Charax stenopterus (Cope, 1894)

Mirande, Juan Marcos, 2010, Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy, Neotropical Ichthyology 8 (3), pp. 385-568 : 494

Autapomorphies of Charax stenopterus :

1. Lateral coverage of dilator fossa by sixth infraorbital (69): (0> 1) leaving a conspicuous naked area in anterior region of dilator fossa. Paralleled in the Iguanodectinae , in node 197, and in Hoplocharax goethei , Phenacogaster tegatus , and Psellogrammus kennedyi .

2. Laterosensory canal of sixth infraorbital (76): (1> 0) not branched. Paralleled in the Iguanodectinae , in node 203, and in Cyphocharax stellatus , Micralestes stormsi , and Phenacogaster tegatus .

3. Canal of lateral line on caudal-fin membrane (92): (1> 0) absent. Reversal of synapomorphy 3 of the Characidae . Paralleled in the Aphyoditeinae and Bryconops clade, in nodes 227, 229, 244, 287, 294, and 298, and in Aphyocharax nattereri , Bryconamericus rubropictus , B. thomasi , Hyphessobrycon anisitsi , Inpaichthys kerri , and Phenacogaster tegatus .

4. Length of ascending process of premaxilla (104): (0> 1) reaching just anterior end of nasal. Paralleled in nodes 225 and 294 and in Phenacogaster tegatus and Stichonodon insignis . Some trees: Paralleled in Bryconamericus agna .

5. Size and number of anterior dentary teeth (142): (0> 1) eight or more small and slender teeth at front of dentary. Paralleled in the Aphyoditeinae and in Pyrrhulina australis .

6. Ethmopalatine cartilage (171): (0> 1) present and conspicuous. Paralleled in Phenacogaster tegatus and Tetragonopterus argenteus .