134 



NOKTH 



AMEETCAl^ FAUNA. 



{ NO. 39. 



I. 



idahoensis, Thomomys, 108-109. 

 infrapallidus, Thomomys botta3, 55-56. 

 intermedius, Thomomys fulvus, 84-85. 



J. 



jacinteus, Thomomys, 66-67. 



K. 



Key to species, 36-40. 



L. 



lachuguilla, Thomomys, 88-89. 

 laticeps, Thomomys bottae, 46-47. 

 latirostris, Thomomys, 78-79. 

 leucodon, Thomomys bottae, 47-49. 

 limosus, Thomomys, 120-121. 

 List of species, 34-36. 

 loringi, Thomomys fuscus, 129-130. 



M. 



Macrogeomys, 7. 



magdalenge, Thomomys, 61-62. 



Map (genus), 9. 



Maps (species) 23, 24, 25, 26, 27, 28. 

 martirensis, Thomomys, 67-68. 

 Material examined, 30. 

 mazama, Thomomys monticola, 123-124. 

 mearnsi, Thomomys, 87. 

 Megascapheus (subgenus), 40. 

 Melanism, 21. 



melanops, Thomomys douglasi, 119-120. 

 mewa, Thomomys bottae, 50. 

 minor, Thomomys bottae, 51. 

 Molt, 18. 



monticola, Thomomys monticola, 121-123. 

 monticolus, Thomomys, 121. 

 myops, Thomomys fuscus, 130-131. 



N. 



nasicus, Thomomys monticola, 125. 



Natural enemies of pocket gophers, 13. 



navus, Thomomys bottae, 49-50. 



nebulosus, Thomomys talpoides, 102-103. 



neglectus, Thomomys, 65-66. 



nelsoni, Thomomys, 92-93. 



nevadensis, Thomomys townsendi, 44-45. 



niger, Thomomys, 121. 



nigricans, Thomomys bottae, 56-58. 



O. 



ocius, Thomomys, 107-108. 

 operarius, Thomomys, 77-78. 

 oregonus, Thomomys douglasi, 117-118. 

 orizabae, Thomomys umbrinus, 90-91. 

 Orthogeomys, 7. 



Oryctomys (Saccophorus) bottx, 45. 



P. 



pallescens, Thomomys bottae, 55. 

 Pappogeomys, 7. 

 pascalis, Thomomys bottae, 54. 

 Pelage, 15. 



conditions, abnormal, 20. 

 perditus, Thomomys, 95. 

 peregrinus, Thomomys umbrinus, 91-92. 

 perpallidus, Thomomys perpallidus, 68-69. 

 perpes, Thomomys perpallidus, 72-73. 



pervagus, Thomomys fulvus, 82-83. 

 pinetorum, Thomomys monticola, 124-125. 

 Platygeomys, 7. 



Pocket gopher. See also Thomomys. 

 Alberta, 129-130. 

 Bighorn, 103-104. 

 black, 121. 



black-and-brown, 95-96. 



black-headed, 119-120. 



Black Hills, 102-103. 



brown, 126-128. 



Cabezon, 76-77. 



California, 45-46. 



California Mountain, 121-123. 



camas, 40-42. 



Cape San Lucas, 59. 



Carrizo Plain, 55-56. 



Coeur d'Alene, 128. 



Colorado, 111-112. 



Columbia, 106-107. 



Coues, 100-101. 



Dakota, 98-99. 



Dalles, 114-115. 



Davis Mountain, 85. 



Deschutes, 125. 



desert, 83-84. 



Diablo, 51-52. 



digger pine, 50. 



Douglas, 116-117. 



Espanola, 82-83. 



fawn-colored, 79. 



Fisher, 11.5-116. 



Fort Bridger, 112-113. 



Fresno, 54. 



fulvous, 80-82. 



Goldman, 94-95. 



Grapeland, 55. 



gray, 73-74. 



Green River, 107-108. 



Heller, 126. 



Humboldt Bay, 46-47. 

 Idaho, 108-109. 

 JicariUa, 75-76. 

 LachuguiUa, 88-89. 

 La Puerta, 58-59. 

 little gray, 95. 

 little-headed, 130-131. 

 Lone Pine, 72-73. 

 Los Banos, 53. 

 Magdalena, 61-62. 

 Mazama, 123-124. 

 Mearns, 87. 

 Mendocino, 51. 

 Mexican, 91-92. 

 mountain-top, 84-85. 

 • Mount Whitney, 63-64. 

 Nelson, 92-93. 

 Nevada, 44-45. 

 Oregon, 117-118. 

 Orizaba, 90-91. 

 Owens Lake, 77-78. 

 Painted Desert, 78-79. 

 Palm Springs, 68-69. 

 ^ Phoenix, 79. 

 prairie, 98-99. 

 Pryor Mountain, 104-105. 

 pygmy, 109-110. 

 red, 49-50. 



