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Subspecies and Distribution. L. c. californicus Gray, 1837 — SW Oregon, and NW California (W USA). L. c. altamirae Nelson, 1904 — SE Tamaulipas (NE Mexico). L. c. asellus Miller, 1899 — SE Coahuila, NE, S Nuevo Leon, E & SE Zacatecas, San Luis Potosi, Aguascalientes, NE tip ofJalisco, N Guanajuato, and NW Querétaro (NC Mexico). L. c. bennettiz Gray, 1843 — SW California (SW USA), and NW Baja California (NW Mexico). L. c. curts Hall, 1951 — Is along the coast of Tamaulipas (NE Mexico). L. c. deserticola Mearns, 1896 — SE Oregon, S Idaho, SW Montana, NE & E California, Nevada, Utah except SE, and NW, W & SW Arizona (W & SW USA), and NW Sonora and NE Baja California (NW Mexico). The population in SW Montanais isolated. L. c. eremicus J. A. Allen, 1894 — S Arizona (SW USA), N Sonora except extreme NW, NW Chihuahua (N Mexico). L. c. festinus Nelson, 1904 — S Querétaro, Hidalgo, and N State of Mexico (C Mexico). L. c. magdalenae Nelson, 1907 — Magdalena I, Baja California Sur (NW Mexico). L. c. martirensis Stowell, 1895 —Baja California except NW & NE and NE Baja California Sur (NW Mexico). L. c. melanotis Mearns, 1890 — S South Dakota, SE Wyoming, Nebraska, E Colorado, Kansas, W Missouri, NE New Mexico, Oklahoma, W Arkansas, and N Texas (C USA). An isolated population exists in E Oklahoma. L. c. merriami Mearns, 1896 — S Texas (S USA), and NE Coahuila, N Tamaulipas, and N Nuevo Leon (NE Mexico). L. c. richardsonii Bachman, 1839 — C California (SW USA). L. c. sheldoni Burt, 1933 — Isla del Carmen, Baja California Sur (NW Mexico). L. c. texianus Waterhouse, 1848 — SE Utah, SW Colorado, NE Arizona, New Mexico except the NE, and W Texas (C USA), Chihuahua except the NW, W, & SW extremes, W Coahuila, E Durango, and NW Zacatecas (NC Mexico). L. c. wallawalla Merriam, 1904 — S Washington, C & W Oregon, NE California, and NW Nevada (NW USA). L. ¢. xanti Thomas, 1898 — Baja California Sur except the NE (NW Mexico). in Leporidae

Subspecies and Distribution. L. c. californicus Gray, 1837 — SW Oregon, and NW California (W USA). L. c. altamirae Nelson, 1904 — SE Tamaulipas (NE Mexico). L. c. asellus Miller, 1899 — SE Coahuila, NE, S Nuevo Leon, E & SE Zacatecas, San Luis Potosi, Aguascalientes, NE tip ofJalisco, N Guanajuato, and NW Querétaro (NC Mexico). L. c. bennettiz Gray, 1843 — SW California (SW USA), and NW Baja California (NW Mexico). L. c. curts Hall, 1951 — Is along the coast of Tamaulipas (NE Mexico). L. c. deserticola Mearns, 1896 — SE Oregon, S Idaho, SW Montana, NE & E California, Nevada, Utah except SE, and NW, W & SW Arizona (W & SW USA), and NW Sonora and NE Baja California (NW Mexico). The population in SW Montanais isolated. L. c. eremicus J. A. Allen, 1894 — S Arizona (SW USA), N Sonora except extreme NW, NW Chihuahua (N Mexico). L. c. festinus Nelson, 1904 — S Querétaro, Hidalgo, and N State of Mexico (C Mexico). L. c. magdalenae Nelson, 1907 — Magdalena I, Baja California Sur (NW Mexico). L. c. martirensis Stowell, 1895 —Baja California except NW & NE and NE Baja California Sur (NW Mexico). L. c. melanotis Mearns, 1890 — S South Dakota, SE Wyoming, Nebraska, E Colorado, Kansas, W Missouri, NE New Mexico, Oklahoma, W Arkansas, and N Texas (C USA). An isolated population exists in E Oklahoma. L. c. merriami Mearns, 1896 — S Texas (S USA), and NE Coahuila, N Tamaulipas, and N Nuevo Leon (NE Mexico). L. c. richardsonii Bachman, 1839 — C California (SW USA). L. c. sheldoni Burt, 1933 — Isla del Carmen, Baja California Sur (NW Mexico). L. c. texianus Waterhouse, 1848 — SE Utah, SW Colorado, NE Arizona, New Mexico except the NE, and W Texas (C USA), Chihuahua except the NW, W, & SW extremes, W Coahuila, E Durango, and NW Zacatecas (NC Mexico). L. c. wallawalla Merriam, 1904 — S Washington, C & W Oregon, NE California, and NW Nevada (NW USA). L. ¢. xanti Thomas, 1898 — Baja California Sur except the NE (NW Mexico).

