Cyprinodontiformes

Albornoz-Garzón, Juan G., Conde-Saldaña, Cristhian C., López-Delgado, Edwin O., García-Melo, Jorge E. & Villa-Navarro, Francisco A., 2020, Fishes from the Río Alvarado drainage, Upper Río Magdalena Basin, Colombia, Check List 16 (5), pp. 1181-1198: 1194-1195

publication ID

http://doi.org/ 10.15560/16.5.1181

persistent identifier

http://treatment.plazi.org/id/03E53859-DA32-263C-9658-6A09FCF89D26

treatment provided by

Marcus

scientific name

Cyprinodontiformes
status

 

Cyprinodontiformes  

1 Pectoral fin with all rays branched; dorsal and anal fins origin posteriorly placed; anal fin in males not modified into a gonopodium ...................... Rivulidae   : Rivulus (Cynodonichthys) magdalenae   ( Fig. 4G)

1′ Pectoral fin having unbranched rays; dorsal and anal fins placed on middle of body; males with anal fin modified into a gonopodium ................ Poeciliidae   : 2

2 Dorsal fin with dark spots; body without dark dots and blotches (in both sexes)... Poecilia sphenops   ( Fig. 4H)

2′ Dorsal fin without dark spots; body usually with dark dots and blotches (only in males) ................................ ........................................ Poecilia reticulata   ( Fig. 4I)