IV 
TABLE OF CONTENTS. 
Enhydra Marina, . 
Mustela Martes, 
Spermophilus Macrourus, 
Putorius Agilis, 
Ursus Americanus, . 
Pseudostoma Borealis, . 
Pteromys Sabrinus, 
Pteromys Alpinus, . 
Arvicola Townsendii, 
Arvicola Uasuta, . 
Arvicola Orizivora, 
Scalops Townsendii, 
Dasvpus Peba, 
Spermophilus Townsendii, 
Arvicola Oregoni, . 
Arvicola Texiana, . 
Putorius Fuscus, 
Sciurus Fremonti, . 
Sciurus Fuliginosus, 
Pseudostoma Floridana, . 
Sorex Dekayi, 
Sorex Longirostris, . 
Scalops Argentatus, 
Yulpes Utah, .... 
Sciurus Mustelinus, 
Sciurus Auduboni, . 
Sciurus Aberti, 
Sciurus Fossor, 
Spermophilus Harrisii, . 
Arvicola Edax, 
Procyon Cancrivorus, . 
Mephitis Zorilla, . 
Canis (lupus) Griseus, 
Arvicola Dekayi, . 
Arvicola Apella, 
Arvicola Austerus, . 
Arvicola Californica, 
Arvicola Occidentalis, . 
Arvicola (Hesperomys) Campestris, 
Arvicola (Hesperomys) Sonoriensis, 
Arvicola Rubricatus, 
Perognathus Penicillatus, 
Pseudostoma (Geomys) Fulvus, 
Arvicola Montana, .... 
Pseudostoma Castanops, 
Pseudostoma (Geomys) Hispidum, . 
Pseudostoma Umbrinus, 
Pseudostoma (Geomys) Mexicanus, 
Pago 
. Sea Otter, i7o 
. Pine Marten, . . . . .176 
. Large-tailed Spermophile , . . ,181 
. Little Nimble Weasel , . . . ,184 
. American Black Bear , , . . . 187 
. Camas Rat , . , . . . .198 
. Severn-River Flying -Squirrel, . . . 202 
. Rocky Mountain Flying- Squirrel, . . 206 
. Townsend's Arvicola, .... 209 
. Sharp-nosed Arvicola, . . . .211 
. Rice Meadow -Mouse, . . . .214 
Townsend's Shrew-Mole, .... 217 
. Nine-Banded Armadillo, .... 220 
. American Souslik , ..... 226 
. Oregon Meadow-Mouse , .... 232 
Texan Meadow -Mouse, .... 280 
. Tawny Weasel, ..... 234 
. Fremont's Squirrel, ..... 237 
. Sooty Squirrel, 240 
Southern Pouched Rat, .... 242 
. DcKay’s Shrew, ..... 246 
Long-nosed Shrew, ..... 249 
. Silvery Shrew-Mole, ..... 252 
Jackall Fox, . . . 255 
. Weasel-like Squirrel , . . . . .258 
. Large Louisiana Black Squirrel, 260 
. Colonel Abert's Squirrel, . . 262 
. California Grey Squirrel , . . 264 
. Harris's Marmot Squirrel, . . 267 
. California Meadow Mouse , . .270 
. Crab-eating Raccoon, . . . .272 
Californian Skunk, . . . . .276 
. American Grey Wolf, . . . .279 
Glossy Arvicola, . . . . .287 
. Woodhouse's Arvicola, . . . .289 
Baird's Arvicola, . . . . .291 
. Californian Arvicola, . . . .293 
Western Arvicola, ..... 294 
. New Jersey Field Mouse, . . . .295 
. Sonora Field Mouse , . . . . .296 
. Red-sided Meadow Mouse, .... 297 
Tuft-tailed Pouched Rat, . . . .298 
. Reddish Pouched Rat, . . . .300 
. Peale's Meadow-Mouse, .... 302 
. Chestnut-cheeked Pouched Rat, . . . 304 
306 
. Leadbeater's Sand Rat, .... 307 
309 
