Gobiopsis macrostoma Steindachner, 1861
Longjaw goby
Gobiopsis macrostoma
photo by FAO

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  10 cm SL (male/unsexed)
Environment:  demersal; freshwater; brackish; marine; depth range 0 - 4 m, amphidromous
Distribution:  Indo-West Pacific: western India to the Mekong.
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 8-9. Characterized by pale grey body color with irregular brown blotches on cheek, without pronounced dark patch covering top of head; presence of four dark brown saddles (including one on nape) dorsally on side; caudal fin base with diffuse blackish bar; presence of dark wedge-shaped mark on pectoral fin base; fully united pelvic fins, frenum present; rounded caudal fin; longitudinal scale series 36-44; presence of barbels on snout, tip of chin, and ventrally below lower jaw (except none on posterior mandible); strongly ctenoid scales; cheek and opercle without scales; deeply embedded nape scales; presence of sensory pores on head, including two preopercular pores; depth of body about 5.9 in SL (Ref. 90102).
Biology:  Inhabits mud and rock bottoms near shore in 0-4 m (Ref. 90102). Found in coastal waters, estuaries (Ref. 4833), tidal rivers, canals and creeks (Ref. 12693). Feeds on small fishes, crustaceans and insects. Not seen in markets (Ref. 12693).
IUCN Red List Status: Least Concern (LC); Date assessed: 28 June 2018 Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.