Contents 5 



Key to the Subfamilies and Genera 328 



Subfamily Lutrinae. Otters 330 



Subfamily Melinas. Skunks and Badgers 335 



Key to the Species of Skunks {Mephitis and Spilogale) . . 336 

 Subfamily Mustelinas. Minks, Weasels, Martens and 



Wolverine 352 



Key to the Species of Minks and Weasels (Putorius) . . .359 



Key to the Species of Martens (Mustela) 381 



Family Procyonidse. Raccoons 391 



Subfamily Procyoninas. American Raccoons 391 



Family Ursidae. Bears 396 



Order Insectivora. Insect Eaters 405 



Key to the Families . 406 



Family Soricidae. Shrews 406 



Key to the Genera 407 



Key to the Species 409 



Subfamily Soricinse. Shrews 410 



Family Talpidae. Moles 433 



Subfamily Talpinas. Moles 434 



Key to the Genera 434 



Order Chiroptera. Bats 445 



Family Vespertilionidae. Typical Bats 451 



Key to the Genera 451 



Key to the Species 453 



Subfamily Vespertilioninge 455 



Family Molossidas. Free-tailed Bats 477 



Order Primates. Man, Apes, Monkeys, etc 478 



Family Hominidas. Man 478 



Appendix. Some Animals of the Past 480 



Bibliography 483 



Glossary 489 



Index 493 



Map of Illinois and Wisconsin 505 



