IV BULLETIN 171, UXITEl) STATES NATIONAL MUSEUM 



Systematic description of vertebrate fauna — Continued. I'age 



Order Rodentia 53 



J'amily Sciuridae 53 



Marmola monax (Linnaeus) 53 



Citellus of. tridecemlinentus (Mitchill) 54 



Tamias of. slriatvs (Linnaeus) 54 



Sciurus ( Tamiascuirus) tenuidens Hay 54 



Glaucomys sp 56 



Family Geomyidae 57 



Plcsiolhomurnya polotnaceanis Gidley and Gazin 57 



Family Castoridae 59 



Catitor canadetisis Kuhl 59 



Family Cricetidae 59 



Pcroinyscvs cf. Iciicopns (Rafiuesque) 59 



Neoioma ynagister Baird 59 



Parahodomys spelaeus Gidley and Gazin 60 



tSynaptotnys cf . cooperi Baird 62 



Synoptoinys {Micto/nys) sp 63 



Microtui^ (ur Pilyttiys?) cf. iiivolutus (Cope) 63 



Ondatra cf . annectcns (Br( )\vn) 65 



Family Zapodidae 67 



Zapus sp 67 



Napaeozapus cf. i)i.tiignis (Miller) 67 



Family Erethizontidac 67 



Ercthizvn cf . dorsalnni (Linnaeus) 67 



Order Lagoniorpha 68 



Family Ochotonidao 68 



Odi ntona Bp 68 



Family Leporidae 69 



Lepus cf. americanus Frxleben 69 



Order Proboscidea 70 



Family Mastodontidae 70 



Man/ m id cf . americanum i.Kerr) 70 



Order Perissodactyla 70 



Family Kqnidae 70 



Equus fsp 70 



Family Tapiridae 70 



Ta pirns sp 70 



Order Artiodactyla 71 



Family Ta.yassuidae 71 



Platygoniis cumberlandensis Gidley 71 



Platygonus vetus{?) Leidy 82 



Myloh y us exortiv us Gidley 83 



Mylohyus cf . perms ylvanicu-s (Leidy) 86 



Family Cervidae 86 



Cervus sp 86 



Odocoileus cf . virginianus (Boddaert) 86 



Family Bovidae 86 



Euceralherium (?) americanum (Gidley) 86 



Literature cited 91 



Index 95 



