Redspot Cardinalfish, Ostorhinchus rubrimacula (Randall & Kulbicki 1998)

A Redspot Cardinalfish, Ostorhinchus rubrimacula, in the Komodo National Park, Indonesia . Source: Mark Rosenstein / iNaturalist. License: CC by Attribution-NonCommercial-ShareAlike

An iridescent bluish-grey cardinalfish with six orange to yellowish-orange stripes along head and body, the third stripe from the upper edge of the eye ending below the rear of the first dorsal fin, and the midlateral stripe terminating in a red spot on the caudal-fin base.

Cite this page as:
Dianne J. Bray, Ostorhinchus rubrimacula in Fishes of Australia, accessed 30 Sep 2023,

Redspot Cardinalfish, Ostorhinchus rubrimacula (Randall & Kulbicki 1998)

More Info


Dorsalfin VIII + 9; Anal fin II, 8; Vertebrae 24. Predorsal scales 4. 
Preopercular edge serrate; preopercular ridge smooth to slightly crenulate; body depth 2.85-3.05 in SL.


Silvery bluish-grey with 6 orange to orange-yellow stripes on head and body, those on body narrower than blue-grey interspaces; third orange-yellow stripe from dorsal edge of eye ending below space between dorsal fins; midlateral orange-yellow stripe ending in a red spot at base of caudal fin.

Similar Species

Differs from the similar Orangelined Cardinalfish (Ostorhinchus cyanosoma) in having a single red spot at the midbase of the caudal fin, a higher number of gill rakers, and attaining a smaller maximum size.


The specific name rubrimacula is from the Latin ruber, meaning 'red', and macula, meaning 'spot', in reference to the conspicuous red spot at the midbase of the caudal fin.


Dianne J. Bray

Quick Facts

CAAB Code:37327142

Conservation:IUCN Least Concern

Depth:0-30 m

Habitat:Reef associated

Max Size:4.5 cm SL

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