604 



TABLE OF CONTENTS. 



PAGE 



Assapan {P. volucella) ... 312 

 3, — Genus: Ground Squirrels {Ta 



mias) . ; 313 



'&\xiVLn&.VL)ii{T.striatus) . . . 313 

 Chipmunk (T. lysteri) . . . .314 

 Four-striped Chipmunk ( T. 



quadrivittatus) 314 



Mountain Chipmunk {T. la- 

 teralis) 314 



Southwestern Chipmunk (T. 



harrisi) 314 



4. — Genus: Xerus(J['ifr»j) 314 



Xerus {X. ruiilus) 314 



THE MARMOTS (Arciomyina:') .... 315 

 5. — Genus : Pouched Marmots {Sper- 



mophilus) 315 



Souslik (5. citillus') 315 



Parry's Marmot Squirrel (5. 



empetra) 316 



Gray Prairie Squirrel {S. 



franklini) 316 



Thirteen-lined Spermophile 



{S. tridecum-lineatus) . . 316 

 6. — Genus : Prairie Dogs (Cynomys) 316 

 Prairie Dog {C. Itidovicianus) ^iS 

 7. — Genus : Marmots Proper {Arc- 



iomys) 318 



Bobac (^A. bobac) 318 



Alpine Marmot (A. marmota) 320 

 Woodchuck [A. fnonax) . . 321 

 Rocky Mountain Marmot {A. 



flaviventor) 321 



Hoary Marmot (A. pruinosus) 321 



Second FamiIiY: Dormice {Myoxidce). 

 I. — Genus: 'Pa.tTiottn.\cs(Myoxus) 321 



Ivoir (M.glis) 321 



Lerotin {M. dryas) .... 322 

 2. — Genus : Lerots {Eliomys) . . . 322 



Lerot (£. nitela) 322 



3.— Genus: Dormice Proper (Mus- 



cardinus) 322 



Common Dormouse (M. avel- 



lanarius) 322 



Third Pamii,y: Beayers (Coi^nA^) 323 

 Genus : Beavers (Castor) . . 323 



Beaver (C fiber) 323 



Canadian Beaver (C canaden- 

 sis) 324 



Fourth Famhy: Jerboas {Dipodidce)i2-i 

 Jumping mice (Jaculims) ...... 328 



I. — Genus : Jumping Mice (Jaculus) 

 Jumping Mouse (y. hudsofiius) ^28 

 TRUE JERBOAS {Dipodina) .... 328 



2. — Genus : Jerboas Proper (Dipus) 



Egyptian Jerboa (D.agypticus)2,2& 

 3. — Genus : Alactagas (Scirtetes) . 329 



Alactaga {S. jaculus) 329 



JUMPING HARES (Pedfiince) 328 



4. — Genus : Jumping Hares (Pedetes) 



Jumping Hare ( P. to^^r) . . .330 



Fifth Famhy: l&.\(iQ {Muridi^) . .330 



RUNNING MICE (Merionidiniz) . . 332 



I, — Genus : Sand 'B.ats(Psammomys) 332 



Sand Rat (P. obesus) 332 



THE MICE PROPER {Murines) .... 332 



2. — Genus : Mice (Mus) 332 



Egyptian Rat (M. alexandri- 



nus) 332 



Hamster Rat (M. gambianus) 332 

 Black '&.a.t(M. raitus) .... 333 

 Brown Rat (M. decumanus) . 333 

 Common Mouse (M. musculus) 336 

 Wood Mouse i^M. sylvaticus) . .336 

 Old World Meadow Mouse (M. 



agrarius) 337 



Harvest Mouse (M. minutus). 339 

 *Barbary Mouse {M. barbarus\ 337 

 3. — Genus : Cotton Rats (Sigmodon) 336 

 Cotton or Rice Rat (5. hispi- 



dus) 336 



4. — Genus : Wood Rats (Neotoma) . 336 

 Florida Wood Rat (N. flori- 

 dana) . . .... . 336 



PAGE 



California Wood Rat {N.fusci- 



pes) 336 



Gray Wood Rat {N. ctnereus) 336 

 INDIGENOUS AMERICAN MICE . . 340 



5. — Genus : Western Mice (Hespero- 



mys) 340 



White-footed Mouse (H. leuco- 



pus) 340 



Golden Mouse (^H. aureolas). 340 

 Michigan Mouse (//. michi- 



ganensis) 340 



California Mouse (H. califomi- 



cus) .... 340 



Missouri Mole Mouse (//. leu- 



cogaster) 340 



Rice-field Mouse (H. oryzo- 



tnys) 340 



THE HAMSTERS {CricetincB) 340 



6. — Geuus: Hamsters (CWr^/ai) . .340 

 Common Hamster ( C./rumen- 



iarius) 340 



Sixth Family : Yoles {Arvicolida) 344 

 I. — Genus ^ Muskrats (Fiber) . . .344 

 Muskrat (F. zibethicus) . . . 344 

 2. — Genus: Voles Proper (r:/>-i'«(»/a) 345 

 Water Vole (A. amphibius) . . 345 

 Snow Mouse (^A. nivalis) . 346 

 Bank Vole (A glareolus) . . . 346 

 Field Vole (A. agrestis) . . . 347 

 Red Vole (A. ruiilus) . . . 347 

 American Meadow Mouse (A. 



riparius) 347 



Campagnol (A. arvalis) . . . 347 



Root Vole i^A. oeconomus) . . 348 



3.— Genus : Lemmings (Myodes) . 348 



Lemming (M. lemmus) . . . 348 



4. — Genus : Lemming Voles (Syn- 



aptomys) 350 



Lemming Vole {S. cooperi) . 350 



Seventh Famii,y : Mole Eats (Spa- 



laddcB) 350 



Genus : Mole Rats (Spalax) .... 351 

 Common Mole Rat [S. iyphlus) 351 



Eighth Family : Pocket Mice (Sac- 



comyida) 352 



POCKET mice PROPER (Saccomyinis). 

