Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Rivulidae
Etymology: Cynopoecilus: Greek, kyon = dog + Greek, odous = teeth + Greek, poikilos = with a lot of colours (Ref. 45335).
Environment / Climate / Range
Freshwater; benthopelagic; non-migratory. Subtropical; 18°C - 24°C (Ref. 2059), preferred ?
South America: Brazil and Uruguay.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.3 cm SL male/unsexed; (Ref. 98301); 3.5 cm SL (female)
Morphology | Morphometrics
soft rays: 22 - 25;
Vertebrae: 28 - 30. Having faint spots restricted to the dorsal portion of the fin or caudal spots absent; pectoral fin length of male 18.6-22.6% SL; longitudinal rows of spots on body of male pale golden to greenish golden anteriorly and light blue posteriorly; pelvic fin length 6.8-8.3% SL in male, 6.4-7.5% in female; dark brown irregular marks on dorsum below dorsal fin of male, dorsal head profile of adult male slightly concave; lateral body stripes of male dark reddish brown; caudal fin or male without a bright blue zone along posterior margin of the fin; 11-14 supraorbital neuromasts and 1-3 neuromasts per scale of the lateral line (Ref. 42931).
Bottom spawner, 2 months incubation. Is very difficult to maintain in aquarium (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Costa, W.J.E.M., 2002. The annual fish genus Cynopoecilus (Cyprinodontiformes: Rivulidae): taxonomic revision, with descriptions of four new species. Ichthyol. Explor. Freshwat. 13(1):11-24. (Ref. 42931)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00145 - 0.00867), b=3.16 (2.94 - 3.38), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (K=6).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .