530 THE WASATCH AND BKIDGER FAUN^. 



third trochanter is only moderately pi'ominent. It is situated at the mid- 

 dle of the shaft. The posterior face of the shaft is everywhere flat. The 

 patella is an elongate oval and has not the tendinous prolongation of the 

 one figured in Wheeler's report IV, PI. LVIII, fig. 4. 



Measurements of femur. 



M. 



Total length 376 



Proximal width 109 



Transverse diameter of head 056 



Ti'ansverse diameter of great trochanter 053 



Width of shaft at little trochanter 080 



Width of shaft at third trochanter 066 



Width of shaft below third trochanter 055 



Kstal diameters^ *™°«^'^^^'''^^1''" f~ 



( anteroposterior at external trochlear ridge 083 



The tibia is characterized by the remarkable slenderness of its shaft as 

 compared with the diameters of its head. Above and at the middle the 

 shaft is compressed, so that its long axis is nearly anteroposterior. The 

 crest is truncate by the wide insertion of the quadriceps extensor muscle, 

 and incloses scarcely any fossa on the external face of the bone. The 

 cotyli are separated by a wide open emargination behind, and a narrow 

 groove in the position of the spine. The interior is one-fourth wider autero- 

 posteriorly than the external. 



3Ieasurements. 



M. 



„ • 1 J- i r *i ■ (transverse 095 



Proximal diameter oi tibia ! 



c anteroposterior 070 



T^. . /.. ii.-i( transverse 047 



Diameters of external cotylus < 



C anteroposterior 051 



Diameters of shaft at middle I t™"^^'^'"^'' °'^f 



( anteroposterior 6 



The teeth discovered with these specimens are superior molars, pre- 

 molars, incisors, and canines. No inferior true molars were obtained, so 

 that the relationships of the C. latipes to the species discovered in New 

 Mexico remains uncertain When the characteristic teeth are obtained, it 

 may be found to be identical with some of the latter. I look for future 

 investigations in Wyoming, now under way, to decide this question. 



From the Wasatch beds on Bear River, near Evanston, Wyoming. 



