Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Cyprinodontidae (Pupfishes) > Cyprinodontinae
Etymology: Cyprinodon: Latin, cyprinus = carp + Greek, odous = teeth (Ref. 45335); ceciliae: Named for Cecilia Contreras Lozano.
Eponymy: Cecilia Contreras Lozano is the senior author’s daughter and the junior author’s niece. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; non-migratory. Tropical
Central America: Nuevo Leon, Mexico.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 27139)
This species is distinguished from its congeners in having its unique coloration: nuptial males violaceous blue with 7-8 well marked dark bar, all extending to venter; females' dorsal fins blackish in the proximal two thirds, ocellus with round black spot usually smaller than pupil; anal usually with a posterior dark spot near its base; eye diameter 1.2-1.6 times and maxilla 0.83-1.2 times in anal base (similar to C. longidorsalis); postdorsal-postanal distance 0.9-1.0 times in caudal peduncle length; teeth absent on 4th ceratobranchial; anal base large 2.5-3.2 times in head length; head length 2.8-3.2 times in SL (Ref. 26729).
The area of collection is arid, with little vegetation, often succulents, also with thick shrubby growth around; the area is dusty, with poor soils and some cultivated fields nearby. Water is clear, bottom muddy; aquatic vegetation includes Chara and Scirpus; banks shrubby or meadowlike (Ref. 26729). Not a seasonal killifish (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lozano-Vilano, M. de L. and S. Conteras-Balderas, 1993. Four new species of Cyprinodon from southern Nuevo León, Mexico, with a key to the C. eximius complex (Teleostei: Cyprinodontidae). Ichthyol. Explor. Freshwat. 4(4):295-308. (Ref. 26729)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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