Subspecies and Distribution. L. c. californicus Gray, 1837 — SW Oregon, and NW California (W USA). L. c. altamirae Nelson, 1904 — SE Tamaulipas (NE Mexico). L. c. asellus Miller, 1899 — SE Coahuila, NE, S Nuevo Leon, E & SE Zacatecas, San Luis Potosi, Aguascalientes, NE tip ofJalisco, N Guanajuato, and NW Querétaro (NC Mexico). L. c. bennettiz Gray, 1843 — SW California (SW USA), and NW Baja California (NW Mexico). L. c. curts Hall, 1951 — Is along the coast of Tamaulipas (NE Mexico). L. c. deserticola Mearns, 1896 — SE Oregon, S Idaho, SW Montana, NE & E California, Nevada, Utah except SE, and NW, W & SW Arizona (W & SW USA), and NW Sonora and NE Baja California (NW Mexico). The population in SW Montanais isolated. L. c. eremicus J. A. Allen, 1894 — S Arizona (SW USA), N Sonora except extreme NW, NW Chihuahua (N Mexico). L. c. festinus Nelson, 1904 — S Querétaro, Hidalgo, and N State of Mexico (C Mexico). L. c. magdalenae Nelson, 1907 — Magdalena I, Baja California Sur (NW Mexico). L. c. martirensis Stowell, 1895 —Baja California except NW & NE and NE Baja California Sur (NW Mexico). L. c. melanotis Mearns, 1890 — S South Dakota, SE Wyoming, Nebraska, E Colorado, Kansas, W Missouri, NE New Mexico, Oklahoma, W Arkansas, and N Texas (C USA). An isolated population exists in E Oklahoma. L. c. merriami Mearns, 1896 — S Texas (S USA), and NE Coahuila, N Tamaulipas, and N Nuevo Leon (NE Mexico). L. c. richardsonii Bachman, 1839 — C California (SW USA). L. c. sheldoni Burt, 1933 — Isla del Carmen, Baja California Sur (NW Mexico). L. c. texianus Waterhouse, 1848 — SE Utah, SW Colorado, NE Arizona, New Mexico except the NE, and W Texas (C USA), Chihuahua except the NW, W, & SW extremes, W Coahuila, E Durango, and NW Zacatecas (NC Mexico). L. c. wallawalla Merriam, 1904 — S Washington, C & W Oregon, NE California, and NW Nevada (NW USA). L. ¢. xanti Thomas, 1898 — Baja California Sur except the NE (NW Mexico). The Black-tailed Jackrabbit has been introduced into Massachusetts, NewJersey, Maryland, Virginia, and S Florida. in Leporidae

Subspecies and Distribution. S.n.nuttalliiBachman,1837—NWpartoftherangeinextremeSBritishColumbia(SWCanada),Washington,WCIdaho,Oregon,NECalifornia,andNWNevada(NWUSA). S.n.grangeriJ.A.Allen,1895—Cpartoftherange,fromSAlbertaandSSaskatchewan(SCanada)SWtoCECaliforniaandSEtoNArizonaandNWColorado(CUSA). S. n. pinetisJ. A. Allen, 1894 — SE part of the range in SC Wyoming, SE Utah, C & SW Colorado, NW New Mexico, and NE & C Arizona (SC USA). in Leporidae

Subspecies and Distribution. S.n.nuttalliiBachman,1837—NWpartoftherangeinextremeSBritishColumbia(SWCanada),Washington,WCIdaho,Oregon,NECalifornia,andNWNevada(NWUSA). S.n.grangeriJ.A.Allen,1895—Cpartoftherange,fromSAlbertaandSSaskatchewan(SCanada)SWtoCECaliforniaandSEtoNArizonaandNWColorado(CUSA). S. n. pinetisJ. A. Allen, 1894 — SE part of the range in SC Wyoming, SE Utah, C & SW Colorado, NW New Mexico, and NE & C Arizona (SC USA).

Subspecies and Distribution. S.a.audubonuiBaird,1858—NCalifornia(WUSA). S.a.arizonae].A.Allen,1877—SWUtah,SNevada,SECalifornia,W&SArizona(SWUSA),andmostofSonora(NWMexico). S.a.baileyiMerriam,1897—C&SEMontana,SWNorthDakota,Wyoming,WSouthDakota,WNebraska,NEUtah,N,NW&EColorado,andNWKansas(NCUSA). S.a.cedrophilusNelson,1907—EArizonaandWC&CNewMexico(CUSA). S.a.confinisJ.A.Allen,1898—BajaCaliforniaexcepttheNandBajaCaliforniaSur(NWMexico). S.a.goldmaniNelson,1904—SSonora,extremeSWChihuahua,extremeWDurango,andSinaloa(WMexico). S.a.minorMearns,1896—SEArizona,SNewMexico,andSWTexas(SUSA),ESonora,ChihuahuaexceptSW,NEDurango,WCoahuila,andNZacatecas,andWCtipofNuevoLeon(NCMexico). S.a.neomexicanusNelson,1907—SWKansas,WOklahoma,N&WTexas,SEtipofColoradoandENewMexico(SCUSA). S.a.parvulus].A.Allen,1904—SCTexas(SUSA),N&WTamaulipas,NuevoLeon,ECoahuila,S.a.LuisPotosi,Zacatecas,SEDurango,Aguascalientes,WJalisco,NGuanajuato,Querétaro,Hidalgo,CPuebla,Tlaxcala,andWVeracruz(CMexico). S.a.sanctidiegiMiller,1899—SWCalifornia(SWUSA),NWtipofBajaCalifornia(NWMexico). S.a.vallicolaNelson,1907—CWCalifornia(WUSA). S. a. warreni Nelson, 1907 — SE Utah, W & S Colorado, NE Arizona, and NW New Mexico (USA). in Leporidae

