Ostorhinchus doederleini (Jordan & Snyder, 1901)
Doederlein's cardinalfish
Ostorhinchus doederleini
photo by Miko Lui@114°E Hong Kong Reef Fish Survey

Family:  Apogonidae (Cardinalfishes), subfamily: Apogoninae
Max. size:  14 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 10 m
Distribution:  Western Pacific: subtropical, from southern Japan to Taiwan, then from subtropical Australia to New Caledonia and the Kermadec Islands.
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-9; Anal spines: 2-2; Anal soft rays: 8-8. Distinguished by having the following characteristics: dorsal fin rays VII-I, 9; anal fin rays II, 8; pectoral fin rays 15; pelvic fin rays I, 5; pored lateral line scales 24; predorsal scales 3; circumpeduncular scales 12; body pinkish brown, with four dark brown stripes on lateral surface of body; third stripe posteriorly not reaching to a black spot on caudal fin base; caudal fin base spot subequal in size to pupil diameter (Ref. 93839).
Biology:  Commonly occurs in rocky areas near shore and abundant on ledges. Solitary but pair off during breeding. Mouth brooding is done by the male. Nocturnal species (Ref. 7300).
IUCN Red List Status: Least Concern (LC); Date assessed: 05 February 2021 Ref. (130435)
Threat to humans:  harmless


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