Ostorhinchus hoevenii (Bleeker, 1854)
Frostfin cardinalfish
Ostorhinchus hoevenii
photo by Malaer, P.

Family:  Apogonidae (Cardinalfishes), subfamily: Apogoninae
Max. size:  6 cm TL (male/unsexed)
Environment:  reef-associated; brackish; marine; depth range 20 - 30 m
Distribution:  Indo-West Pacific: India, Indochina and Malay Archipelago, and northern Australia to Japan.
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-9; Anal spines: 2-2; Anal soft rays: 8-8. Description: Characterized by yellowish head grading to brown on body; distinctive white-edged dorsal fin; presence of small white spot below base of last dorsal ray; greatest depth of body 2.8-3.0 in SL (Ref. 90102).
Biology:  Adults form small schools in estuaries and sheltered bays with soft-bottom habitat to depths of 25 m (Ref. 48635). Usually seen among sponges, crinoids, or Diadema urchins in weedy areas. Eggs are incubated orally (Ref. 205).
IUCN Red List Status: Least Concern (LC); Date assessed: 14 February 2022 Ref. (130435)
Threat to humans:  harmless


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