HomeFish encyclopediaRay-finned fishesCharacinsCharacinsMountain stream sardine Mountain stream sardine (Hemibrycon taeniurus) Scientific name: Hemibrycon taeniurus Gill, 1858 The Mountain stream sardine (Hemibrycon taeniurus) is a freshwater fish of the family Characidae. Native range: Central America, western Trinidad. BiologyDorsal soft rays (total): 8; Anal soft rays: 26 - 29; Vertebrae: 39 - 41. This species is distinguished from most of its congeners by the number of branched anal-fin rays (25-29 vs. 15-24); with species sharing similar lateral line counts, it differs from H. boquiae by the number of scale rows above lateral line (8 vs. 6-7), and by the total number of vertebrae (39-41 vs. 41-43); from H. brevispini by the number of cusps of three anteriormost dentary teeth (5 vs. 3), and by absence of bony hooks in the caudal-fin rays of males (vs. presence); from H. cairoense, H. huambonicus and H. polyodon by the number of lateral line scales (40-42 vs. 43-46, 44-48 and 42-45, respectively); from H. dariensis by the number of cusps of second tooth of premaxillary inner row teeth (5 vs. 7), and by the absence of pigment in the distal tip of rays just above and below to middle caudal-fin rays; from H. divisorensis and H. surinamensis by the absence of a wide black asymmetrical spot covering baSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHemibrycon taeniurusFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length6.5EnvironmentFreshwater; benthopelagicClimateTropicalDistributionCentral America: western Trinidad.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