Hyphessobrycon herbertaxelrodi, Gery. Since Lucena, 1993

Mirande, Juan Marcos, 2010, Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy, Neotropical Ichthyology 8 (3), pp. 385-568 : 511

Autapomorphies of Hyphessobrycon herbertaxelrodi :

1. Number of maxillary teeth (136): (0> 1) four or more.

2. Abrupt decrease in size of dentary teeth (148): (0> 1) present.

3. Ethmopalatine cartilage (171): (1> 0) absent or reduced in size.

4. Process of scapula forming anterior border of scapular foramen (244): (0> 1) absent. Paralleled in nodes 193 and 252 and in Aphyodite grammica , Deuterodon langei , Hoplias cf. malabaricus , Leporinus striatus , Odontostilbe paraguayensis , and Thayeria obliqua.

5. Number of 2n chromosomes (363): (0> 1) 52 or more. Paralleled in the Characinae and Serrasalmidae , in node 196, and in Chalceus macrolepidotus , Hyphessobrycon herbertaxelrodi , Markiana nigripinnis , and Rhaphiodon vulpinus . Some trees: Paralleled in Hemigrammus unilineatus .

Some trees:

6. Number of gill rakers on first hypobranchial and ceratobranchial (196): (0> 1) ten or fewer. (k12-14). Paralleled in the Characinae and in Bryconops melanurus , Hyphessobrycon pulchripinnis , Iguanodectes geisleri , and Moenkhausia sanctaefilomenae . Some trees: Paralleled in node 196 and in Hemigrammus erythrozonus .

7. Denticles on gill rakers (201): (0> 1) absent. (k9-11). Paralleled in the Gymnocharacinae , in nodes 245 and 253, and in Axelrodia lindeae and Pseudochalceus kyburzi . Some trees: Paralleled in Hyphessobrycon elachys .