BULLETIN 



or THE 



SooiUcni Galllornla ftcaflenm ol Sciences 



VOL. 2. LOS ANOCLCS, CAL, DEC. I, 1903. NO- 9 



PREHISTORIC CALIFORNIA. 



(Continued from November Bulletin.) 

 BY DR. LORENZO GORDIN YATES. ■ i, 



LLAMA, 

 Auchenia hesterna, Leidy. 



On page 256 of . "Contributions to the Extinct A^ertebrate 

 Fauna of the Western Territories," (loc. cit.), Dr. Leidy says: 

 "Among- the collection of fossils from California belonging to 

 the cabinet of Wabash College, Indiana (collected by Dr. Lo- 

 renzo G. Yates), there is a well-preserved series of lower molar 

 teeth, represented in Figs. 1, 2, Plate XXXVII. These, from 

 their size and constitution, would appear to belong to a species 

 of llama exceeding in size not only the existing llama, but 

 also the camel and the Palauchenia. " 



He further describes the teeth, and names the animal Au- 

 chenia hesterna. I quote some of his measurements of the 

 teeth, in comparison Avitli those of the camel and llama, as fol- 

 lows: Auchenia Auchenia Camel 



hesterna llama 

 Fourth premolar lines lines. lines. 



Antero-posterior diameter 13 5^2 12 



Transverse diameter 6 3 7 



Length of crown 20 3^ 4 



First molar : 

 Ant. post. diam. triturating surface. .20 7 .18 



Trans, diam. triturating surface lOV^ 5 9 



Length of crown 20 5 5 



Second molar: 



An. pos. diam of trit. surface 26 9 23 



Trans, diam. of trit. surface 8% 5% 10 



Length of crown 36 6 10 



Third molar: 



Ant. post. diam. where greatest 31 13 28 



Trans, diam. where greatest 10 5I/2 10 



Length of crown 41 7 17 



