Bryaninops natans Larson, 1985
Redeye goby
Bryaninops natans
photo by Bogorodsky, S.V.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  2.5 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 7 - 27 m
Distribution:  Indo-Pacific: Red Sea to the Cook Islands, north to the Ryukyu Islands, south to the northern Great Barrier Reef; Guam and Kapingamarangi in Micronesia.
Diagnosis:  Dorsal spines (total): 5-9; Dorsal soft rays (total): 7-9; Anal spines: 1-1; Anal soft rays: 8-9. Dorsal-fin rays VI + I,7-1,9 (usually I,8); anal-fin rays I,8 or I,9 (usually I,9); pectoral-fin rays usually 14-16; scales on body extending forward at most to below interdorsal space, the longitudinal scale series 19-40 (mean count 31); canine tooth present on side of lower jaw; head and body compressed; body depth at origin of anal fin 16-25% SL; snout usually shorter than orbit diameter; gill opening reaching to or anterior to posterior margin of orbit; caudal fin usually slightly emarginate; pelvic fins forming a shallow cup, the spines as fleshy lobes; body transparent in life, except for yellow over abdomen; interorbital and iris bright pink. Largest specimen, 19.5mm SL (Ref. 89154).
Biology:  Hovers in groups above branches of certain Acropora corals in shallow lagoon reefs, Ref. 48637.
IUCN Red List Status: Near Threatened (NT); Date assessed: 20 June 2017 (A2c) Ref. (130435)
Threat to humans:  harmless


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