A SYNOPSIS OF THE MAMMALS OF NORTH AMERICA AND THE ADJACENT SEAS, ELLIOT 1901

A SYNOPSIS OF THE MAiMMALS ' 'I NORTH AMERICA AND THE ADJACENT SEAS l!V Daniel I'.R.S.M., etc CjIKai d Ei.i.ioi, Curator of Department ZOOLOGICAL Vnl Chicago, SF.RIES 11 I' 1901 S A I' T ' ' f PREFACE This Synopsis is an attempt to bring together all the forms of North American Mammals that have been described, and which are generally considered as entitled to those inhabiting North America and some kind its All of recognition adjacent seas between the North Pole and the United States and Mexican Boundary have been included It is very manifest to many Naturalists that too many forms have been given distinctive rank, and without doubt a considerable number of the so-called species and subspecies contained in this volume will eventually swell the list of synonyms, already sufficiently formidable In late years there has been an evident inclination among some Mammalogists to unduly magnify, as it would seem, trivial dissimilarities observed among their specimens and thus greatly increase the number of slightly differentiated individuals elevated to a separate rank, at the risk of reducing the science to one founded on labels localities, instead of distinctive and prominent characters, and thus a knowledge of the place where an e.\ample was obtained becomes at times of more importance for its identification than are the and differences that may separate blances often observed it among from crania The its allies is lack of resem- frequently but the individual variations of a type, and taking these for the characters upon which new species is apt to lead into error, and in not a few instances too much reliance has been placed upon such slight differences The same ma\' be said of shades of color, and not a few names in this Synopsis have been given to specimens so closely alike, that one author, in speaking of his Key which was intended to be the means for distinguishing the species, has been obliged to say: "It to establish a will be /'/ necessary to have both skins and skulls hand, and even then in U'lN b( impossible to identify some of the forms without actual comparison 'iOilh The their nearest allies."* scientific value of such species (?) can only be very questionable at the best, and the elevation to a separate distinctive rank of such intimately related creatures, can not be considered as helpful or beneficial to Mammalogical Science safely asserted that there is It hardly a genus of North Vmerican can be Mam- mals that does not contain too many named forms, and that the science would be benefited if a considerable number were relegated •Bailey; Revision of Am \"ol Peromyscus canadensis 128, Peromyscus c abietorum Peromyscus c nubiterrae Peromyscus c umbrinus Peromyscus canus Peromyscus cognatus Peromyscus dyselius Peromyscus eremicus 136, 137, Peromyscus e arenarius Peromyscus floridanus Peromyscus gossypinus 126, Peromyscus g mississippiensis Peromyscus g nigriculus Peromyscus g palmarius