oe 
cee 
5. 
et hte 
. 12. 
maley 
. 14. 
. 15. 
LG: 
Thayeria obliqua Eigenmann. 
Premaxillary. 
Maxillary. 
Mandibulary teeth from within. 
Mandibulary teeth from without. 
PLATE 80. 
Dentition. 
Hemibrycon dentatus Eigenmann. 
arrangement of the teeth in the first row of the premaxillary in seven different specimens. 
Piedra Moler, Colombia. 
(See also Plate 76). 
Creagrutus magdalenae Eigenmann. 
Mandibulary teeth from the side. 
Mandibulary teeth from above. 
Right maxillary. 
Premaxillary teeth from below. 
Left maxillary. 
>i 
