Opistognathus seminudus Smith-Vaniz, 2004
Halfnaked jawfish
photo by Walsh, F.

Family:  Opistognathidae (Jawfishes)
Max. size:  8.62 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 0 - 22 m
Distribution:  Western Pacific: Australia.
Diagnosis:  Dorsal spines (total): 10-11; Dorsal soft rays (total): 14-16; Anal spines: 2-2; Anal soft rays: 14-15; Vertebrae: 28-29. This species is distinguished by the following set of characters: D XI (exceptionally X), 14-16; about 28-36 oblique scale rows in longitudinal series on body; no scales anterolaterally forward of verticals from ultimate spine to 2nd segmented dorsal-fin ray; conspicuous ocellus between spines 2-5 of dorsal fin; 1-3 vomerine teeth (Ref. 76827).
Biology:  Inhabits coral reef (Ref. 75154).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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