XLVIII LIST OF SPECIES ' 



Page. 



25. SPERMOPHILUS, Guv. 304 

 16.-Spennophilus macrourus, Bennet.-West Coast of Mexico. (Not belonging to the 



United States.) 327 



27. ARCTOMYS, Schreb. 338 



17.-Arctomys pruinosus, Gmelin. -Hoary Marmot; Whistler.-Hudson's Bay to 



Northwest coast of America 345 



18. Arctomys lewisii, Aud. & Bach. Lewis' Marmot. Columbia River? 347 



32. THOMOMYS, Max. 388 



19. Thomomys talpoides, Giebel. Mole Gopher. Hudson's Bay 403 



33. DIPODOMYS, Gray. 406 



20. Dipodomys wagneri, Leconte. South Carolina(I) (Very doubtful) 415 



21. Dipodomys hecrmannii, Leconte. Sierra Nevada, California 415 



37. REITHRODON, Waterh. 447 

 22. Reithrodon carolinensis. South Carolina 452 



38. HESPEROMYS, Waterh. 453 

 23. Hesperomys campestris, Lee. New Jersey. (Uncertain) >....* 485 



41. ARVICOLA, Lac. 509 



24. Arvicola albo-rufescens, Emmons. Massachusetts 549 



25. Arvicola borealis, Rich. Great Bear Lake 549 



26. Arvicola dekayi, Aud. &. Bach. New York 549 



27. Arvicola drummondii, Aud. & Bach. British Rocky Mountains 550 



28. Arvicola hirsutus 3 Dekay. New York , 550 



29. Arvicola nasuta, Aud. & Bach. Massachusetts 550 



30. Arvicola oneida, Dekay. New York 551 



31. Arvicola richardsonii, Dekay. British Rocky Mountains 551 



32. Arvicola rubricatus, Rich. Bearing's Straits 551 



33. Arvicola texiana, Aud. & Bach. Texas 552 



34. Arvicola xanthognathus, Leach. Hudson's Bay 552 



NOTE. Of th above Jrvicolat, those most likely to prove additional species are NOB. 25, 27, 31, 32, and 34. 



45. LEPUS. Lin. 573 



36. Lepus texianus, Aud. & Bach. Texas Rabbit. Texas and Arkansas 617 



36. Lepus nuttalii, Bach. Least Hare. Columbia River. (Very doubtful) 617 



