Xn BULLETIN 17 8, UNITED STATES NATIONAL MUSEUM 



Order Rodentia: Rodents — Continued. Page 



Family Myocastoridae: Coypus 490 



Genus Myocaslor Kerr 490 



Family Pedetidae: Cape jumping hares 490 



Genus Pedetes lUiger 490 



Family Rhizomyidae: Bamboo rats 490 



Genus Tachyorydes Riippell 490 



Family Sciuridae: Squirrels 491 



Genus Callosciurus Gray 491 



Genus Citellus Oken 504 



Genus Cynomys Rafinesque 521 



Genus Drcviomys Heude 522 



Genus Eutamias Trouessart 522 



Genus Glaucomys Thomas 533 



Genus Heliosciurus Trouessart 536 



Genus Hylopetes Thomas 537 



Genus lomys Thomas 537 



Genus Lariscus Thomas and Wroughton 537 



Genus Marmota Blumenbach 538 



Genus Menetcs Thomas 541 



Genus Microsciurus i. A. Allen 541 



Genus Nannosciurus Trouessart 542 



Genus Paraxerus Forsyth-Major 543 



Genus Petaurista Link 543 



Genus Petinomys Thomas 544 



Genus Protoxerus Forsyth-Major 544 



Genus Pleromys G. Cuvier 545 



Genus Ralufa Gray 545 



Genus Sciurus Linnaeus 551 



Genus Tamias Illiger 560 



Genus Tamiasciurus J. A. Allen 560 



Genus Tamiops J. A. Allen 562 



Genus Tomeutes Thomas 562 



Family Spalacidae: Mole rats 566 



Genus Myospalax Laxmann 566 



Genus Spalax Gueldenstaedt 566 



Family Thryonomyidae: Rush rats 566 



Genus Thryonomys Fitzinger 566 



Family Zapodidae: Jumping mice 566 



Genus Napaeozapus Preble 566 



Genus Sicista Gray 567 



Genus Zapus Coues 567 



Order Xenarthra: Edentates 569 



Family Bradypodidae: Three-toed sloths 569 



Genus Bradypus Linnaeus 569 



Family Dasypodidae: Armadillos 569 



Genus Cabassous McMurtrie 569 



Genus Dasypus Linnaeus 570 



Family Megalonychidae: Ground sloths 570 



Genus Acratocnus Miller 570 



Genus Parocnus Miller 570 



Family Myrmecophagidae: Anteaters.- 570 



Genus Cyclopes Gray 570 



Genus Myrmecophaqa Linnaeus 571 