Peromyscus gracilis Peromyscus herroni 132 125 125 125 125 134 128 141 135 134 133 135 132 133 138 129 128 129 129 132 127 138 140 36 138 127 Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromyscus Peromvscus peronii h nigellus 138 insolatus 135 128 insulanus keeni 133 leucopus 125 125 macrorhinus major maniculatus mearnsi megacephalus 133 137 megalotis 139 131 132 127 michiganensis m pallescens 140, 141 140 myoides 128 niveiventris 141 142 nuttalli 140 oreas 134 142 138 phasma robustus rovvleyi r 134, pinalis 135 135 rufinus 126 sitkensis 134 136 142 Stephens! subgriseus s baliolus 142 s arenarius 142 s rhoadsi 142 tay lori 141 texensis 130 t arcticus t dementis 131 130 t gambeli medius t nebracensis 130 t saturatus 131 t subarcticus t 130, i 31, 138 130 131 125 139 tornillo truei t crinitus t nasutus 139 t scitulus 430 40, (Delphinapterus) perpallidus (Thomomysi 127 personatus (Geomys) personatus (Sorex) 127 perspicillatus 128 Petrorhynchus petulans 124, myodes 127 137 137 insignis 366,368, (Lagenorhynchus) (Sciurus 429 29 229 220 376 25 16 h.) 426 Page (Haplodontia) [ihaea I (Lepus laeonotus laiops 114 (Spermophilus) l>liaeognathus a.) 273 410 (V'espirtilii)) (Peromyscus) I'henacomys riienacomys cclatus Phenaconiys constablei phasiua Phenacoiiiys c 142 167, 169, 167 l6c) i6q 168 167, 168, 169 168, 169 168 Phenacomys ungava phenax (Spilogale) Philander philips! (Dipodomys) Phoca Phoca albicauda Phoca albigena Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca albiiii 20 Phy seter 364 362 Physeter niacrocephalus Physeteridae Physeterinae picinus (Erethizon d.) 11 (Balaenoptera) desniaresti 364 pilayi dimidiatus 364 pdosus (Erethizon) discolor 364 pinalis (Peromyscus dorsata 364 Pinemys 362 pinetis (Geoniys) 364 pinetis (Lepus 14 14 431 78 V.) (Phoca) 364 264, r.) 265 135 grypus 361 hispida 364 Pipistrellus lagura 364 largha 363 364 15 14, (Tamias m.) (Didelpliys pinetorum pinetorum pinetorum Pinnipedia 364 13 14 pigra groenlandica 20 362 362 20 20 physalus 364 362, 24 21 418 pictus 'hoca fasciata 20 20 425 364 363 20 359 360 I'hoca frederici 361, Phocaena lincata Phocaena vomerina 362 I 357 363 (Delphinus) cristata 'hoca faetida 363 (Del phis) anneleta barbata 364 364 231 331 361, phocaena phocaena 364 Phocidae Phyllostomatidae Physalus 169 I'hoca eqiiestris Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca Phoca 430 430 Phenaconiys interniedius Phenaconiys latinianus Phenaconiys longicaudus Phenacomysolynipicus Phenaconiys preblei Plienacomys puniilus 430 169 crassus Phenacomys orophilus 89 Page Phoca pilayi Phoca schreberi Phoca scopulicola Phoca semilunaris Phoca ursina Phoca variegata Phoca vitulina Phocaena Phocaena brachyciuni Phocaena communis Phocaena crassidens Phocaena dall! 78 215 g.) 285 (Microtus) 198 158 (Neotoma) (Thomomysm) 225 355 408 Pipistrellus carolinensis 409 Pipistrellus erythrodactylus 409 409 lepechini 359 362 Pipistrellus hesperus Pipistrellus merriam! 