Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynolebias: Greek, kyon = dog + Greek, odous = teeth + Greek, lebias = a kind of small fish (Ref. 45335).
More on authors: Costa & Brasil.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; non-migratory. Tropical; 22°C - 26°C (Ref. 13614)
South America: Middle São Francisco River basin.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 27139); 9.0 cm SL (female)
Dorsal soft rays (total): 15 - 18; Anal soft rays: 17 - 21; Vertebrae: 35 - 37. Supraorbital neuromasts 32-38. Dorsal fin of males with long filamentous rays. Scaled anal-fin base. Contact organs on inner surface of most or all rays of pectoral fin of male. Dorsal-fin rays 16-18 in males, 15-17 in females; anal-fin rays 19-21 in males, 17-20 in females; caudal-fin rays 32-35. Snout gently pointed with lower jaw slightly elongated (Ref. 40938).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Bottom spawner, 4 months incubation (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. 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, Brasil. (Ref. 36579)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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