Opistognathus flavidus
Opistognathus flavidus Smith-Vaniz, 2023
Yellowfin jawfish

Family:  Opistognathidae (Jawfishes)
Max. size:  7.1 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 110 - 117 m
Distribution:  Northwest Pacific: South Korea, Japan, and Taiwan.
Diagnosis:  Dorsal spines (total): 11-11; Dorsal soft rays (total): 11-11; Anal spines: 2-2; Anal soft rays: 10-10; Vertebrae: 26-26. This species is distinguished from its congeners by the following set of characters: rigid upper jaw lacking flexible lamina posteriorly, extending about 0.7 to 0.8 eye diameters behind posterior Opistognathus having a margin of orbit; infraorbitals moderately robust and tubular, 3rd infraorbital large with 3rd infraorbital larger with, 3rd infraorbital larger with short posterolateral arm ending in a sensory pore, suborbital shelf absent; D XI, 11; A II, 10; vertebrae 10+16; gill rakers 9-10+20-21 = 30-32; all fins mostly uniformly pigmented (except dorsal fin with very narrow grey or blue proximal stripe) (Ref. 128653).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 17 September 2024 Ref. (130435)
Threat to humans:  harmless


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