409 leporina 362 Pipistrellus subflavus 409 littoria 363 Pipistrellus niulleri 364 pipistrellus naurica 362 piscator nautica 362 pittekajensis nigra 364 Pitymys oceanica 364 362 plagiodoii 363 platyrhynchus leonina parsons! peals! s 408, obscurus (Wspertilio) 409 408 (Mustela) (Halaena) platyrhinus 337 (Prodelphinus) (Sorex) (Sorex) 7S, 31, 197 32 367 366 Page Plecotus 3q8 (Spermophilus poadromus (Lepus) pomeegra (Delphinus) plesius prasinata (Microtus u.) (Condylura) pratensis (Microtus) pratensis (Spermophilus popofensis 427 e.) 272 28 s.) 96, Praticola (Phenacomys) preblei (Onychomys prepallidus pribilofensis pricei pricei 168, t.) (Sorex) (Perognathus (Tamias t.) p.) (Ochotona) princeps 267, psora pulverulentus 97 pum us ulatus 122 punc Pusa 376 Puto: Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Prodelphinus Promops Promops 319 319 318 Putor us Putori us 315 32 crotophiscus 31 Putori us nigrescens doreides 30 Puto us nigripes doris 32 Putori us noveboracensis 30 Puto 30 clymene dubius euphrosine euphrosnoides fraenatus 30 pruinosus 422 177 106, (Lasiurus) 107 Psammomy s 413 78 Pseudorca Pseudorca crassidens 22 23 22, 35' 351 351 348, oribasus 349 348 340 434 us lutensis us muricus 338 341, 342 346, 347, 348 us n notius 346 Putori us n occisor 347 Putor us peninsulae Putor us streatori Putor us vison Putor us V energunienus Putori us V ingens Putor us V lutreocephalus Putor us V vulgivagus Putor us vulgaris Putori us washingtoni Putor: us xanthogenys 30 421, 3SO, putor: us tethyos (Evotomys) (Arctomys) 344 344 348 32 30 californicus 345 30 styx pruinosus 344, 348 348 30 421 proteus 343, Putor us r eskimo Putor us saturatus Putor us spadix marginatus normalis 31, 351 338 32 32 plagiodon 346 349 346, Putor: us rixosus 32 frontalis novae-zelandiae 327 347 345 30 - us 363 348, neomexicanus haidarum us longicaudus 168 345> f Putor Putor Putor Putor 293 338 349 Putori us arcticus 317 107 41 a striatus Putor us arizonensis Putor us a kadiacensis Putori us canadensis Putori us cicognani Putor us c alascensis Putor us c richardsoni Putor us erniinea Putor us f renatus 317 315 ^54,361 70 269 317 407 • (Odocoileus) Putor us 319 215 • (Phenacomys) Putor: us alleni 317 317 23 • • 253 Procyon Procyon lotor Procyon elucus Procyon hernandezi Procyon pncificus Procyon pallidas Procyon nivea Procyon psora Procyonidae Procyoninae • (Lasionycteris; (Felis) 169 202 317,318, puma 23 23 Pteromyinae 178 260 • (Procyon) 188 3g5 I7g (Zapus) principalis (Microtus) princeps Pseudorca destructor Pseudorca grayi Pseudorca meridionalis Pseudostoma 345 (Spilogale).327, 328, 329, Putori us X mundus Putor us X oregonensis 333 345 338, 339 340 340 339 340 347 349i 344 348 350 350 350 • pygarga (Ovis) pygmaeus (Evotomys) quadratus (Thonioniysi 328 v.) icx? Raiigifer Rangifer arcticus Rangifer caribou Rangifer dawsoni Ratigifir groenlandicus Rangi-fer hastalis Rangifer montanus Rangifer tarandus Rangifer t sylvestris Rangifer terraenovae (Bassariscusa.i rattus (Mus) ravus (Microtus rcctipinna rcgalis 394 71 Kachianectes Rachianectes glaucus radiata (Condylura) raineri (Haplodontia