HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsDwarf scissortail rasbora Dwarf scissortail rasbora (Rasbosoma spilocerca) Scientific name: Rasbosoma spilocerca Rainboth & Kottelat, 1987 The Dwarf scissortail rasbora (Rasbosoma spilocerca) is a freshwater fish of the family Cyprinidae. Native range: Asia, Mekong basin. BiologyHas dark spot on dorsal fin; black spots on caudal fin not outlined with white; dark spot at caudal-fin base.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRasbosoma spilocercaFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length2.6EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAsia: Mekong basin.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