HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesSea urchin cardinal Sea urchin cardinal (Siphamia mossambica) Scientific name: Siphamia mossambica Smith, 1955 The Sea urchin cardinal (Siphamia mossambica) is a marine fish of the family Apogonidae. Native range: Western Indian Ocean, Kenya to Sodwana Bay, South Africa. Reported from Madagascar, Reunion and Mauritius. BiologyDorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. Body covered with dark dots; 2 dark spots on caudal base. Developed gill rakers 9.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSiphamia mossambicaFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.0Depth range100–123 m (328–404 ft)EnvironmentMarine; reef-associated; depth range 100 - 123 mClimateTropicalDistributionWestern Indian Ocean: Kenya to Sodwana Bay, South Africa. Reported from Madagascar, Reunion and Mauritius.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