r.) ramona (Onychomys) raptor "51 75 (Spilogale) (Sciuropterus querceti Reithrodontomys montanus Reithrosciurus Rhinaster rhinodon (Delphinapterus) 225 quadrimaculatus (Tamiasi (Tamias) quadrivittatus quaterlinearis 46 176 117, c.) Reithrodontomys Reithrodontoinys arizonensis Reithrodontomys a aurantius Reithrodontomys aztecus Reithrodontomys carolinensis Reitluodontomys chrysotis (Microtus) (Odocoileus) richardsoni I 121 richardsoni ( 35 37 35 36 37 richardsoni (Sciurus richardsoni (Sorexj richardsoni (Sperniophilus) richardsoni (Ursus) 92 313 ringens (Spilogale) 329 35 riparius (Microtnsl Putorius 35 rivularis (Microtus m.) 36 rixosus roanensis iiS robustiis 368, 369 179 25 213 z.) 184 345 (Zapus i.) Peromyscus) ( 263 138 Rodentia 50, 22 432 roosevelti 148 153 rosniarus 153 rostratus 151 rostratus 148 rowleyi 426 (Cervus) 34 (Balaenopterai ro'n|ual rostrata (Agaphelusi (Hyperoodon) (Peron)yscus) rubellus 15, 16 134, 135 Lasiurus) ( (Neotoma rubida '3 358 (Trichechus) (Balaenopterai 412 156 c.) (Lasiurus) rubra rubricaudatus rubricosa 412 (Sciunisi 52 i\"ulpes p.i rufa ( Anisonyx rufa ( Felis) 305, 434 297, 299 112 1 296, (Haplodontia) (Microtusi (Thomomys) (Thomomys t.) rufescens rufescens rufidorsum rufinus 151 rutiventer 150 rufus (Canis) rufus (Lasiurus) I (Peromyscusj rupicola 221 227 180 Microtus) 153 (Sciurus) (Neotoma) 12 180 rufescens 152 154 344 64 367, (Putorius) 316 inter 41 iGrampusi (Fiber rufa 201 238 h.) rivalicus 200, c.) rissoanus 150 211 h.) Perodipus) 36 35 Reithrodontomys humulis 148, i4g, 150 Reithrodontomys klaniatheiisis 152 Reithrodontomys laceyi 153 Reithrodontomys lecontii 148, 149 Reithrodontomys dickinsoni 150 Reithrodontomys impiger 149 Reithrodontomys loiigicaiidus 153, S richardsoni 151 150, Rhytinas gigas (Dicrostonyx richardsoni 152 'SI 152, 142 112 150 Reithrodontomys pallidas Reithrodontomys megalotis Reithrodontomys nicrriami Reithrodontomys mexicanus medius 50 173 ( 395 Reitlirodontoiiiys deserti 359 richardsoni Reithrodontomys dychei RcitlirodontOMiys d ncl)racensis 19 Rhinophora Rhmosciurus rhoadsi (Evotomys g.) rhoadsi Peromyscus s.) 9 11)3 (Orcinus) (X'ulpes) 50 , 126 52 300 412 166 FaiiK 44 ' -fi I~r~c ? ScapsTtn? xaeaiaia 5 - - ~^- j^ i^ - >ca.pmi;c> iijj SCa.phkir < oj, 10& - toe sdiisticeps ar sch'wet-Bi r:S *7« a«a JS C- : «rv- - ;: - '- sc sc: : ^^ a; >c >c r^4 Sc3aii.f»uriJi K>5 So ui^aaa us agjciiMes :u 54* Sc S3 4»« iv- ^v^ ^v »«»^ 5>r i»» >c AT ?f7 ^v'c: ,i; 9» iJSf !f~ -:f >ằ L ^ - 1:3- _ .M7,ôaS Jao Ill ia&i««, no -rs TTJ ' 4J« i \ — I ' j£cS!3VS^ Sciar-.is iiy-^ ^c^s^^s ^ ?«airsx 55 ^oe«x 4IDf Seed ~- jrf Scnex -roi ScMoptiliss scrodans (,Ves^ — scrutiror Mepfer ? Se;>~snis semilnaiTis^ Pbocs - 413 i Serex -«mj».