HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesSingle-striped cardinalfish Single-striped cardinalfish (Apogon unitaeniatus) Scientific name: Apogon unitaeniatus Allen, 1995 The Single-striped cardinalfish (Apogon unitaeniatus) is a marine fish of the family Apogonidae. Native range: Indo-West Pacific, northwestern Australia. BiologyDorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8; Vertebrae: 24. Predorsal scales 4; gill raker count given includes 1-2 rudiments at beginning of upper and lower limbs; fine serrae present on margin of preopercle, preopercular ridge, and circumorbitals; body depth 2.5-2.8 in SL; color entirely whitish except for dark midlateral stripe extending from upper edge of preopercle to base of caudal fin. Remarks: Caudal fin slightly forked.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameApogon unitaeniatusFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.0Depth range1–60 m (3–197 ft)EnvironmentMarine; demersal; depth range 1 - 60 mClimateTropicalDistributionIndo-West Pacific: northwestern Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026