Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Tyttobryconinae
Etymology: Priocharax: Greek, prio = to saw + Greek, charax, -akos = a fish without identification (Ref. 45335); pygmaeus: Named for its tiny size.
More on authors: Weitzman & Vari.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; depth range ? - 1 m (Ref. 28825). Tropical; 25°C - ? (Ref. 28825)
South America: Upper Amazon River basin in Colombia (Ref. 28825). Recorded from the río Ucayali basin in Peru (Ref. 96862).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.7 cm SL male/unsexed; (Ref. 96862)
Short description
Identification keys | Morphology | Morphometrics
Found in shaded or partially shaded rainforest stream. The bottom was clay with much leaf litter and without submerged plants.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Weitzman, S.H. and R.P. Vari, 1987. Two new species and a new genus of miniature characid fishes (Teleostei: Characiformes) from northern South America. Proc. Biol. Soc. Wash. 100(3):640-652. (Ref. 28825)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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