Characiformes
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publication ID |
https://doi.org/ 10.15560/16.5.1181 |
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persistent identifier |
https://treatment.plazi.org/id/03E53859-DA33-263F-9658-6E14FCF89E72 |
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treatment provided by |
Marcus |
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scientific name |
Characiformes |
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Characiformes View in CoL View at ENA
1 Upper lip present; premaxilla with conical or multi- cuspid teeth ...............................................................2
1′ Upper lip absent; premaxilla with spatulate teeth ..... ....... Parodontidae View in CoL : Parodon magdalenensis View in CoL ( Fig. 2C)
2 Pectoral-fin with one unbranched ray .......................3
2′ Pectoral-fin with two or more unbranched rays.......... Crenuchidae View in CoL : Characidium phoxocephalum View in CoL ( Fig. 2A)
3 Adipose fin present; caudal fin not rounded ............... .............................................................. Characidae View in CoL : 4
3′ Adipose fin absent; caudal fin rounded....................... ............ Erythrinidae View in CoL : Hoplias malabaricus View in CoL ( Fig. 2B)
4 Mouth without external teeth on premaxilla ............5
4′ Mouth with external teeth on premaxilla ................... ............................................. Roeboides dayi View in CoL ( 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 ........................ Astyanax sp. ( 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 View in CoL ( 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 View in CoL ( Fig. 2F)
9′ Middle caudal-fin rays without dark stripe; humeral blotch ovoid; anal fin usually with 9 to 11 branched rays ....................... Creagrutus magdalenae View in CoL ( Fig. 2H)
10 Mouth superior; dorsal-fin origin behind anal-fin ori- gin................... Gephyrocharax melanocheir View in CoL ( 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 View in CoL ( 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 .... Hemibrycon sp. ( Fig. 2J)
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