Brycon pesu

Mirande, Juan Marcos, 2010, Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy, Neotropical Ichthyology 8 (3), pp. 385-568 : 482-483

Autapomorphies of Brycon pesu :

1. Frontal fontanel (22): (0> 1) totally occluded by frontals. Paralleled in Brycinus carolinae .

2. Parietal fontanel (41): (0> 1) absent in adults. Paralleled in nodes 162, 170, and 181 and in Brycinus carolinae .

3. Ventral extent of third infraorbital (64): (1> 0) reaching horizontal arm of preopercle. Reversal of synapomorphy 3 of node 180. Paralleled in the Heterocharacinae and Iguanodectinae , in nodes 184, 198, 225, and 302, and in Agoniates anchovia , Hasemania nana , Markiana nigripinnis , Moenkhausia sanctaefilomenae , Pseudochalceus kyburzi , Roeboexodon geryi , and Stichonodon insignis . Some trees: Reversed in node 292.

4. Number of gill rakers on first hypobranchial and ceratobranchial (195): (0> 1) 15 or fewer. Reversal of synapomorphy 8 of node 177.

5. Total number of vertebrae (227): (1> 0) 40 or fewer. Reversal of synapmorphy 4 of the Characidae .Paralleled in nodes 205 and 302.

6. Position of ventral end of posttemporal (253): (1> 0) anterior or lateral to lateral margin of epioccipital. Reversal of synapomorphy 10 of node 177.

7. Scales covering supraoccipital spine (324): (0> 1) present and completely covering supraoccipital spine. Paralleled in Prochilodus lineatus .