Subspecies and Distribution. S.a.audubonuiBaird,1858—NCalifornia(WUSA). S.a.arizonae].A.Allen,1877—SWUtah,SNevada,SECalifornia,W&SArizona(SWUSA),andmostofSonora(NWMexico). S.a.baileyiMerriam,1897—C&SEMontana,SWNorthDakota,Wyoming,WSouthDakota,WNebraska,NEUtah,N,NW&EColorado,andNWKansas(NCUSA). S.a.cedrophilusNelson,1907—EArizonaandWC&CNewMexico(CUSA). S.a.confinisJ.A.Allen,1898—BajaCaliforniaexcepttheNandBajaCaliforniaSur(NWMexico). S.a.goldmaniNelson,1904—SSonora,extremeSWChihuahua,extremeWDurango,andSinaloa(WMexico). S.a.minorMearns,1896—SEArizona,SNewMexico,andSWTexas(SUSA),ESonora,ChihuahuaexceptSW,NEDurango,WCoahuila,andNZacatecas,andWCtipofNuevoLeon(NCMexico). S.a.neomexicanusNelson,1907—SWKansas,WOklahoma,N&WTexas,SEtipofColoradoandENewMexico(SCUSA). S.a.parvulus].A.Allen,1904—SCTexas(SUSA),N&WTamaulipas,NuevoLeon,ECoahuila,S.a.LuisPotosi,Zacatecas,SEDurango,Aguascalientes,WJalisco,NGuanajuato,Querétaro,Hidalgo,CPuebla,Tlaxcala,andWVeracruz(CMexico). S.a.sanctidiegiMiller,1899—SWCalifornia(SWUSA),NWtipofBajaCalifornia(NWMexico). S.a.vallicolaNelson,1907—CWCalifornia(WUSA). S. a. warreni Nelson, 1907 — SE Utah, W & S Colorado, NE Arizona, and NW New Mexico (USA).

On following pages: 184. Magdalena Woodrat (Xenomys nelsoni); 185. Bushy-tailed Woodrat (Neotoma cinerea); 186. Sonoran Woodrat (Neotoma phenax); 187. Goldman's Woodrat (Neotoma goldmani); 188. Allegheny Woodrat (Neotoma magisten; 189. Eastern Woodrat (Neotoma floridanus); 190. White-throated Woodrat (Neotoma albigula); 191. Black-tailed Woodrat (Neotoma melanura); 192. White-toothed Woodrat (Neotoma leucodon): 193. Southern Plains Woodrat (Neotoma micropus); 194. Nelson's Woodrat (Neotoma nelsoni); 195. Bolanos Woodrat (Neotoma palatina); 196. Tamaulipan Woodrat (Neotoma angustapalata); 197. Mexican Woodrat (Neotoma mexicana); 198. Painted Woodrat (Neotoma picta); 199. Guatemala Woodrat (Neotoma ferruginea); 200. Nicaraguan Woodrat (Neotoma chrysomelas); 201. Stephens's Woodrat (Neotoma stephensi); 202. Dusky-footed Woodrat (Neotoma fuscipes); 203. Big-eared Woodrat (Neotoma macrotis); 204. Bryant's Woodrat (Neotoma bryant); 205. Angel de la Guarda Woodrat (Neotoma insularis); 206. Desert Woodrat (Neotoma lepida); 207. Arizona Woodrat (Neotoma devia). in Cricetidae

On following pages: 184. Magdalena Woodrat (Xenomys nelsoni); 185. Bushy-tailed Woodrat (Neotoma cinerea); 186. Sonoran Woodrat (Neotoma phenax); 187. Goldman's Woodrat (Neotoma goldmani); 188. Allegheny Woodrat (Neotoma magisten; 189. Eastern Woodrat (Neotoma floridanus); 190. White-throated Woodrat (Neotoma albigula); 191. Black-tailed Woodrat (Neotoma melanura); 192. White-toothed Woodrat (Neotoma leucodon): 193. Southern Plains Woodrat (Neotoma micropus); 194. Nelson's Woodrat (Neotoma nelsoni); 195. Bolanos Woodrat (Neotoma palatina); 196. Tamaulipan Woodrat (Neotoma angustapalata); 197. Mexican Woodrat (Neotoma mexicana); 198. Painted Woodrat (Neotoma picta); 199. Guatemala Woodrat (Neotoma ferruginea); 200. Nicaraguan Woodrat (Neotoma chrysomelas); 201. Stephens's Woodrat (Neotoma stephensi); 202. Dusky-footed Woodrat (Neotoma fuscipes); 203. Big-eared Woodrat (Neotoma macrotis); 204. Bryant's Woodrat (Neotoma bryant); 205. Angel de la Guarda Woodrat (Neotoma insularis); 206. Desert Woodrat (Neotoma lepida); 207. Arizona Woodrat (Neotoma devia).

