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Actinopterygii (ray-finned fishes) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Cnesterodon: Greek, knester, -eros = scraper (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; brackish; benthopelagic; pH range: 7.5 - 82.0; dH range: 10 - 30; non-migratory. Subtropical; 17°C - 21°C (Ref. 13614), preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: lower Uruguay, Laguna dos Patos, Negro, and Salado River basins; western drainages of Argentina and small coastal drainages of Uruguay and Argentina.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.6 cm SL male/unsexed; (Ref. 50894); 4.5 cm TL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 8; Anal spines: 0; Anal soft rays: 10

Viviparous (Ref. 205).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Male anal fin modified into an elongate genitallium (Ref. 205). Distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Lucinda, P.H.F., 2003. Poeciliidae (Livebearers). p. 555-581. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brazil. (Ref. 50894)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Aquarium: commercial

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Internet sources

Cnesterodon decemmaculatus (Jenyns, 1842)