Cyprinodon inmemoriam Lozano-Vilano & Contreras-Balderas, 1993
Charco Azul pupfish

Family:  Cyprinodontidae (Pupfishes), subfamily: Cyprinodontinae
Max. size:  7.5 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater, non-migratory
Distribution:  Central America: Extinct; formerly from Río San Juan system, Mexico.
Diagnosis:  This species is distinguished from its congeners in having the following characters: 4th ceratobranchial with up to 4 teeth, at least on one side; maxilla shortest at 0.68 times in anal fin base; postdorsal-postanal length short 0.8 times in caudal peduncle length; head and body greyish blue, bars obsolete; eye 1.2 times in anal fin base; head 3.0 times in SL; anal fin base short 3.3 times in head length; dorsal fin short, reaching anterior third of caudal peduncle (Ref. 26729).
Biology: 
IUCN Red List Status: Extinct (EX); Date assessed: 04 October 2018 Ref. (130435)
Threat to humans:  harmless
Country info:   
 


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