On following pages: 325. Tawny-bellied Cotton Rat (Sigmodon fulviventer); 326. Yellow-nosed Cotton Rat (Sigmodon ochrognathus); 327. Hispid Cotton Rat (Sigmodon hispidus); 328. West Mexican Cotton Rat (Sigmodon mascotensis); 329. Arizona Cotton Rat (Sigmodon arizonae); 330. Toltec Cotton Rat (Sigmodon toltecus); 331. Allen's Cotton Rat (Sigmodon alleni); 332. Burmeister's Cotton Rat (Sigmodon hirsutus); 333. Montane Cotton Rat (Sigmodon zanjonensis); 334. Miahuatlan Cotton Rat (Sigmodon planifrons); 335. Musso's Fish-eating Rat (Neusticomys mussol); 336. Montane Fish-eating Rat (Neusticomys monticolus); 337 Voss's Fish-eating Rat (Neusticomys vossi); 338. Venezuelan Fish-eating Rat (Neusticomys venezuelae); 339. Guianan Fish-eating Rat (Neusticomys oyapocki); 340. Ferreira's Fish-eating Rat (Neusticomys ferreirai); 341. Peruvian Fish-eating Rat (Neusticomys peruviensis); 342. Northern Andean Water Mouse (Chibchanomys trichotis); 343. Orces's Andean Water Mouse (Chibchanomys orcesi); 344. Earless Water Mouse (Anotomys leander); 345. Pittier's Crab-eating Rat (/chthyomys pittieri); 346. Common Crab-eating Rat (/chthyomys hydrobates); 347 Tweedy's Crab-eating Rat (/chthyomys tweed); 348. Stolzmann''s Crab-eating Rat (/chthyomys stolzmanni); 349. Goldman's Water Mouse (Rheomys raptor); 350. Thomas's Water Mouse (Rheomys thomasi); 351. Underwood's Water Mouse (Rheomys underwood); 352. Mexican Water Mouse (Rheomys mexicanus). in Cricetidae

On following pages: 325. Tawny-bellied Cotton Rat (Sigmodon fulviventer); 326. Yellow-nosed Cotton Rat (Sigmodon ochrognathus); 327. Hispid Cotton Rat (Sigmodon hispidus); 328. West Mexican Cotton Rat (Sigmodon mascotensis); 329. Arizona Cotton Rat (Sigmodon arizonae); 330. Toltec Cotton Rat (Sigmodon toltecus); 331. Allen's Cotton Rat (Sigmodon alleni); 332. Burmeister's Cotton Rat (Sigmodon hirsutus); 333. Montane Cotton Rat (Sigmodon zanjonensis); 334. Miahuatlan Cotton Rat (Sigmodon planifrons); 335. Musso's Fish-eating Rat (Neusticomys mussol); 336. Montane Fish-eating Rat (Neusticomys monticolus); 337 Voss's Fish-eating Rat (Neusticomys vossi); 338. Venezuelan Fish-eating Rat (Neusticomys venezuelae); 339. Guianan Fish-eating Rat (Neusticomys oyapocki); 340. Ferreira's Fish-eating Rat (Neusticomys ferreirai); 341. Peruvian Fish-eating Rat (Neusticomys peruviensis); 342. Northern Andean Water Mouse (Chibchanomys trichotis); 343. Orces's Andean Water Mouse (Chibchanomys orcesi); 344. Earless Water Mouse (Anotomys leander); 345. Pittier's Crab-eating Rat (/chthyomys pittieri); 346. Common Crab-eating Rat (/chthyomys hydrobates); 347 Tweedy's Crab-eating Rat (/chthyomys tweed); 348. Stolzmann''s Crab-eating Rat (/chthyomys stolzmanni); 349. Goldman's Water Mouse (Rheomys raptor); 350. Thomas's Water Mouse (Rheomys thomasi); 351. Underwood's Water Mouse (Rheomys underwood); 352. Mexican Water Mouse (Rheomys mexicanus).

Subspecies and Distribution. S.f.fulviventer].A.Allen,1889—CDurangoSthroughtheCMexicanPlateautoNEJaliscoandTlaxcala,Mexico. S.f.dalquestiStangl,1992—anisolatedtaxonknownonlyfromitstypelocalityinSWTexas. S.f.goldmaniBailey,1913—knownonlyfromthetypelocalityinSWNewMexico,butpresumedtobeextinct. S.f.melanotisBailey,1902—EJaliscoandWMichoacan,Mexico. S. f. minimus Mearns, 1894 — SE Arizona and SW New Mexico, USA, S through E Sonora and Chihuahua to N Durango, Mexico. in Cricetidae

Subspecies and Distribution. S.f.fulviventer].A.Allen,1889—CDurangoSthroughtheCMexicanPlateautoNEJaliscoandTlaxcala,Mexico. S.f.dalquestiStangl,1992—anisolatedtaxonknownonlyfromitstypelocalityinSWTexas. S.f.goldmaniBailey,1913—knownonlyfromthetypelocalityinSWNewMexico,butpresumedtobeextinct. S.f.melanotisBailey,1902—EJaliscoandWMichoacan,Mexico. S. f. minimus Mearns, 1894 — SE Arizona and SW New Mexico, USA, S through E Sonora and Chihuahua to N Durango, Mexico.

Distribution. SE Arizona, extreme SW New Mexico, and Trans-Pecos of W Texas, USA, S through NE Sonora, Chihuahua, and W Coahuila to C Durango, Mexico. in Cricetidae

Distribution. SE Arizona, extreme SW New Mexico, and Trans-Pecos of W Texas, USA, S through NE Sonora, Chihuahua, and W Coahuila to C Durango, Mexico.

