HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesCrown-of-thorns cardinalfish Crown-of-thorns cardinalfish (Siphamia fuscolineata) Scientific name: Siphamia fuscolineata Lachner, 1953 The Crown-of-thorns cardinalfish (Siphamia fuscolineata) is a marine fish of the family Apogonidae. Native range: Western Pacific, Sumatra, south Taiwan, and the Marshall Islands. BiologyDorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. Plain dark brown to black, showing a lined pattern on occasion, and usually when caught or as juveniles. Black lines slightly broader in width to pale interspaces. Sometimes confused with the striped form of Siphamia tubifer or S. versicolor, that has narrower black lines.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSiphamia fuscolineataFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.0Depth range7–27 m (23–89 ft)EnvironmentMarine; reef-associated; depth range 7 - 27 mClimateTropicalDistributionWestern Pacific: Sumatra, south Taiwan, and the Marshall Islands.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