Redigobius macrostoma (Günther, 1861)
Large-mouth goby
photo by Ravelomanana, T.

Family:  Gobiidae (Gobies), subfamily: Gobionellinae
Max. size:  5 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater; brackish; marine, amphidromous
Distribution:  Western Pacific: Australia.
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 7-8; Anal spines: 1-1; Anal soft rays: 5-7. Distinguished by the following characteristics: compressed head and body; grey to pale brown body, mottled and chequered with dark brown dorsally; 8 oblique narrow dark brown to purplish brown bars along side; large black blotch on first dorsal fin; greatly enlarged mouth in mature males; first spine of dorsal fin always longest; second dorsal rays I,7-8; anal rays I,7; pectoral rays 15-18; lateral scales 25-29; TRB 9-12; predorsal scales 12-16, reaching close up behind eyes (Ref. 84480).
Biology:  Found in estuaries, harbors and entering lower reaches of freshwater streams (Ref. 9002).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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