— Page Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex Sorex alascensis g 372, 373 shumaginensis haydeni 373 367 hoyi 377 idahoensis 367 leseuri 366 g longirostris 375 369 376 niacrurus merriami m miscix montereyensis nevadensis obscurus o longicaudus 376 367, 373 371 369, 371, 372 372 ornatus 374 375 pacificus parvus personatus 368 366, p streatori 368, 376 367, 376 platyrhinus 367 366 platyrhynchus 376 pribilofensis richardsoni 367, 368, 369 369 374 setosus shastensis sphagnicola 368 suckleyi 370 talpoides 381 tenellus t 374 nanus 375 375 trowbridgei 373 tundrensis 368 vagrans V dobsoni V monticola 370, 369, 371, 372 370 371 V similis 372 vancouverensis 371 Soricidae 366 Soriciscus 382 sornborgeri iL'rsus a.) sowerbianus 314 28 (Delphinusi (Mesoplodoni sowerbyi (Mesoplodon) spadicipygus (Sigmodoni sowerbiensis 17, 18 , spadix 145 (Putorius) 348 (Fiber) 214 72 spatulus (Tamias) speciosus spectabilis speleus 18 (Dipodomys) 234 (Odocoileus) Spermatophilus Spermophilus 38 81 81, 427 Spermophilus armatus Spermophilus barrowensis Spermophilus beldingi Spermophilus beringensis Spermophilus brevicaudus Spermophilus californicus Spermophilus canadensis Spermophilus canescens Spermophilus castanurus Spermophilus chrysodeirus Spermophilus c bernardinus Spermophilus cinerascens Spermophilus columbianus Spermophilus couchii Spermophilus cryptospilotus Spermophilus elegans Spermophilus empetra Spermophilus e kadiacensis Spermophilus e plesius Spermophilus erythroglutaeus Spermophilus franklini Spermophilus grammurus Spermophilus g beecheyi Spermophilus g buckleyi Spermophilus g douglasi Spermophilus g fisheri Spermophilus guttatus Spermophilus harrisii Spermophilus h saxicolus Spermophilus hoodi Spermophilus interpres Spermophilus kennicotti Spermophilus lateralis Spermophilus cinnamomeus Spermophilus saturatus Spermophilus leucurus Spermophilus mexicanus Spermophilus m parvidens Spermophilus microspilotus Spermophilus roohavensis Spermophilus mollis Spermophilus m canus Spermophilus m stephensi Spermophilus m yakimensis Spermophilus neglectus Spermophilus nelsoni Spermophilus obsoletus Spermophilus oregonus Spermophilus osgoodi Spermophilus parryi Spermophilus phaeognathus 93 91 94 91 84 88 89 97 84 84 S4 83 91 88 97 94 89, 427 90 427 qI lOi 87, 88 88 89 89 88 92 85 86 100 86 89 82, 83 85, 83 86 98, 99 85 95, 99 96 98 92, 93 93 93 93 98 87 95 94 9< 89 89 Page Sperinophilus richardsoni 92 Sperniophilus r townsendi Spermophilus spilosoma 94 Sperniophilus s 96, antiectens Spermophilus s major 96, Spermophilus s obsidianus Spermophilus s pratensis 0, Spermophilus tereticaudus Sperniophilus townsendi 92, Spermophilus tridecemlineatus Spermoiihilus t t t 97 07 97 strcatori (Perodipus) streatori (Putoriusi streatori (Sciurus 97 streatori (Sorex 97 striatus (Putorius 98 striatus (Taniias) 94 strongyloceros subarcticus 101 subauratus (Sciurus) 100 subcinctus (Lepus sphagnicola (Synaptoniys) 101 subflavus io[ subgriseus 84 subsolanus 368 206 327 332 Spilogale Spilogale anihavarlis Spilogale bicolor 328 Spilogale gracilis 330 329 Spilogale indianola Spilogale interrupta 328 Spilogale leucoparia Spilogale olympica 329 332 Spilogale phenax 33^ Spilogale puiorius 327 3=8, 3-9i arizonae 331 Spilogale p latifrons Spilogale quaterlinearis 331, Spilogale saxatilis (Spermophilus) (Perognathus) ^pinatus