked; fleshy papillae present on snout and cheek; pelvic fin frenum and basal membrane complete.

Similar Species

The Blackfin Coralgoby differs from the similar False Blackfin Coralgoby, Paragobiodon kassai in having the origin of the first dorsal fin posterior to the upper base of the pectoral fins (vs. usually directly over the upper pectoral-fin base in P. kasaii), the origin of the pelvic fins directly below the lower pectoral-fin base (vs. before the lower pectoral-fin base in P. kasaii), and in having translucent pectoral fins (vs. black pectoral fins in P. kasaii). 


The specific name lacunicola is from the Latin lacuna (= pool, lake) and cola (= dwell, inhabit), presumably in reference to the type locality, a lagoon at Fakarava in the Tuamoto Islands. 

Species Citation

Ruppellia lacunicola Kendall & Goldsborough 1911, Memoirs of the Museum of Comparative Zoology, Harvard University 26(7): 318, pl. 6(1). Type locality: Lagoon at Fakarava, Paumotu [Tuamotu] Islands, French Polynesia.


Bray, D.J. 2023


Atlas of Living Australia

Blackfin Coralgoby, Paragobiodon lacunicola (Kendall & Goldsborough 1911)


Allen, G.R., Hoese, D.F., Paxton, J.R., Randall, J.E., Russell, B.C., Starck, W.A., Talbot, F.H. & Whitley, G.P. 1976. Annotated checklist of the fishes of Lord Howe Island. Records of the Australian Museum 30(15): 365-454 figs 1-2 

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

Francis, M. 1993. Checklist of the coastal fishes of Lord Howe, Norfolk, and Kermadec Islands, southwest Pacific Ocean. Pacific Science 47(2): 136-170 figs 1-2 

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

Hobbs, J-P.A., Newman, S.J., Mitsopoulos, G.E.A., Travers, M.J., Skepper, C.L., Gilligan, J.J., Allen, G.R., Choat, H.J. & Ayling, A.M. 2014. Checklist and new records of Christmas Island fishes: the influence of isolation, biogeography and habitat availability on species abundance and community composition. Raffles Bulletin of Zoology Supplement 30: 184–202

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

Kendall, W.C. & Goldsborough, E.L. 1911. Reports on the scientific results of the expedition to the tropical Pacific, in charge of Alexander Agassiz, by the U.S. Fish. Commission Steamer Albatross, from August, 1899 to March, 1900, commander Jefferson F. Moser, U.S.N., commanding. 13. The shore fishes. Memoirs of the Museum of Comparative Zoology, Harvard University 26(7): 239-343 figs 1-7 See ref at BHL

Larson, H. 2016. Paragobiodon lacunicolus. The IUCN Red List of Threatened Species 2016: e.T193017A2184874. Downloaded on 15 June 

Moore, G.I., Morrison, S.M., Hutchins, B.J., Allen, G.R. & Sampey, A. 2014. Kimberley marine biota. Historical data: fishes. Records of the Western Australian Museum, Supplement 84: 161-206 

Myers, R.F. 1989. Micronesian Reef Fishes. Guam : Coral Graphics 298 pp. 

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.

Quick Facts

CAAB Code:37428213

Conservation:IUCN Least Concern

Depth:5-20 m

Habitat:Reef associated, among branching corals

Max Size:3 cm TL

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CAAB distribution map