686 



INDEX 



Monte Hermoso age and 

 stage, 20, 129, 226, 479, 

 499, 508, 634 



Moose, 4, 65, 141, 151, 156 

 (fig.), 181, 202, 208, 411, 

 412, 413 



Moraine, Great Terminal, 

 131 



Moraines, 25 



■fMoropus, 238, 240 (res- 

 toration, 291, 356 (manus 

 fig.) 



■\Morphippus, 462 



Moschus, 412 



Mt. Hood, 121 ; Kenya, 

 134; Tacoma, 121 



Mountain Lion, 153, 168 



(fig.) 



Mountain ranges, as 

 barriers to mammals, 

 142; history of, 23 



Mouse, Jumping, 153, 160 



(fig.) 



Mouse-Deer, 54, 60, 358, 

 408. (<See also Chevrotains 

 and Tragulina) 



fMultituberculata, 642 



Mummies of Pleistocene 

 rodents, 40 



Muntjac, Indian, 412 



Muntjacs, 412, 414, 658 



Musk-Ox, 148, 149 (fig.) 

 202, 207, 211, 418 



Musk-Oxen, 27, 141, 208, 

 210 



Muskrat, 2, 151, 153, 182 



Muslela, 159 (fig.), 160 

 (fig.). 517 



Mustelid*, 174, 222, 265, 

 517, 518, 550. 553, 554; 

 John Day, 249 ; Mio- 

 cene, 238, 551; Old 

 World origin, 550 ; Pleis- 

 tocene, 551 ; Pleisto., 

 S. Amer., 213; Plio- 

 cene, 223, 551 ; South 

 American, 552 ; White 

 River, 254, 551 



Mustelines, see Mustelidse 



Mutation, 662 



Mycetes, 585 



tMvlagaulidffi, 222, 229, 

 233 



fMylagaulids, see fMyla- 

 gaulidse 



'\Mylodoii, 206, 212 (res- 

 toration), 219, 592, 597, 

 601, 602, 603 (restora- 

 tion), 604, 607, 608 (pes 

 fig.) 



tMylodontid*. 206, 592, 

 598, 602; Deseado, 610; 

 Santa Cruz, 605, 607, 

 609 



fMylodonts, see fMylo- 

 dontidae 



Myocastor, 184 



Myodes, 153 



Myrmecophaga, 91. 187, 



188 (fig.), 206, 355, 591, 



600 

 Myrmecophagidse, 591 

 Mystacoceti, 60 



Nasua, 162, 176, 213, 517, 

 546, 552 



Nasuas, 141 



Navicular, 88 



Navidad formation, 124 



fNecrolestidae, 245 



\ N ematherium, 592, 607 



Ncofiifa, 145 



Xc()K:fi<- realm, 146, 164 



'fXt'iihippari.on, 33, 291, 

 298 (restoration), 299 

 (skeleton fig.) 



fNeoplagiaulax, 627 



Neotoma, 153, 164 



fNeotragocerus, 362 



Neotropical region, 146, 

 147, 164, 170 (map), 

 322, 363, 418, 436, 461, 

 552, 583, 591, 630 



■\Nesodon, 243 (restora- 

 tion), 462, 467 (skull 

 fig.), 470 (restoration), 

 473 (pes fig.), 474, 475, 

 478, 482, 483, 498, 510, 

 511 



Neumayr, M., 663 



New Guinea, 634 



New York Zoological So- 

 ciety, 148, 149, 150, 

 151, 152, 154-169, 176- 

 180, 182, 183, 186, 188, 

 189, 190, 292, 389, 584 



Newfoundland, Pliocene, 

 125 



NewZealand,284; Miocene, 

 123 



Nicaragua, 218 



■\Nimravus, 249, 541, 542 

 ^ (skull fig.), 543 



Nomenclature, 50 



North America, the cir- 

 cumpolar area, 148 ; 

 mammals of, 145 ; zo5- 

 logical divisions, 146, 147 

 (map) 



tNotharctidffi, .578 



\Nolharctus, 578, 579 



fNothocyon, 530 



fNothrotherium, 592 



tNotohippidffi, 262, 462, 

 475 



X„tohippii.% 462, 476 



Xotopithi'cidce, 462 



ifA'utupitkccus, 462 



tNotostylopidse, 282, 462, 

 485 



fXoto.'^ti/lops, 462 



Notostvlops Beds, 20, 281 



Notoungulata, 461, 489 



Nova Scotia, Pliocene, 125 



Nyctipithecus, 578, 585 



Oaks, 102 



Ocelot, 176 (fig.), 212, 552 



Ochotona, 153 



Octodon, 184 



Octodontidse, 184 



fOctodontherium, 262 



Odocoilcus, 95 (molar fig.), 

 153, 162, 202, 208, 360 

 (molar fig.), 362, 413; 

 O. hemionus, 46 (fawns 

 fig.), 167 (fig.) ; O. vir- 

 ginianus, 166 (fig.), 179, 

 412 ; O. virg. osceola, 179 

 (fig.) 



Odontoceti, 60 



Okapi, 45 



Old World, 101, 258, 266, 

 295, 327, .331, 332, 335, 

 .341, 351, .353, .358, 386, 

 390, 413, 420, 426, 518. 

 550, 554, 558, 562, 583; 

 camels, 138; horses, 201 ; 

 mammals, 120, 121, 142; 

 separation from N. A., 

 146 



-fOligobunis, 517, 551 



Oligocene epoch, 17 ; 

 Europe, 324, 352, 370, 

 543, 552, 661 ; North 

 America, 113, 114 (map), 

 204, 224, 265, 287, 378, 

 576, 658 ; South 



America, 20, 117, 282, 

 456, 485, 508, 512, 625 



■\Omomys, 578 



fOnohippidium, 307 



Ontogeny, 648 



■fOodectes, 555, 558 



Opossum, 161 (fig.), 627; 

 Water-, 627, 631 



Opossum-like forms. Cre- 

 taceous, 638 



Opossums, 2, 58, 59, 141, 

 161, 249, 626. 627, 630; 

 Araucanian, 226 ; Bridg- 

 er, 268 ; Casa Mayor, 

 282; Cretaceous, 631; 

 Eocene, 631 ; European, 

 631 ; North American, 

 631 ; Oligocene, 631 ; 

 Paleocene, 631 ; Par- 

 ana, 227 ; Pleistocene, 

 221; Santa Cruz, 244; 

 South American, 190, 

 221, 631 ; White River, 

 251; Wind River, 274; 

 woolly, 631 



Opsiceros, 327, 329, 330, 

 332, 350, 351 



Orders, distribution of, 138 



Ordovician period, 15 



Oreamnos, 152, 158 (fig.), 

 202, 416 



'fOreodon, .379 



tOreodont, White River, 

 252 (restoration) , 259 

 (do.), 536 (do.) 



tOreodontida;, 250, 361, 372, 

 383, 384, 385, 404, 436, 

 652, 661 ; Eocene, 372, 

 381 ; grazing, 232 ; John 