Perognathus spissigrada (Mephitis) splendens (Nentmnai spilosoma spilotus stelleri Kirampus) (Eumetopiasi stelleri (Latax) stearnsii 332 328 329 330 S|iilogale ringens ( 333 Stemmatopus -lenorhynchus (Orcmus) Stephens! (Perognathus) Ntephensi (Peromyscusi stipheiisi (Sciuropterusi >tephensi (Spermophilus m.) 96, 97 251 255 326 158 25 I'eromyscus 52 2S3 (Felis c (Sciurus) suckleyi (Sorex) 206 402, sylvestris ( Raugifer 65 t.) Synaptomys Synaptomys cooperi 205 205, 206, 430 Synaptomys i 206 204 430 206 203 206, 206, Synotus 207 207 398 (Scapanus) taeniata tajacu 205 204 niedioxinus Synaptomys sphagnicola Synaptomys stonei Synaptoniys true! Synaptoniys wrangeli 301 (Dicotyles) talpoides (Sorex) (Thomoinys) 253 Talposorex 136 Taniias 47 430 204, tal]ioides (Ovis^ 203, 203,204, Synaptoniys h gossi Synaptoniys innuitus 22 stonei 35 178 Synaptomys dalli Synaptomys fatuus Synaptomys helaletes 354 360 181 14 156 Sylvicola (Blarina) (Microtusi 405 370 (Balaenoptera) (N'eotoma ni.) Talpidae stoiiei 142 ) (Myotis) talpoides 93 409 (Peromyscus) suckleyi surberi 30 (Pipistrellus) subulatus sulfureus 14 131 t.) f.) 355 iii 274 (Balaenoptera) (Prodelphinus) Styx (Sorex) 34 a.) 101 s|>hagnicola p 80 loi ( 376 327 (Cervus) badius olivaceus 100, (>i a.) alleiii Spermophilus t pallidus Spermophilus t ])arvus Spermophilus t texensis Spermophilus wortmani Spilogale 345 367, styiiegeri 100, 159 237 h.) (Lepus struthopus 203 p.) lOI (/;, Spermophilus SpermophiUis 100, Pa.;e (Synaptomys) streatori (Xeotoma f.) stonei 33 386, Tamias americanus Taniias amoenus Tamias callipeplus Tamias c inyoensis 435 382 381 237 381, 67, 68, 388 426 80 74 73 73 INI 408 Tamias caniceps Tamias caurinus Tamias cinereicollis Tamias dorsalis Tamias d utahensis Tamias frater Tamias griseus Tamias lysteri Tamias macrorhabdotes Tamias merriami Tamias minimus Tamias m alpinus Tamias m consobrinus Tamias m melanurus Tamias m pictus Tamias oreocetes Tamias palmeri Tamias panamintinus Tamias quadrimaculatus Tamias quadrivittatus Tamias q affinis Tamias q borealis Tamias q felix Tamias q gracilis Tamias q luteiventris Tamias q neglectus Tamias q pallidus Tamias senex Tamias speciosus Tamias striatus Tamias s venustus Tamias townsendi Tamias t cooperi Tamias t hindsii Tamias t ochrogenys Tamias t pricei Tamias umbrinus Page 426 74 75 68 ' 77, (Rangifer) 71 terraenovae 71 Terricola 78 tesselatus (Lasiurus) 412 Tetramerodon 70 tetramerus 79 texensis (Felis 80 69 74 texensis texensis (Geomys) LepusJ texensis (Odocoileus 71 texensis (Oryzomys 75 texensis (Peromyscus) 77 texensis (Scalops 427 texensis 76 texensis 76 texensis (Sigmodon h.) (Spermopbilus (Urocyon 76 Thalassarctos 78 Thalassarctus 68 thicolea 70 35 3«9 321 321 321 320 320 b.) 413 (Lepus) 278 13 118 36 Prodelphinus) 7S 75 182 178 tethyos 71 163 98 (Spermophiliis) 79 70 404 154, (Microtus) (Lasiurus telmalemonus 68 (Myotisi terraenovae 141 teliotis Tenotis tereticaudus 69 375 259 81 (Peromyscusj (Ralaenoptera) tectorum (Mus) tectirostris 374 80 taylori (Zapus) 