Y-bar Shrimpgoby, Cryptocentrus fasciatus (Playfair 1866)

Other Names: Black Shrimp-goby, Blue Finned Shrimp Goby, Y-bar Shrimp Goby

A Y-bar Shrimpgoby, Cryptocentrus fasciatus, Point Murat, Exmouth Gulf, Western Australia, November 2019. Source: Glen Whisson / iNaturalist.org. License: CC by Attribution-NonCommercial

A pale greyish, yellow or blackish shrimpgoby with five broad brown y-shaped bars, and bluish-white dashes on the head becoming spots on the body, dorsal fin without markings. The Y-bar Shrimpgoby shares burrows with alpheid shrimps

Cite this page as:
Dianne J. Bray, Cryptocentrus fasciatus in Fishes of Australia, accessed 23 Sep 2023, https://fishesofaustralia.net.au/home/species/99

Y-bar Shrimpgoby, Cryptocentrus fasciatus (Playfair 1866)

More Info


Shark Bay, Western Australia, around the tropical north to One Tree Island, southern Great Barrier Reef, Queensland; also reefs in the Coral Sea. Elsewhere the species occurs in the tropical, Indo-west Pacific from east Africa to 
Shares burrows with alpheid shrimps in sandy areas on coastal and inner reef slopes and near patch reefs. 


Dorsal fin VI-VII, 10; Anal fin I, 9.  greatest depth of body 5.5-5.8 in SL; united pelvic fins, presence of frenum; longitudinal scale series 77-92; absence of scales on head except a few scales dorsally on opercle;  rounded caudal fin, 3.2-3.8 in SL 


Rangesing from yellow, barred or mottled to blackish, dorsal fins unmarked; barred variety with four brown saddles, head with white or bluish streaks, plain dorsal fins, pelvic fins with blue spots, blue stripe on anal fin; saddled variety dark brown colour with whitish saddles on top of head and along back; head with small white or blue spots or streaks, pelvic fins with blue spots, blue stripes on anal fins; mottled variety with four diffuse brown bars on side; lower operculum with large brown blotch, head with white to bluish spots, strong mottling on back, anal fin with blue stripes.

Similar Species

Similar to the Yellow Shrimpgoby, Cryptocentrus cinctus, which has bluish streaks on the dorsal fin.

Species Citation

Gobiosoma fasciatum Playfair in Playfair & Günther 1866,  Fishes of Zanzibar: 72. Type locality: Zanzibar.


Dianne J. Bray


Australian Faunal Directory

Y-bar Shrimpgoby, Cryptocentrus fasciatus (Playfair 1866)


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

Hoese, D.F., Shibukawa, K. & Sakaue, J. 2011. A redescription of the gobiid fish Cryptocentrus sericus Herre, with clarification of Cryptocentrus leptocephalus and C. melanopus. Aqua, International Journal of Ichthyology 17(3): 163-172. PDF

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

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

Larson, H.K., Williams, R.S. & Hammer, M.P. 2013. An annotated checklist of the fishes of the Northern Territory, Australia. Zootaxa 3696(1): 1-293.

Playfair, R.L. in Playfair, R.L. & Günther, A. 1866. The Fishes of Zanzibar. London : John van Voorst 146 pp. 21 pls. 

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. 

Russell, B.C. 1983. Annotated checklist of the coral reef fishes in the Capricorn-Bunker group, Great Barrier Reef, Australia. Great Barrier Reef Marine Park Authority. Special Publication Series 1: 1-184 figs 1-2 

Smith, J.L.B. 1959. Gobioid fishes of the families Gobiidae, Periophthalmidae, Trypauchenidae, Taenioididae and Kraemeriidae of the western Indian Ocean. Ichthyological Bulletin of the J.L.B. Smith Institute, Grahamstown 13: 185-225 figs 1-42 pls 9-13

Quick Facts

CAAB Code:37428099

Behaviour:In burrows with alpheid shrimps

Depth:5-20 m

Habitat:Reef associated, sandy areas

Max Size:14 cm TL

Species Image Gallery

Species Maps

CAAB distribution map