vi CONTENTS 



CHAPTER XXXI. THE RODENTS, Order Rodentia. 



PAGE 



General Characteristics of the Order Teeth Mouth Distribution and Habits African 

 Flying Squirrels (Anomaluridce) The Squirrel Family (Sciuridce) Groove-Toothed 

 Squirrel (Rhithrosciurus) Spiny Squirrels (Xerus) True Squirrels (Sciurus) European 

 Squirrels Distribution North American Squirrels Oriental Squirrels Ground- 

 Squirrels, or Chipmunks (Tamias) Susliks, or Gophers (Spermophilus) Prairie- 

 Marmots (Cynomys) True Marmots. (Arctomys) Distribution Old World Species 

 American Species Allied Extinct Rodents Flying Squirrels Lesser Flying Squirrels 

 (Sciuropterus) Distribution and Habits Larger Flying Squirrels (Pteromys) Woolly 

 Flying Squirrel (Eupetaurus) Pigmy Squirrels (Nannosciurus) The Sewellels 

 (Haplodontidce) Common Sewellel (Haplodon) Californian Sewellel The Beavers 



(Gastoridce) European and American Species (Castor) Distribution of the European 



Beaver Range of the American Species Habits Fses and Trapping of Beavers 



Extinct Beavers, . .Go 



CHAPTER XXXII. RODENTS, continued. 



THE MOUSE-LIKE RODENTS. The Dormice (Myoxidce) Common Dormouse (Muscardinus) 

 Squirrel-Tailed and Garden Dormice (Myoxus) Tree-DormouseExtinct Dormice 

 Jumping Mice and Jerboas (Dipodidce) The Jumping Mouse (Zapus) The 

 Five-Toed Jerboas Kirghiz Jerboa (Alactaga) Afghan Jerboa Yarkand Jerboa 

 (Euchoretes) Broad -Tailed Jerboas (Platycercomys) Three -Toed, or True Jerboas 

 (Dipus) Habits of Egyptian Jerboa African Jumping Hare (Pedetes) The 

 Sminthus (Sminthus) The Mouse Tribe (Muridce) Australian Water - Rat 

 (Hydromys) Queensland Rat (Xeromys) Malabar Spiny Mouse (Platacanthomys) 

 The Gerbils (Gerbillus) Philippine Rat (Phlceomys) Hamsters and White-Footed 

 Mice (Cricetus) Common Hamster and Its Habits Species of White-Footed Mice 

 The Fish -Eating Rat (Ichthyomys) Grooved -Toothed Mice (Rhithrodontomys and 

 Rhithrodon) Wood-Rats (Neotoma) African Crested Rat (Lophiomys) The Voles 

 (Microtus) Water- Yole Short- Tailed Field- Vole Bank- Vole- Alpine Vole Other 

 Species Lemmings (Myodes) Banded Lemming (Cuniculus) Musquash (Fiber) 

 Mole-Like Voles (Ellobius and Siphneus) Rats and Mice (Mus) Brown Rat Black 

 Rat House - Mouse Long - Tailed Field - Mouse Harvest - Mouse Other Species 

 Bandicoot Rats (Nesocia) Bush-Rats (Golunda) Spiny Mice (Acomys) Jerboa-Rats 

 (Hapalotis) Lichtenstein's Rat (Mastacomys) Mole-Rats (Spalacidce) Great Mole-Rat 

 (Spalax) Bamboo-Rats (Rhizomys) Cape Mole-Rats (Bathyergus) Naked Sand-Rats 

 (Heterocephalus) American Pouched Rats (Geomyidce) Pocket- Gopher (Geomys) 

 Northern Pocket - Gopher (Thomomys) Kangaroo -Rats (Dipodomys) Pocket -Mice 

 (Perognathus and Heteromys), . . . . . . . .104 



CHAPTER XXXIIL RODENTS, continued. 



THE PORCUPINE-LIKE RODENTS. General Characters of the Group The Octodont Tribe 

 (Octodontidce) The Gundi (Ctenodactylus^The Degu (Octodon) The Tucotucos 

 (Ctenomys) The Coypu (Myopotamui)The Hutias (Capromys Plagiodon The 

 Cane-Rat (Aulacodus) Other Genera The Porcupines (Hystricidce) Canadian Porcu- 

 pine (Erethizon) Tree-Porcupines (Synetheres) Brazilian and Mexican Species Thin- 

 Spined Porcupine (Chcetomys)^?^ Porcupines (Hystrix) Brush-Tailed Porcupines 

 (Atherura) Giinther's Porcupine (Trichys) Chinchillas and Viscachas (Chinchillidce) 

 True Chinchillas (Chinchilla) Common Species Short-Tailed Species Cuvier's 

 Chinchilla (Lagidium) The Viscacha (Lagostomus) Description of a Viscachera 

 Agutis and Pacas (Dasyproctidce) The Argutis (Dasyprocta) Common Species Aguchi 

 The Pacas (Ccelogenys) Branick's Paca (Dinomys) The Cavies (Caviidce) True 

 Cavies (Cavia) Restless Cavy Cutler's Cavy Guinea-Pig Bolivian Cavy Rock- 

 Cavy Patagonian Cavy (Dolichotis) Carpincho, or Capivara (Hydrochcerus), . .154 