73 81 320, tenellus Teonoma 60 Taxidea Taxidea americana Taxidea a neglecta Taxidea a berlandieri Taxidea jeffersoni Taxidea labradoria (Sorex) tenuidorsalis 69 (Rangifer) tarandus Tatusia 384 (Blarina) tenellus 69 72 72 80 Tamiasciurus telmalestes I 30 79 190 (Microtus) 298 r.) 219 288, 289, ( 290 40 a.) 147 p.) 130 a.) 390, 391 144, 145, 146 308, 309 loi t.) o (Lagenorhynchus) 309 310 26 221 Thomomys Thomomys alpinus 229 Thomomys altivalis 230 228 Thomomys angularis Thomomys aureus 229 Thomomys borealis 224, 227 Thomomys bottae 222, 223 Thomomys bulbi vorus 222, 223 Thomomys cervinus 230 Thomomys clusius 229 226, 229 Thomomys douglasi 226 Thomomys d fuscus 226 Thomomys d yelmensis Thomomys fossor 230 Thomomys f ul vus 227, 228, 229 228 Thomomys intermedius 228 Thomomys f nigricans Thomomys laticeps 223, 324 223 Thomomys leucodon Thomomys ma/ama 225, 226, 227 Thomomys melanops 227 Thomomys monticola 225, 230 Thomomys m pinetoruni 225 226 Thomomvs nasicus f Paue 'riiimiomys nevadensis Thomoniys operarius rhomoinys o pallescens rhoniomys perpalliilus rhommiiys quadratus Thomomys 224 239 Tursiops cymodice Tursiops eurynonic Tursiops gilli Tursiops metis Tliomomys talpoides 227 Thomomys Thomomys 224 ubericolor 227 rufescens (Myotise.i (Lepus) (Peromyscus) tornillo (Onychomys) torridus (Corynorhinus m.) townsendi (Microtus) townsendi (Scapanus) (Spermophilus) (Spermopliilus r.) (Tamias) 406 2f)9, 2/1 umbrinus umbrinus umbrinus 125 unalascensis (Dicrostonyx 123 unalascensis (Microtus 400 ungava (Evotomys) ungava (Phenaconiys) Ungulata ungulatus Uicrostonyx (Dasypusi uni-cinctus 399, 190 townsendi townsendi 39ii 392 92, 94 94 69 (Thomomys) 224 lUrocyonc.) transitionalis (Lcpus f.) 309 townsendi 281 358 Iricheclius Trichechus arcticus 358 Triclieihus cookii 358 Trichechus diveri;ens Trichechus manatus Trichechus obesus Trichechus rosmarus Trichecidae trideccndineatus (Spcrmophihis) 358 358 358 357 (Zapus) trowbridgei (Lepus) trinotatus (Microtust trowbridgei (.Sorex) Iruei (Peromyscus) (Scapanus) truei (.Synaptomys) trUL-i truncatus tundrensis Ursinae ursinus 263 Ursus Ursus Ursus Ursus Ursus Ursus Ursus Ursus Ursus Ursus Ursus Ursus Ursus tursio tursio 186 373 139 393 206, 207 271, 272 29 (Lopus) (Sorcx) Tursio 368 • (Delphinus) (Tursiops) Tursiops Tursiops communis Tursiops compressicauda (Phoca) 123 (Tursiopst tschukschorum (Callotaria) ursina 28, 29 28 29 28 29 29 189 "75 169 33, 425 209 I 307 309 309 307 309 308 309 309 307 307 386 309 357 Ursidae ursina 208 281 h.i 188, Urotrichus gibbsi 207, 261,262, 75 (Thomomys) Urocyon Urocyon cinereo-argenteus.307, 308, Urocyon c californicus 308, Urocyon c tloridanus Urocyon c ocytlious Urocyon c scotti Urocyon c texensis 308, Urocyon c townsendi Urocyon griseus Urocyon virginianus lOI Trinodontomys trowbridj;ei 217 129 c.) ( 99, 100, iLemmus) trimucronatus 215,216, (Lepus f.) Peromyscus (Tamias) 401, 121, 122, townsendi townsendi townsendi (Geomys) tuza 227 townsendi Thonioinys umbrinus timidus 29 29 Tursiops tursio 221 thysanodes 2