PLATE 69. 



Fig. 1 and 2. Hemibrycon ipanquianus (Cope). 



21114 Acad. nat. sci. Philadelphia. Camera outline of the Type. 

 Fig. 3. Astyanax longior (Cope). Camera outline of the Type. 

 Fig. 4. Open jaws of same. 

 Fig. 5. Bryconamericus phoenicopterus (Cope). 



8074, Acad. nat. sci. Philadelphia. Camera outline of a Cotype. 

 Fig. 6. Maxillary of Astyanax aurocaudatus Eigenmaan. 

 Fig. 7. Bryconamericus simus (Boulenger). • 



11508 I. U. M. Camera outline of a Cotype. 

 Fig. 8. Mandible Astj-anax aurocaudatus Eigcimiann. 

 Fig. 9. Mandibulary teeth of a Bryconamericus phoenicopterus (Cope). 

 Fig. 10. Astyanax aurocaudatus Eigeimiann. Arrangement of the premaxillary teeth. 

 Fig. 11. Bryconamericus diaphanus (Cope). 



21217 Acad. nat. sci. Philadelphia. Camera outline of a Cotype. 

 Fig. 12. Dentition of the same, as seen from the side. 

 Fig. 13. Bryconamericus eigenmanni (Everraann & Kendall). 



11071 I. U. M. Camera outhne of a Cotype. 



