Vol. 6] Merriam: Virgin Valley and Thousand Creek. 



201 



PAGE 



Heteromyidae 255 



Diprionomys parvus Kellogg 255 



Diprionomys magnus Kellogg 255 



Leporidae 255 



Palaeolagus nevadensis Kellogg -. 255 



Lepus vetus Kellogg 255 



Ungulata 257 



Equidae 257 



Hypohippus, near osborni Gidley 257 



Parahippus, compare avus (Marsh) 261 



Meryehippus, near isonesus (Cope) 262 



Merychippus, near seversus (Cope) 264 



Pliohippus(f), sp. 265 



Equus(?), sp 265 



Rhinoeerotidae 266 



Aphelops(?), sp 266 



Teleoceras( ?), sp 267 



Chalicotheridae 267 



Moropus(f), sp 267 



Proboscidea 271 



Mastodon (Tetrabelodon '?, sp.) 271 



Suidae 272 



Prosthennops(f), sp. 272 



Thinohyus(?), sp 275 



Oreodontidae 276 



Merychyus( ?), sp 276 



Camelidae 277 



Cervidae 278 



Blastomeryx mollis, n. sp 278 



Dromomeryx, sp. a, near borealis (Cope) 280 



Dromomeryx, sp. b 281 



Dromomeryx, sp 283 



Antiloeapridae 284 



Merycodus, near furcatus (Leidy) 284 



Merycodus nevadensis, n. sp 284 



Splienophalos nevadanus Merriam 285 



Ilingoceros schizoceras, n. sp 292 



Ilingoceros or Sphenophalos 298 



Ilingoceros alexandrae Merriam 299 



Tragoceras( ?) or Ilingoceros 303 