Distribution. USA and Mexico, from S Nebraska, SE Colorado, and SE Arizona E to Virginia, the Carolinas, Georgia, and Florida, and S through Texas to Nuevo Leon and Tamaulipas, with an isolated population in the lower Colorado River of SW Arizona, SE California, and extreme NW Sonora. in Cricetidae

Distribution. USA and Mexico, from S Nebraska, SE Colorado, and SE Arizona E to Virginia, the Carolinas, Georgia, and Florida, and S through Texas to Nuevo Leon and Tamaulipas, with an isolated population in the lower Colorado River of SW Arizona, SE California, and extreme NW Sonora.

Subspecies and Distribution. P. n. nasutusJ. A. Allen, 1891 — from SE Utah and NC Colorado S through E Arizona, New Mexico, and W Texas, USA, to C Coahuila, Mexico. P.n.griseusBenson,1932—restrictedtolavafieldssurroundingthetypelocalityinCNewMexico,USA. P.n. penicillatus Mearns, 1896 — restricted to a narrow band along the USA-Mexico border from El Paso, Texas, to Sierra del Carmen, Coahuila. in Cricetidae

Subspecies and Distribution. P. n. nasutusJ. A. Allen, 1891 — from SE Utah and NC Colorado S through E Arizona, New Mexico, and W Texas, USA, to C Coahuila, Mexico. P.n.griseusBenson,1932—restrictedtolavafieldssurroundingthetypelocalityinCNewMexico,USA. P.n. penicillatus Mearns, 1896 — restricted to a narrow band along the USA-Mexico border from El Paso, Texas, to Sierra del Carmen, Coahuila.

Distribution. SE Arizona, USA, S throughout the Sierra Madre Occidental and Oriental, and the Mexican Plateau to N Michoacan, Puebla, and W Veracruz, Mexico. in Cricetidae

Distribution. SE Arizona, USA, S throughout the Sierra Madre Occidental and Oriental, and the Mexican Plateau to N Michoacan, Puebla, and W Veracruz, Mexico.

Subspecies and Distribution. O. a. arenicola Mearns, 1896 — SE Arizona, SC New Mexico, and W Texas, USA (type locality — 6-0 mi above El Paso, Texas, USA). O. a. canus Merriam, 1904 — portions of Aguascalientes, Durango, San Luis Potosi, and Zacatecus, Mexico (type locality — San Juan Capistrano, Zacatecus, Mexico). O. a. surrufus Hollister, 1914 — portions of San Luis Potosi, and Tamaulipas, Mexico (type locality — Miquihuana, Tamaulipas, Mexico). in Cricetidae

Subspecies and Distribution. O. a. arenicola Mearns, 1896 — SE Arizona, SC New Mexico, and W Texas, USA (type locality — 6-0 mi above El Paso, Texas, USA). O. a. canus Merriam, 1904 — portions of Aguascalientes, Durango, San Luis Potosi, and Zacatecus, Mexico (type locality — San Juan Capistrano, Zacatecus, Mexico). O. a. surrufus Hollister, 1914 — portions of San Luis Potosi, and Tamaulipas, Mexico (type locality — Miquihuana, Tamaulipas, Mexico).

Subspecies and Distribution. P.c.erinitusMerriam,1891—fromOregonandSIdahoStoCNevadaandasmallportionofCalifornia,USA. P.c.auripectusJ.A.Allen,1893—fromEUtahandWColoradoStoNEArizonaandNWNewMexico,USA. P.c.delgadilliBenson,1940—knownonlyfromthetypelocalityandsurroundingareasinNWSonora,Mexico. P.c.disparilisGoldman,1932—extremeSWArizona,USA,andasmallportionofNWSonora,Mexico. P.c.douttiGoin,1944—fromextremeSWWyomingSWtoSCUtah,USA. P.c.pallidissimusHuey,1931—knownonlyfromthetypelocalityonSanLuisGonzagaI,BajaCalifornia,Mexico. P.c.pergracilisGoldman,1939—NE&CENevadaandNW&CWUtah,USA. P. c. stephensi Mearns, 1897 — S Nevada, SW Utah, E & SE California, and W Arizona, USA, and NE Baja California, Mexico. in Cricetidae

Subspecies and Distribution. P.c.erinitusMerriam,1891—fromOregonandSIdahoStoCNevadaandasmallportionofCalifornia,USA. P.c.auripectusJ.A.Allen,1893—fromEUtahandWColoradoStoNEArizonaandNWNewMexico,USA. P.c.delgadilliBenson,1940—knownonlyfromthetypelocalityandsurroundingareasinNWSonora,Mexico. P.c.disparilisGoldman,1932—extremeSWArizona,USA,andasmallportionofNWSonora,Mexico. P.c.douttiGoin,1944—fromextremeSWWyomingSWtoSCUtah,USA. P.c.pallidissimusHuey,1931—knownonlyfromthetypelocalityonSanLuisGonzagaI,BajaCalifornia,Mexico. P.c.pergracilisGoldman,1939—NE&CENevadaandNW&CWUtah,USA. P. c. stephensi Mearns, 1897 — S Nevada, SW Utah, E & SE California, and W Arizona, USA, and NE Baja California, Mexico.

