Ostorhinchus angustatus (Smith & Radcliffe, 1911)
Broadstriped cardinalfish
photo by Randall, J.E.

Family:  Apogonidae (Cardinalfishes), subfamily: Apogoninae
Max. size:  11 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 6 - 65 m
Distribution:  Indo-Pacific: Red Sea and East Africa (Ref. 2334) to the Line and MangarĂ©va islands, north to Japan, south to New Caledonia.
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-9; Anal spines: 2-2; Anal soft rays: 8-8. Whitish with 5 horizontal stripes (brassy to dark brown in color); dark spot at base of middle caudal fin rays; fin rays light red (Ref. 2334). Greatest depth of body 2.7-3.2 in SL (Ref. 90102). 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 4; circumpeduncular scales 12; total gill rakers 19, developed gill rakers 14; body white colored, with five poorly defined dark brown stripes on lateral surface of body, posterior end of third stripe reaching black spot on base of caudal fin; base of caudal fin with spot subequal in size to pupil (Ref. 93839).
Biology:  Commonly found in clear-waters of seaward reefs; on reef crests and slopes, where usually shallow, and along deep drop-offs to 25 m (Ref. 48635). Feeds on polychaetes and other small benthic invertebrates at night; cryptic under ledges or in holes by day (Ref. 1602). Solitary or in small groups (Ref 90102).
IUCN Red List Status: Least Concern (LC); Date assessed: 05 February 2021 Ref. (130435)
Threat to humans:  harmless


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