Ostorhinchus cookii (Macleay 1881)

Distinguished by having the following characteristics: Dorsal-fin rays VII-I, 9; anal-fin rays II, 8; pectoral-fin rays 14; pelvic-fin rays I,5; pored lateral line scales 24; predorsal scales 3-4; circumpeduncular scales 12; total gill rakers 18-20, developed rakers 12-13 (Ref. 93839). Whitish with 5-6 stripes (dark brown to yellowish), the stripe originating at the upper rear corner of eye incomplete; midlateral stripe ending in a distinct black spot at caudal fin base (Ref. 2334). Further characterized by presence of dark spot at middle of caudal fin base merged with midlateral stripe; greatest depth of body 2.5-2.8 in SL (Ref. 90102).

Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Analspines: 2; Analsoft rays: 8

Found in caves or othe projections in the Indo-Pacific Region (Ref. 9137); also in coral reefs (Ref. 58534). Nocturnal species (Ref. 75154). Exhibits the black gut phenomenon. In nocturnal predators, it appears to serve to conceal bioluminiscent prey in the stomach cavity (Ref. 46685).

Found close to ledges of rocky areas or coral reefs during the day (Ref. 559). Subtidal zone to depths of about 10 m (Ref. 48635). Nocturnal species (Ref. 7300). Solitary or in small groups (Ref 90102).

fisheries: of no interest