Subspecies and Distribution. P.m.maniculatusWagner,1845—SManitoba,Ontario,Quebec,andLabrador,Canada. P.m.abietorumBangs,1896—NewBrunswickandNovaScotia,Canada,andMaine, USA. P.m.alpinusCowan,1937—restrictedtoasmallregioninSEBritishColumbia,Canada . P.m.anacapaevonBloeker,1942—knownonlyfromWestAnacapaIandsurroundingIs,California,USA. P.m.angustusHall,1932—knownonlyfromSWpartofVancouverI,BritishColumbia, Canada. P.m.anticostiensisMoulthrop,1937—knownonlyfromthetypelocalityonEAnticostiI,Quebec,Canada. P.m.argentatusCopeland&Church,1906—knownonlyfromthetypelocalityonGrandMananI,NewBrunswick,Canada. P.m.artemisiaeRhoads,1894—fromSCBritishColumbia,Canada,SWtoWWyoming, USA. P.m.assimilisNelson&Goldman,1931—knownonlyfromthetypelocalityonCoronadoIs,BajaCalifornia,Mexico. P.m.austerusBaird,1855—WCWashington,USA. P.m.bairdiiHoy&Kennicott,1857—mostoftheECportionoftheUSA. P.m.balaclavaeMcCabe&Cowan,1945—knownonlyfromthetypelocalityonBalaklavaI,BritishColumbia,Canada. P.m.blandusOsgood,1904—SCUSAStoSanLuisPotosi,Guanajauto,andJalisco, Mexico. P.m.borealisMearns,1911—NWCanada. P.m.catalinaeElliot,1903—knownonlyfromSantaCatalinaI,California,USA. P.m.cmenitius|.A.Allen,1898—knownonlyfromthetypelocalityonSanRoqueI, BajaCalifornia,Mexico. P.m.clementisMearns,1896—knownonlyfromSanClementeI,California,USA. P.m.coolidge:Thomas,1898—SBajaCaliforniaandBajaCaliforniaSur,Mexico. P.m.dorsalisNelson&Goldman,1931—knownonlyfromthetypelocalityonNatividadI,BajaCalifornia,Mexico. P.m.dubiusJ.A.Allen,1898—knownonlyfromthetypelocalityonTodosSantosI, BajaCalifornia,Mexico. P.m.elususNelson&Goldman,1931—knownonlyfromSantaBarabaraandSutilIs, California,USA. P.m.eremusOsgood,1909—knownonlyfromGrindstoneI,Quebec,Canada. P.m.exiguusJ.A.Allen,1898—knownonlyfromSanMartinI,BajaCalifornia,Mexico. P.m.exterusNelson&Goldman,1931—knownonlyfromthetypelocalityonSanNicolasI,California,USA. P.m.fulvusOsgood,1904—fromCPueblaandVeracruzStoCOaxaca,Mexico. P.m.gambeliiBaird,1858—N&WCalifornia,USA,SintoNBajaCalifornia,Mexico. P.m.georgiensisHall,1938—knownonlyfromthetypelocalityonTexadaIandsurroundingIs,BritishColumbia,Canada. P.m.geronimensisJ.A.Allen,1898—knownonlyfromthetypelocalityonSanGeronimoI,BajaCalifornia,Mexico. P.m.gracilisLeConte,1855—OntarioandSQuebec,Canada,S&EtoWisconsin, Michigan,andNEUSA.FP.m.hollister:Osgood,1909—knownonlyfromSanJuanIandsurroundingIs,Washington,USA. P.m.huey:Nelson&Goldman,1932—knownonlyfromthetypelocalityonasmallunnamedIinGonzagaBay,BajaCalifornia,Mexico. P. m. inclarus Goldman, 1939 — known only from Fremont I in Great Salt Lake, Utah, USA. P.m. labecula Elliot, 1903 — from Durango S to Michoacan and Morelos, Mexico. P. m. luteus Osgood, 1905 — from South Dakota S to W Texas, USA. P. m. magdalenae Osgood, 1909 — Magdalena I and surrounding mainland areas, Baja California, Mexico. P.m. margaritae Osgood, 1909 — known only from Margarita I, Baja California, Mexico. Pm. nebrascensis Coues, 1877 — from S Alberta and Saskatchewan, Canada, S to NW Texas, USA. Pm. nubiterrae Rhoads, 1896 — from W New York S to North Carolina, USA. Pm. ozarkiarum Black, 1935 — from NE Oklahoma and SW Missouri S to W Arkansas and NC edge of Texas, USA. P. m. pallescensJ. A. Allen, 1896 — NC to SC Texas, USA. Pm. plumbeus C. F. Jackson, 1939 — E Quebec, Canada. Pm. rubidus Osgood, 1901 — from SW Washington S along the Pacific Coast to C California, USA. P. m. rufinus Merriam, 1890 — from N California S to SC Arizona and New Mexico, USA. P. m. sanctaerosae von Bloeker, 1940 — known only from Santa Rosa I, California, USA. P.m. santacruzae Nelson & Goldman, 1931 — known only from Santa Cruz I, California, USA. Pm. saturatus Bangs, 1897 — known only from Saturna I, British Columbia, Canada. Pm. saxamans McCabe & Cowan, 1945 — known only from Duncan I and surrounding Is, British Columbia, Canada. Pm. serratus Davis, 1939 — restricted to a small region in C Idaho, USA. Pm. sonoriensis Le Conte, 1853 — from SE Oregon and S Idaho, USA, S to N edge of Sonora, Mexico. Pm. streatori Nelson & Goldman, 1931 — known only from San Miguel I and surrounding Is, California, USA. in Cricetidae

