HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsSmall scale mud carp Small scale mud carp (Cirrhinus microlepis) Scientific name: Cirrhinus microlepis Sauvage, 1878 The Small scale mud carp (Cirrhinus microlepis) is a freshwater fish of the family Cyprinidae. Native range: Asia, Chao Phraya and Mekong basins in Thailand, Laos, Cambodia and Viet Nam. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 15-16; Vertebrae: 40. Distinguished from other species of the genus in the area by its count of lateral line scales: 53-60. A large species with very small scales, no barbels, and distinctive coloration. Juveniles silvery with red caudal fin, larger fish with head and body violaceous, rosy, or bluish and caudal fin duskySource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCirrhinus microlepisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length65.0EnvironmentFreshwater; benthopelagic; potamodromousClimateTropicalDistributionAsia: Chao Phraya and Mekong basins in Thailand, Laos, Cambodia and Viet Nam.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026