 I. — Genus : Leaping Pocket Mice 



(Dipodomys) 352 



Ord's Pocket Mouse (D. phi- 



lippii) 352 



2. — Genus : Kangaroo Rats{/i?n?g-«a- 



thus) 352 



Brush Tailed Pocket Mouse (P. 



penicillatus) 352 



Greater Pocket Mouse (P./as.- 



ciatus) ... 352 



Coarse-haired Pocket Mouse 



(P. hispidus) 352 



3.— Genus : Least Pocket Mice (Cri- 



cetodipus) . . 352 



Hopping Mouse ( C. yfaz/aj) . .352 

 Little Hopping Mouse (C. par- 

 vus') .... 352 



THE GOPHERS (Geomidce) 352 



4. — Genus: Go'phsrs (Geomys) . . . 352 

 Pouched Gopher (C bursarius)z$2 

 Southern Gopher (C tuza) . . 353 

 Chestnut-Cheeked Gopher (G. 



castanops) 354 



Qa&chiX (G. hispidus). . . . 354 

 Mexican Gopher {G. mexica- 



nns) • . 354 



5. — Genus : Pocket Rats (7%owowi'.s)354 

 Common Pocket Rat (T. tal- 



poides) 354 



Rocky Mountain Pocket Rat 



( T. clusius) 354 



Ninth Family : Porcupines (Hys- 



irichidcs) 354 



I. — Genus : Porcupines Proper {Hys- 



trix) . .354 



Common Porcupine {H. Cris- 

 tata) . . 354 



P.AljIl- 



2. — Genus : Brush-tailed Porcupines 



(Atherura) 35S 



'Brush-tailed Porcupine (A. 



africaua) 358 



TREE OR CLIMBING PORCUPINES ( Cif*'- 



colabince) 356' 



3. — Genus : Climbiug Porcupines 



(Erethizon) 356 



Urson (E. dorsatum) 356 



4. — Prehensile-tailed Porcupines 



(^Cercolabes) 2>5^ 



Mexican Porcupine (C, nova 



hispania) 358- 



Couiy {€. villosus) ... . 358 



Coendou (C. prehensilis). . . . 359 

 Tenth Family: Cavies, or Gninea 



Pig Family (CaviidcB) 359' 



I. — Genus : Guinea Pigs (Cavid) . . 359 

 Guinea Pig (C. porcellus) . . . 360 



Aperea (C. a/^y^a) 360 



Peruvian Cavy (C£'«^/^y/) . .360 



2. — Genus : Maras (Dolichotis) . . . j,(i2 



'M.&ra.(D. patagonica) .... 362 



3. — Genus : Agoutis (Dasyproctcz) . 362 



Common Agouti (D. aguti) . . 362 



4. — Genus: Pacas (Ccelogenys) . . . 365 



Paca ( C. paca) 365 



5. — Genus : Water Pigs (Hydrochce- 



rus) . 



Water Pig (jEf. capybara) . . . 364 

 Eleventh Family : Octodons (Octo- 



dontidce) 366 



I. — Genus : Octodons Proper (Octo- 



don) 367 



Degu (O. cummingii) . . . 367 

 2. — Genus : Nutrias (Myopotamus) . 367 



Coypu (M. coypu) 367 



3. — Genus: Ground Pigs (Aulacodus) 369 

 Ground Pig (A. sztdnderianus) 369 

 Twelfth Family : ChihchillaB (La- 



gostomidce) 369 



I. — Genus : Chinchillas Proper (Eri- 



otnys) 369 



Common Chinchilla (E. chin- 

 chilla) 369 



Smaller Chinchilla (E. lani- 



gera) 369 



2. — Genus : Lagotis (Lagidium) . . 370 



Cuvier's Lagoti (L. cuvieri) . 371 



3. — Genus : Viscachas (Lagostomus)yjt 



Viscacha (L. trichodactylus) . 371 



Thirteenth Family : Hares (Lepor- 



idce) 372 



1. — Genus : Hares (Lepus) . . . . 374 

 Common Hare (L. vulgaris) . 374 

 -llpine Hare (L. timidus) . . 375 

 Irish Hare (Z,. hibemicus) . . 375 

 Polar Hare (Z.^/a«WM) . . .378 

 Rabbit (L. cuniculus) .... 376 

 American Varying Hare (L. 



americanus) 378 



Virginian Varying Hare (/.. 



amer. virginianus) .... 379 

 Washington Varying Hare (L. 



amer. washingtonii) . . . 379 

 Northern Prairie Hare (L. cam- 



pestris) 379 



Texas Hare (L. callotis) . . . 379 

 Californian Hare (L. califomi- 



cns) 379 



Swamp Hare (L. aquaticus) . 379 

 Marsh Hare (L. palustris) . 379 

 Cotton Tail (L. sylvaticus) . 379 

 Sage Rabbit (Z,. artemesia) . 379 



THE CRYING HARES OR PIKAS. 

 2. — Genus : Crying Hares (Lagoinys)zT) 

 PLmtrica.nV\ka.(L. princeps) .379 

 Alpine Crying Hare (L. al- 



pinus) 380 



Fourteenth Family : Bristled 



Mice (Lophiomyidce) 30f 



Genus : Bristled Mice (Lophi- 



omys) 307 



*Skull-cap (L. imhausii) . . 307 



