Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynopoecilus: Greek, kyon = dog + Greek, odous = teeth + Greek, poikilos = with a lot of colours (Ref. 45335); nigrovittatus: From the black stripes of the male; an adjective.
More on author: Costa.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 42931); 3.2 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 17 - 20; Anal spines: 0; Anal soft rays: 23 - 27; Vertebrae: 28 - 29. Dorsal head profile of adult male strongly concave; lateral body stripes of male black; bright blue zone along the posterior margin of caudal fin of male; dark spots on the entire caudal fin of male; pectoral fin length of male 19.6-23.4% SL; longitudinal rows of spots on body of male light blue; pelvic fin length 6.3-7.2% SL in male and 6.4-7.4 in female; dark brown irregular marks on dorsum below dorsal fin of male; 15-17 supraorbital neuromasts and 1-3 neuromasts per scale of the lateral line (Ref. 42931).
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. 130435: Version 2025-2)
Threat to humans
Harmless
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