HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesStriped siphonfish Striped siphonfish (Siphamia majimai) Scientific name: Siphamia majimai Matsubara & Iwai, 1958 The Striped siphonfish (Siphamia majimai) is a marine fish of the family Apogonidae. Native range: Western Pacific, Japan to northern Australia. BiologyDorsal spines (total): 6 - 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. Body uniformly black and all fins pinkish except for pectoral. Head large. Similar to S. versicolor, but distinguished by 6 spines on the first dorsal (7 in S. versicolor). Body and weakly ctenoid scales covered with a mucous membrane. A luminous organ is present inside the translucent thorax muscles, containing symbiotic luminescent bacteria.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSiphamia majimaiFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.5EnvironmentMarine; reef-associatedClimateSubtropicalDistributionWestern Pacific: Japan to northern 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