1921] Frick: Faunas of Bautista Creek and San Timoteo Canon 371 



Measurements of the Type and Referred Specimens of Procamelus edensis 



EDENSIS, N. SP., and P. EDENSIS RAKI, N. SUBSP. 

 Procamelus 



edensis edensis Procamelus edensis raki, n. sp. 



n. sp. ■ 



No. 23428 No. 23423 No. 23427 No. 23771 No. 24029 No. 1050 



Greatest length, Pj to Type Type 



Mji, inclusive 



107 mm. 





86 mm. 







85.5 mm. 



Greatest length, Mj to 

 M2, inclusive 



85.5 





75 



82.5 mm. 68.5 mm. 



67 



P5, greatest antero- 

 posterior diameter 



10.8 



10.5 mm. 











P3, greatest trans- 

 verse diameter 



6.6 



7 









7 



Pj, greatest antero- 

 posterior diameter 



15 



11.2 



13 





14.8 



12.8 



Pj, greatest trans- 

 verse diameter 



9' 



9.6 



7.3 



7.8 



(7.5) 





Mj, greatest antero- 

 posterior diameter 



20.6 



18.7 



20 



20.8 



21.5 



17 



Mj, greatest trans- 

 verse diameter 





14.2 



14 



13.1 



12.5 





M5, greatest antero- 

 posterior diameter 



26.5 





20.8 



28 



21 





Mj, greatest trans- 

 verse diameter 



16 





14 



14.5 



14 





M5, greatest antero- 

 posterior diameter 



37.4 





32.8 



33.5 



21.5 



30 



M5, greatest trans- 

 verse diameter 



16.2 





12.2 



14.5 



14 





Description. — 



-The teeth 



(figs. 76 



and 83 



) are 



moderately 



hing- 



crowned, and the exterior faces somewhat rugose. The crowns of the 

 main lobes of the M3 are wide anteroposteriorly and narrow trans- 

 versely. Toward the root the teeth, as is usual in the camels, become 

 relatively shorter anteroposteriorly and thicker transversely, the 

 resulting relative transverse breadth of worn teeth being well illus- 

 trated throughout the series and shown in figure 88 of a single tooth. 

 The heel of the last molar, small and hooked in the type specimen, 

 varies in form and size in different individuals, being quite large in 

 several. The is heavier than the Mg. The first molar is shorter 

 crowned than the other two, tending to be braehyodont. The last 

 premolar is double rooted, and is narrowly triangular in cross-section, 

 its anteroposterior diameter equalling 73% of that of the first molar. 

 The styles of the teeth are strongly developed. A referred specimen, 

 no. 1050 (fig. 78), with all units of the cheek tooth series represented 

 though somewhat broken, illustrates the very small size of P^. Another 

 referred specimen, no. 23771 (fig. 79), shows just anterior to the 

 double rooted Pj the small, round alveolus of the posterior root of 

 P3, and further illustrates the presence of the small, third premolar 

 in this species. 