Subspecies and Distribution. P.m.maniculatusWagner,1845—SManitoba,Ontario,Quebec,andLabrador,Canada. P.m.abietorumBangs,1896—NewBrunswickandNovaScotia,Canada,andMaine, USA. P.m.alpinusCowan,1937—restrictedtoasmallregioninSEBritishColumbia,Canada . P.m.anacapaevonBloeker,1942—knownonlyfromWestAnacapaIandsurroundingIs,California,USA. P.m.angustusHall,1932—knownonlyfromSWpartofVancouverI,BritishColumbia, Canada. P.m.anticostiensisMoulthrop,1937—knownonlyfromthetypelocalityonEAnticostiI,Quebec,Canada. P.m.argentatusCopeland&Church,1906—knownonlyfromthetypelocalityonGrandMananI,NewBrunswick,Canada. P.m.artemisiaeRhoads,1894—fromSCBritishColumbia,Canada,SWtoWWyoming, USA. P.m.assimilisNelson&Goldman,1931—knownonlyfromthetypelocalityonCoronadoIs,BajaCalifornia,Mexico. P.m.austerusBaird,1855—WCWashington,USA. P.m.bairdiiHoy&Kennicott,1857—mostoftheECportionoftheUSA. P.m.balaclavaeMcCabe&Cowan,1945—knownonlyfromthetypelocalityonBalaklavaI,BritishColumbia,Canada. P.m.blandusOsgood,1904—SCUSAStoSanLuisPotosi,Guanajauto,andJalisco, Mexico. P.m.borealisMearns,1911—NWCanada. P.m.catalinaeElliot,1903—knownonlyfromSantaCatalinaI,California,USA. P.m.cmenitius|.A.Allen,1898—knownonlyfromthetypelocalityonSanRoqueI, BajaCalifornia,Mexico. P.m.clementisMearns,1896—knownonlyfromSanClementeI,California,USA. P.m.coolidge:Thomas,1898—SBajaCaliforniaandBajaCaliforniaSur,Mexico. P.m.dorsalisNelson&Goldman,1931—knownonlyfromthetypelocalityonNatividadI,BajaCalifornia,Mexico. P.m.dubiusJ.A.Allen,1898—knownonlyfromthetypelocalityonTodosSantosI, BajaCalifornia,Mexico. P.m.elususNelson&Goldman,1931—knownonlyfromSantaBarabaraandSutilIs, California,USA. P.m.eremusOsgood,1909—knownonlyfromGrindstoneI,Quebec,Canada. P.m.exiguusJ.A.Allen,1898—knownonlyfromSanMartinI,BajaCalifornia,Mexico. P.m.exterusNelson&Goldman,1931—knownonlyfromthetypelocalityonSanNicolasI,California,USA. P.m.fulvusOsgood,1904—fromCPueblaandVeracruzStoCOaxaca,Mexico. P.m.gambeliiBaird,1858—N&WCalifornia,USA,SintoNBajaCalifornia,Mexico. P.m.georgiensisHall,1938—knownonlyfromthetypelocalityonTexadaIandsurroundingIs,BritishColumbia,Canada. P.m.geronimensisJ.A.Allen,1898—knownonlyfromthetypelocalityonSanGeronimoI,BajaCalifornia,Mexico. P.m.gracilisLeConte,1855—OntarioandSQuebec,Canada,S&EtoWisconsin, Michigan,andNEUSA.FP.m.hollister:Osgood,1909—knownonlyfromSanJuanIandsurroundingIs,Washington,USA. P.m.huey:Nelson&Goldman,1932—knownonlyfromthetypelocalityonasmallunnamedIinGonzagaBay,BajaCalifornia,Mexico. P. m. inclarus Goldman, 1939 — known only from Fremont I in Great Salt Lake, Utah, USA. P.m. labecula Elliot, 1903 — from Durango S to Michoacan and Morelos, Mexico. P. m. luteus Osgood, 1905 — from South Dakota S to W Texas, USA. P. m. magdalenae Osgood, 1909 — Magdalena I and surrounding mainland areas, Baja California, Mexico. P.m. margaritae Osgood, 1909 — known only from Margarita I, Baja California, Mexico. Pm. nebrascensis Coues, 1877 — from S Alberta and Saskatchewan, Canada, S to NW Texas, USA. Pm. nubiterrae Rhoads, 1896 — from W New York S to North Carolina, USA. Pm. ozarkiarum Black, 1935 — from NE Oklahoma and SW Missouri S to W Arkansas and NC edge of Texas, USA. P. m. pallescensJ. A. Allen, 1896 — NC to SC Texas, USA. Pm. plumbeus C. F. Jackson, 1939 — E Quebec, Canada. Pm. rubidus Osgood, 1901 — from SW Washington S along the Pacific Coast to C California, USA. P. m. rufinus Merriam, 1890 — from N California S to SC Arizona and New Mexico, USA. P. m. sanctaerosae von Bloeker, 1940 — known only from Santa Rosa I, California, USA. P.m. santacruzae Nelson & Goldman, 1931 — known only from Santa Cruz I, California, USA. Pm. saturatus Bangs, 1897 — known only from Saturna I, British Columbia, Canada. Pm. saxamans McCabe & Cowan, 1945 — known only from Duncan I and surrounding Is, British Columbia, Canada. Pm. serratus Davis, 1939 — restricted to a small region in C Idaho, USA. Pm. sonoriensis Le Conte, 1853 — from SE Oregon and S Idaho, USA, S to N edge of Sonora, Mexico. Pm. streatori Nelson & Goldman, 1931 — known only from San Miguel I and surrounding Is, California, USA.

