Opistognathus alleni Smith-Vaniz, 2004
Abrolhos jawfish

Family:  Opistognathidae (Jawfishes)
Max. size:  7.37 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 0 - 33 m
Distribution:  Eastern Indian Ocean: Australia.
Diagnosis:  Dorsal spines (total): 10-10; Dorsal soft rays (total): 19-20; Anal spines: 2-2; Anal soft rays: 17-18; Vertebrae: 32-33. This species is characterized by the following: D X,19 (rarely 20); about 21-31 oblique scale rows in longitudinal series on body; no scales anterolaterally forward of verticals from 6th to 9th segmented dorsal-fin rays; a broad dark submarginal stripe on spinous dorsal fin; spine tips with pale fleshy tabs; 1-3 vomerine teeth (Ref. 76827). further diagnosed by the rigid upper jaw lacking flexible lamina posteriorly, extending 0.4-0.6 eye diameters behind posterior margin of orbit; infraorbitals are moderately robust, the second and third infraorbitals with large sensory canal openings, third infraorbital with very slight suborbital shelf; A II,17-18; vertebrae 10+22, rarely 23; lateral line terminus below segmented dorsal-fin rays 13-17; no scales forward of verticals from segmented dorsal-fin rays 6-9; vomerine teeth 1-3; the tips of dorsal-fin spines with pale fleshy tabs; dorsal fin with submarginal dark stripe and the anal fin with a narrow, dark, submarginal stripe; belly with scattered white scattered white spots (Ref. 128653).
Biology:  Benthic species which occurs inshore (Ref. 75154).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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