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Ovalentaria/misc (Various families in series Ovalentaria) >
Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); to the very elongate upper jaw of the type species of the genus, Opistognathus nigromarginatus (Ref. 128653).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 12701)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Smith-Vaniz, W.F. and T. Yoshino, 1985. Review of Japanese jawfishes of the genus Opistognathus (Opistognathidae) with description of two new species. Jap. J. Ichthyol. 32(1):18-27. (Ref. 12701)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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