Subspecies and Distribution. N.i.lepidaThomas,1893—fromSEOregonandSWIdahoSthroughNevadaandWUtahtoSECalifornia(WUSA). N.ImarshalliGoldman,1939—knownonlyfromCarringtonandStansburyIsintheGreatSaltLake,NWUtah(WCUSA). N. i. monstrabilis Goldman, 1932 — E & S Utah, NW Colorado, and NW Arizona (W USA). in Cricetidae

Subspecies and Distribution. N.i.lepidaThomas,1893—fromSEOregonandSWIdahoSthroughNevadaandWUtahtoSECalifornia(WUSA). N.ImarshalliGoldman,1939—knownonlyfromCarringtonandStansburyIsintheGreatSaltLake,NWUtah(WCUSA). N. i. monstrabilis Goldman, 1932 — E & S Utah, NW Colorado, and NW Arizona (W USA).

Subspecies and Distribution. N.s.stephensiGoldman,1905—CArizonaandCWNewMexico(SWUSA). N. s. relicta Goldman, 1932 — extreme S Utah, NE Arizona, and NW New Mexico (SW USA). in Cricetidae

Subspecies and Distribution. N.s.stephensiGoldman,1905—CArizonaandCWNewMexico(SWUSA). N. s. relicta Goldman, 1932 — extreme S Utah, NE Arizona, and NW New Mexico (SW USA).

Subspecies and Distribution. N.a.albigulaHartley,1894—fromextremeSENevada,Arizona,andmostofNewMexico(SWUSA)SintoNESonoraandCChihuahuastates(NMexico). N.a.brevicaudaDurrant,1934—restrictedtosmallisolatedareaalongtheUtah—Coloradoborder(WUSA). N.a.laplataensisF.W.Miller,1933—SEUtah,SWColorado,NArizona,andNWNewMexico(SWUSA). N.a.mearnsiGoldman,1915—smallregioninextremeSWArizona(SWUSA). N.a.seriTownsend,1912—restrictedtoTiburonIintheSeaofCortez(NWMexico). N.a.sheldoniGoldman,1915—smallregioninextremeNESonoraState(NWMexico). N. a. venusta True, 1894 — SE Californa, extreme S Nevada, and W Arizona (SW USA) and extreme NE Baja California and NW Sonora states (NW Mexico). in Cricetidae

Subspecies and Distribution. N.a.albigulaHartley,1894—fromextremeSENevada,Arizona,andmostofNewMexico(SWUSA)SintoNESonoraandCChihuahuastates(NMexico). N.a.brevicaudaDurrant,1934—restrictedtosmallisolatedareaalongtheUtah—Coloradoborder(WUSA). N.a.laplataensisF.W.Miller,1933—SEUtah,SWColorado,NArizona,andNWNewMexico(SWUSA). N.a.mearnsiGoldman,1915—smallregioninextremeSWArizona(SWUSA). N.a.seriTownsend,1912—restrictedtoTiburonIintheSeaofCortez(NWMexico). N.a.sheldoniGoldman,1915—smallregioninextremeNESonoraState(NWMexico). N. a. venusta True, 1894 — SE Californa, extreme S Nevada, and W Arizona (SW USA) and extreme NE Baja California and NW Sonora states (NW Mexico).

Subspecies and Distribution. M.m.mogollonensisMearns,1890—EArizona,extremeSWColorado,andWNewMexico,USA. M.m.guadalupensisBailey,1902—fromECNewMexicoStoGuadalupeMtsofTexas,USA. M.m.hualpaiensisGoldman,1938—knownonlyfromHualapaiPeak,MohaveCounty,Arizona,USA. M. m. navaho Benson, 1934 — known only from Navajo Mt in S Utah and N Arizona, USA. in Cricetidae

Subspecies and Distribution. M.m.mogollonensisMearns,1890—EArizona,extremeSWColorado,andWNewMexico,USA. M.m.guadalupensisBailey,1902—fromECNewMexicoStoGuadalupeMtsofTexas,USA. M.m.hualpaiensisGoldman,1938—knownonlyfromHualapaiPeak,MohaveCounty,Arizona,USA. M. m. navaho Benson, 1934 — known only from Navajo Mt in S Utah and N Arizona, USA.

On following pages: 75. Fremont's Squirrel (Tamiasciurus fremonti); 76. Eurasian Red Squirrel (Sciurus vulgaris); 77 carolinensis); 80. Eastern Fox Squirrel (Sciurus nigen; 81. Western Gray Squirrel (Sciurus griseus); 82. Abert's Squirrel. Japanese Squirrel (Sciurus lis); 78. Caucasian Squirrel (Sciurus anomalus); 79. Eastern Gray Squirrel (Sciurus (Sciurus aberti); 83. Arizona Gray Squirrel (Sciurus arizonensis). in Sciuridae

On following pages: 75. Fremont's Squirrel (Tamiasciurus fremonti); 76. Eurasian Red Squirrel (Sciurus vulgaris); 77 carolinensis); 80. Eastern Fox Squirrel (Sciurus nigen; 81. Western Gray Squirrel (Sciurus griseus); 82. Abert's Squirrel. Japanese Squirrel (Sciurus lis); 78. Caucasian Squirrel (Sciurus anomalus); 79. Eastern Gray Squirrel (Sciurus (Sciurus aberti); 83. Arizona Gray Squirrel (Sciurus arizonensis).