66 



30. Sciuropterus vollicella. Flying Squirrel. Common. 



31. Tamias lateralis. Say's Striped Squirrel. Common. 

 3*4. Tuiuias quadrivittatus. Missouri Striped Squirrel. 



Common. 



33. Sperniophilug Ilarrisi. Harris's Striped Squirrel. 

 Abundant. 



3-4. Spermopliilus g raiimiiia rus. A second and larger 

 species of Spermophilus is also represented as abundant. This is un- 

 doubtedly S. grammurus, specimens of which, collected in this vicin- 

 ity have been brought in by Dr. Ilayden's parties. 



35. Cynomys Columbiamis. (C. Gunnisoni Baird.) 

 Short-tailed Prairie Dog. According to Mr. Mecham, this animal is 

 found as far west as the Sierra Nevada Mountains, but is not of 

 common occurrence in Salt Lake Valley. Smaller than C. Ludovici- 

 anus, and unfit for food; the other is regarded as excellent eating. 

 The C. Columbianus lives in more desert regions and feeds so much 

 upon the different species of Artemisia as to be thoroughly impreg- 

 nated with their peculiar flavor. 



30. Arctomys flavi venter. Yellow-footed Marmot. Com- 

 mon in the higher parts of the mountains, living among the rocks. 



Ilvstitin ini:. 



37. Eretliizon dorsatus, var. epizaiitlms. Porcu- 

 pine. Not common. Ranges southward to the headwaters of the 

 Arkansas, Red, Gila and Del Norte rivers. Much smaller and lighter 

 colored southward. 



LAGoniiDi:. 



38. liagromys princeps. Little Chief Hare. Under the 

 name of "Mountain Rat," this species is well known to Mr. Mecham, 

 who has often met with it, both to the northward and southward, 

 near the tops of the higher snow-capped peaks of the Rocky Moun- 

 tain Ranges. He described to me the animal and its habits so accu- 

 rately as to leave its identity beyond question. 



KlPOBIDJBi 



3©. XrepiiS callotis. Jackass Rabbit. Common. 



40. liepus campestris. Prairie Hare. Common. 



41. Ei«'i»ii* sylvatieus, var. artemisia. Common. 



42. liepns 1 merieailtiM, var. llairdii? In addition to 

 the three .species of Lepus above named, of which we obtained speci- 

 mens, a fourth was described to me as Inhabiting the higher parts of 

 the mountains. It is probably the L. Bairdii Ilaydeu and is said (per- 

 haps erroneously) to remain white the whole year. 



