Psammogobius biocellatus (Valenciennes, 1837)
Sleepy goby
photo by Randall, J.E.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  12 cm TL (male/unsexed)
Environment:  benthopelagic; depth range 0 - 3 m, amphidromous
Distribution:  Indo-Pacific: south to East London, South Africa (Ref. 2798). Western Central Pacific: Guam (Ref. 35720). Often confused with the more common Glossogobius giuris.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 9-9; Anal spines: 1-1; Anal soft rays: 8-8. Body dark brown to black, with longitudinal rows of small black spot; 2-3 saddles on back and side; black 1st dorsal fin; dark crossbands on pelvic fins (Ref. 2798).
Biology:  Inhabits intertidal areas, estuaries, lagoons and coastal rivers. Common in mangroves (Ref. 4343, 44894). Occasionally penetrates the lower reaches of freshwater streams (Ref. 44894).
IUCN Red List Status: Least Concern (LC); Date assessed: 02 July 2016 Ref. (119314)
Threat to humans:  harmless
Country info:   
 

Entered by: Sa-a, Pascualita - 04.05.94
Modified by: Casal, Christine Marie V. - 12.04.18
Checked by: Busson, Frédéric - 16.01.07

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