Xenagoniates bondi (Myers, 1942)

Autapomorphies of Xenagoniates bondi View in CoL :

1. Lateral line (91): (1> 0) complete.

2. Horizontal process of anguloarticular (108): (0> 1) broadly covered by dentary which reaches posterior border of Meckelian cartilage. Reversal of synapomorphy 1 of node 206. Paralleled in nodes 246, 253, and 261.

3. Ventral margin of horizontal process of anguloarticular (109): (0> 1) perpendicular to laterosensory canal of dentary from medial view. Reversal of synapomorphy 1 of Xenagoniates bondi .

4. Ectopterygoid teeth row (159): (0> 1) present. Paralleled in nodes 168 and 300 and in Acestrorhynchus pantaneiro , Distichodus maculatus , Hoplias cf. malabaricus , and Serrasalmus maculatus .

5. Bony lamellae between second and third basibranchials (184): (1> 0) absent. Paralleled in the Serrasalmidae and in Attonitus ephimeros , Axelrodia lindeae , Hollandichthys multifasciatus , Hoplocharax goethei , Jupiaba scologaster , Piabucus melanostomus , Pyrrhulina australis , and Rhaphiodon vulpinus .

6. Posterior margin of cleithrum (235): (0> 1) with markedly concave margin, almost forming straight angle. Paralleled in nodes 162, 247, and 253 and in Agoniates anchovia , Attonitus ephimeros , Characidium borellii , Iguanodectes geisleri , Moenkhausia cf. intermedia , and Prionobrama paraguayensis .

7. Process of scapula forming anterior border of scapular foramen (244): (1> 0) present. Reversal of synapomorphy 9 of node 193.

8. Third postcleithrum (249): (0> 1) absent. Paralleled in the Gasteropelecidae , in node 302, and in Piabucus melanostomus , Pyrrhulina australis , and Rhaphiodon vulpinus .

9. Position of last supraneural (283): (0> 1) located more than two vertebrae in front of first dorsal pterygiophore. Paralleled in nodes 174 and 244 and in Engraulisoma taeniatum and Gymnocharacinus bergii .

10. Insertion of adductor mandibulae tendon on dentary (331): (0> 1) anterior to Meckelian cartilage. Paralleled in nodes 183, 186, and 253.