Gerres microphthalmus Iwatsuki, Kimura & Yoshino, 2002
Small-eyed whipfin mojarra
photo by Tanaka, H.

Family:  Gerreidae (Mojarras)
Max. size:  12 cm SL (male/unsexed)
Environment:  pelagic-neritic; brackish; marine; depth range - 20 m
Distribution:  Northwest Pacific: southern Japan.
Diagnosis:  Dorsal spines (total): 9-9; Dorsal soft rays (total): 10-10; Anal spines: 3-3; Anal soft rays: 7-7. Second dorsal fin elongated, reaching just short of last dorsal fin ray when depressed (in all stages, up to 50% SL, mean 42% SL, tip very easily broken). Orbit diameter relatively small (8-11% SL), ratio as % of snout length, 93-143. Head length relatively short, 30-33% of SL. Maxillary reaching to below or (rarely) just short of anterior margin of iris. Exposed maxillary process always tapering to a point anteriorly for about half its length. Supraneural bones 3 (Ref. 43141).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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