EURYGENIOPS 1 07 



Eurygeniops Ameghino 



Eurygenium Amegh., 1895, Bol. Inst. Geog. Argen., t. 15, p. 655. 

 Eurygeniops Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 464. 



The name first given this genus was found to be preoc- 

 cupied, and therefore changed. It is a clear cut genus, 

 differing from the others in the family in the expansion of 

 the front of the muzzle, and by the heavy broad character 

 of the skull. 



Eurygeniops latirostris Ameghino 



E. latirostris Amegh., loc. cited above. 



This is the type species and is based on a muzzle which 

 has never been figured, but which I figure, the drawing 

 being made from a photograph taken by Professor Scott 

 and kindly furnished me. The characters of the species 

 are those of the genus, with the following measurements 

 for specific determination, quoted from Ameghino: 



Palate, length 130 mm. 



Palate, width between incisors 3 41 mm. 



Palate, width between premolars 2 33 mm. 



Palate, width between molars 3 5 6 mm. 



Upper dentition, length from pm. R. to m. 3 82 mm. 



Upper premolar 4, length 1 1 mm. 



Upper premolar 4, width 19 mm. 



Eurygeniops normalis Ameghino 



E. normalis Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 466. 



This second species is described as being much smaller 

 than the preceding, the length from pm. 4 to molar 3 being 

 65 mm. 



