486 University of California Publications in Geology [Vol. 10 



In so far then as the metapodials can be compared the Hawver 

 Cave and Raneho La Brea pumas are very closely related, if not 

 identical specifically. 



The remaining' skeletal parts of this species from Hawver Cave 

 consist mainly of limb elements. With the exception of their larger 

 size as contrasted with F. o. oregonensis, these structures do not 

 require special mention. 



Measurements of Metapodials 



Metatarsal 2 — 



No. 11019 No. 21470 



Greatest length 107.5 mm. 98.5 



Transverse diameter at middle of shaft 12 11 



Pore and aft diameter at middle of shaft 10.5 9 



Metatarsal 3 — 



No. 19925 



Greatest length 108.2 



Fore and aft diameter of proximal end a20.2 



Transverse diameter at middle of shaft 12.9 



Tore and aft diameter at middle of shaft 10.6 



Metacarpal 4 — 



No. 21471 



Greatest length 86 



Fore and aft diameter of proximal end 14.5 



Transverse diameter at middle of shaft 9.2 



Fore and aft diameter at middle of shaft 9.7 



a, approximate. 



RODENTIA 

 NEOTOMA FUSCIPES Baird 



Material, principally in the nature of isolated mandibles, occurring 

 in the Hawver Cave collections indicates the presence of the wood-rat, 

 Ncotoma fuscipes. This form is living in the vicinity of the cave at 

 the present time. The species is readily distinguished from N. cinerea 

 in the structure of the first inferior tooth. In N. cinerea the anterior 

 end or lobe is constricted off from the remainder of the tooth much 

 more definitely than in N. fuscipes. This is due mainly to the greater 

 depth of the most anterior re-entrant angle of the inner side. The 

 remaining re-entrant angles on the inner side of the tooth are more 

 open and cause the inner lobes to assume positions more nearly at right 

 angles to the long axis. In N. fuscipes the lobes take a position oblique 

 to the main axis of the tooth. In these characters the cave teeth 

 approach N. fuscipes and differ from N. cinerea. 



