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University of California Publications in Geology [Vol. 10 



Hawver Cave is relatively greater than the percentage of extinct 

 species from either Samwel Cave or Potter Creek Cave. Furlong 

 believes that the Samwel Cave fauna represents a somewhat later 

 stage of the Pleistocene than does the fauna from Potter Creek Cave. 

 Judging only from a comparison of percentages, it would appear 

 that the Hawver Cave fauna is older than that from Potter Creek 

 Cave. As will be indicated below, this determination of the relative 

 age of Hawver Cave is, however, not compatible with that based upon 

 other lines of evidence. 



The mammalian faunas from the three principal California caves 

 may be conveniently contrasted in the following lists. An asterisk 

 or a dagger denotes an extinct subspecies or species. A double dagger 

 indicates that the genus is extinct. 



Hawver Cave 



Scapanus, possibly n. sp. 



Ursus, sp. 

 fCanis, near dirus Leidy 



Canis oehropus Esehscholtz 



Procyon psora Gray 



Mephitis occidentalis Baird 

 tSmilodon( ?), sp. 

 fFelis hawveri, n. sp. 

 fFelis, probably n. sp. 



Peromyscus boylei (Baird) 



Neotoma fuscipes Baird 



Microtus, sp. 



Thomomys, sp. 

 ?Aplodontia, sp. 



Citellus beecheyi (Richardson) 

 jLepus, probably n. sp. 

 tMylodon harlani Owen 

 JMegalonyx ( ?) , sp. 

 tNothrotherium shastense hawveri, 

 n. subsp. 



Odocoileus, sp. 

 JEueeratherium collinum (?) Sinclair 



and Furlong 

 tBison, sp. 

 tEquus, sp. 



}Mammut (tooth fragment) 



Potter Creek Cave 1 

 Scapanus latimanus (Bachman) 

 Antrozous pallidus pacificus Merriam, 

 C. H. 



X Arctotherium simum Cope 

 tUrsus, n. sp. 



t Canis dirus Leidy 



Vulpes cascadensis Merriam, C. H. 



Urocyon cinereoargenteus townsendi 

 Merriam, C. H. 



Bassariscus astutus raptor (Baird) 



Mustela arizonensis (Mearns) 

 f Spilogale, n. sp. 



Mephitis occidentalis Baird 



Taxidea, n. sp.( ?) 

 fFelis, probably n. sp. 

 fFelis, n. sp. 



Lynx fasciatus Rafinesque 



Lynx fasciatus, n. subsp. (?) 



Neotoma cinerea occidentalis Baird 



Microtus californicus (Peale) 

 fThomomys microdon Sinclair 



Thomomys leucodon Merriam, C. H. 

 *Aplodontia californica fossilis Sinclair 



Marmota flaviventer (Audubon and 

 Bachman) 



Citellus beecheyi douglasi (Richardson) 



Eutamias, sp. 



Callospermophilus clirysodeirus (Mer- 

 riam, C. H.) 



Sciurus douglasi albolimbatus Allen 



Sciuropterus alpinus klamathensis Mer- 

 riam, C. H. 



Sylvilagus auduboni (Baird) 

 tNothrotherium shastense Sinclair 

 {Megalonyx wheatleyi(?) Cope 

 JMegalonyx jeffersoni( ?) (Desmarest) 

 tMegalonyx, n. sp. 

 tMegalonyx, sp. 

 tCamelid 



1 Revised list. 



