Acentrogobius caninus (Valenciennes, 1837)
Tropical sand goby
photo by CAFS

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  18.3 cm TL (male/unsexed); max.weight: 51.6 g
Environment:  demersal; freshwater; brackish; marine, amphidromous
Distribution:  Indo-West Pacific. Freshwater records from Madagascar by Pellegrin were based on juveniles of unidentified species (Ref. 4343).
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 9-10; Anal spines: 1-1; Anal soft rays: 9-9. Characterized by pale grey body with five diffuse brown saddles along back; midside with 4-5 diffuse brown blotches; head and body with scattered white spots; presence of diagnostic greenish patch behind upper edge of operculum; rounded caudal fin; longitudinal scale series 25-26; scales absent on head except upper half of opercle and predorsal fully scaled; mainly ctenoid body scales; depth of body 5.3 in SL (Ref. 90102).
Biology:  Occur along coastlines and in estuaries and harbors. Usually found in brackish tidal waters. Feed on invertebrates. Found to contain tetrodotoxin (TTX) and anhydrotetrodotoxin (anh-TTX) which causes paralytic food poisoning (Ref. 54777). Marketed fresh in Mekong delta (Ref. 12693).
IUCN Red List Status: Least Concern (LC); Date assessed: 11 March 2015 Ref. (123251)
Threat to humans:  poisonous to eat
Country info:   
 

Entered by: Luna, Susan M. - 27.01.92
Modified by: Reyes, Rodolfo B. - 06.08.20

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