| Family: |
Cyprinodontidae (Pupfishes), subfamily: Cyprinodontinae |
| Max. size: |
7 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater, non-migratory |
| Distribution: |
Central America: Nuevo Leon, Mexico. |
| Diagnosis: |
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). |
| Biology: |
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). |
| IUCN Red List Status: |
Extinct (EX); Date assessed: 13 November 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
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