Fishes from the Río Alvarado drainage, Upper Río Magdalena Basin, Colombia
Albornoz-Garzón, Juan G.
Conde-Saldaña, Cristhian C.
López-Delgado, Edwin O.
García-Melo, Jorge E.
Villa-Navarro, Francisco A.
Check List
2020
2020-09-18
16
5
1181
1198
X2
7991
[810,982,768,792]
Actinopterygii
Animalia
Characiformes
12
1193
Chordata
order
1 Upper lip present; premaxilla with conical or multi- cuspid teeth ...............................................................2 1′ Upper lip absent; premaxilla with spatulate teeth ..... ....... Parodontidae: Parodon magdalenensis( Fig. 2C) 2 Pectoral-fin with one unbranched ray .......................3 2′ Pectoral-fin with two or more unbranched rays.......... Crenuchidae: Characidium phoxocephalum( Fig. 2A) 3 Adipose fin present; caudal fin not rounded ............... .............................................................. Characidae: 4 3′ Adipose fin absent; caudal fin rounded....................... ............ Erythrinidae: Hoplias malabaricus( Fig. 2B) 4 Mouth without external teeth on premaxilla ............5 4′ Mouth with external teeth on premaxilla ................... ............................................. Roeboides dayi( Fig. 2L) 5 Mouth with four teeth on inner premaxillary row; fins usually yellowish or dark ..........................................6 5′ Mouth with five teeth on inner premaxillary row; fins usually reddish ........................ Astyanaxsp.( Fig. 2D) 6 Mouth subterminal; anal fin with 13 or fewer branched rays ............................................................................7 6′ Mouth terminal or superior; anal fin with more than 13 branched rays...................................................... 10 7 Mouth with three irregular rows of premaxillary teeth ...........................................................................8 7′ Mouth with two rows of premaxillary teeth ............... ...................................... Microgenys minuta( Fig. 2K) 8 Eye diameter less than 26.8% of head length; third infraorbital not in contact with preopercle ................. ...................................... Creagrutus dulima( Fig. 2G) 8′ Eye diameter more than 27.2% of head length; third infraorbital in contact with preopercle .....................9 9 Middle caudal-fin rays with dark stripe; humeral blotch vertically elongated; anal fin usually with 11 to 13 branched rays............. Creagrutus affinis( Fig. 2F) 9′ Middle caudal-fin rays without dark stripe; humeralblotch ovoid; anal fin usually with 9 to 11 branched rays ....................... Creagrutus magdalenae( Fig. 2H) 10 Mouth superior; dorsal-fin origin behind anal-fin ori- gin................... Gephyrocharax melanocheir( Fig. 2I) 10′ Mouth terminal; dorsal-fin origin anterior to anal-fin origin ....................................................................... 11 11 Anal fin with more than 30 branched rays; caudal fin without horizontal dark stripe; males with a pouch of scales at base of caudal fin .......................................... .......................... Argopleura magdalenensis( Fig. 2E) 11′ Anal fin with less than 30 branched rays; caudal fin with horizontal dark stripe; males without a pouch of scales at base of caudal fin .... Hemibryconsp.( Fig. 2J)