Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Metynnis: Greek, meta = with, after + Greek, ynnis, -eos = ploughshare (Ref. 45335); cuiaba: Named for its type locality, rio Cuiabá, tributary to rio Paraguai. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Rio Paraguai basin, in Cuiabá and Manso river drainages, including lakes (baías) in the Pantanal, Mato Grosso, Brazil
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 14.3 cm SL male/unsexed; (Ref. 81196)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 16 - 18; Anal soft rays: 35 - 39; Vertebrae: 38. Distinguished from other congeners by the combination of the following characters: gill rakers 22-24; scales on lateral line 100-110; scales rows above lateral line 48-56; predorsal scales 55-64; circumpeduncular scales 32-36; one or two bifurcate spines in the ventral keel; dark blotches, with ill-defined contour, sometimes forming transversal bars in the flanks (Ref. 81196).
Body shape (shape guide): short and / or deep.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pavanelli, C.S., R.P. Ota and P. Petry, 2009. New species of Metynnis Cope, 1878 (Characiformes: Characidae) from the rio Paraguay basin, Mato Grosso, Brazil. Neotrop. Ichthyol. 7(2):141-146. (Ref. 81196)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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