Ostorhinchus taeniophorus (Regan, 1908)
Reef-flat cardinalfish
Pearly-line cardinalfish,  Reef-flat cardinalfish
Ostorhinchus taeniophorus
photo by Randall, J.E.

Family:  Apogonidae (Cardinalfishes), subfamily: Apogoninae
Max. size:  11.5 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 15 m
Distribution:  Indo-Pacific: Red Sea and Sodwana Bay, South Africa (Ref. 4329) to the Line and Pitcairn islands, north to southern Japan, south to New South Wales (Australia) and Rapa.
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-9; Anal spines: 2-2; Anal soft rays: 8-8. Characterized by having 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 (Ref. 93839); Whitish with 5-6 black stripes (Ref. 2334). Secondary dark line extends backwards as far as the first dorsal fin, in large specimens (Ref. 37816). Absence of dark spot on caudal fin base; greatest depth of body 2.7-3.0 in SL (Ref.90102).
Biology:  Occurs inshore (Ref. 7300). Found in holes or ledges of outer reef flats in areas exposed to surge (Ref. 1602), to depths of about 10 m (Ref. 48635). Nocturnal (Ref. 7300).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless
Country info:  Known from Western Australia, Northern Territory, Queensland and New South Wales (Shark Bay, W. A. to Byron Bay, N. S. W., including the Great Barrier Reef and the Gulf of Carpentaria) (Ref. 7300). Also Ref. 1602, 33390, 90102.


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