1919] Merriam: Tertiary Mammalian Faunas of Mohave Desert 581 



231 233 



Pig. 228. Alticamelus? or Pliauchenia?, sp. Calcaneum, no. 21567, X 

 Bicardo Pliocene, Mohave Desert, California. 



Fig. 229. Alticamelus?, sp. Astragalus, no. 23113, X Y>. Ricardo Pliocene, 

 Mohave Desert, California. 



Fig. 230. Alticamelus;, sp. Astragalus, no. 22519, X %. Ricardo Pliocene, 

 Mohave Desert, California. 



Fig. 231. Pliauchenia?, sp. Astragalus, no. 22521, X Ricardo Pliocene, 

 Mohave Desert, California. 



Figs. 232 and 233. Procamelus?, sp. Astragali, X %. Fig. 232, no. 22518; 

 fig. 233, no. 22520. Ricardo Pliocene, Mohave Desert, California. 



The mandible no. 22516 with dentition shows three premolars of 

 which the anterior tooth is small, bnt two-rooted. This tooth is mod- 

 erately hypsodont. This specimen evidently represents Procamelus 

 or Alticamelus. 



A small specimen, no. 21504 (fig. 219), shows the milk dentition. 

 Dm. t is long and narrow and the anterior lobe is well displayed. 



Among the foot bones there are at least fotir types represented. 

 No. 22521 (fig. 231) belongs to a very large form with relatively 

 wide astragalus. This form is presumably Pliauchenia. No. 23113 



