396 



University of California Publications. 



[Geology 



farther southward. To find it here associated with the remains 

 of Dendragapus, Bonasa, and Branta is certainly an interesting 

 addition to our knowledge of the distribution of birds. The 

 specimen is a typical strigine tarsometatarsus, the length of 

 which corresponds perfectly with the recorded tarsal length of 

 the Recent phase. Shufeldt figures the ligamentous skeleton of 

 a specimen from the region of Tucson, Arizona, which shows 



o Shufeldt, R. W., Am. Phil. Soc. Proc, vol. 39, p. 665, 1900. 

 the general proportions of the tarsometatarsus though the 



details are obscure. 



BRANTA CANADENSIS (Linnaeus) 

 A single nearly perfect carpometacarpus occurs in the Potter 

 Creek collection. The size is that of the Recent B. c. canadensis. 



INDETERMINATE ANSERINES 

 Four imperfect specimens representing three anserine species 

 of different sizes were found in the Samwel Cave deposits. The 

 characters of the bones are not sufficiently well shown to warrant 

 their assignment to any particular genus. 



MELEAGRIS, sp. 

 There appear in the Potter Creek deposits, eight specimens of 

 a meleagrine form, the species of which is not determinable from 

 the material obtained. An almost perfect humerus and the major 

 part of a coracoid are the only specimens at all well preserved. 

 These show the bird to be Meleagris and not Pavo. The size 

 is that of a female Meleagris ocellatus from Guatemala. The 

 characters of the humerus are intermediate between those of 

 M. ocellatus and M. gallopavo (domestic). In the absence of a 

 larger amount of material both of the fossil and the Recent 

 species, the specific designation of the cave form is left in 

 question. 



DENDRAGAPUS OBSCURUS (Say) 

 No less than one hundred and fourteen specimens from the 

 Samwel and Potter Creek caves are ascribed to this species. 

 With the exception of seven coracoids, all are limb bones, some 

 in a perfect state of preservation. For comparison a specimen 



