310 



Vnlpes. 



1855. fulva, Desm., Mam., 1820, p.203; Richards., 

 Faun.Bor.-Am., 1829, p. 93; De Kay 

 Zool. N.-York, 1842, p. 44, pl. 7, fig. 1 

 Aud. et Bachm., Quadr., II, p. 263, pl. 87 

 III. p. 70. pl. 116; Baird, Mam., 1857, 

 p. 123, pl. 31. 



pensylvanica, Bodd., Elench., 1784, I, 

 p. 96. 



decussatus, Desin., Mam., 1820, p. 203; 

 Harlan, Faun. Am., p. 88 (Canis). 



a. - - Var. argentata, Shaw, Gen. ZooL, 1800; 

 Desm., 1. c, 1820, p. 203 ; Harlan, 1. c, 

 p.88; Mivart, Monog., 1890, pl.XXIV. 



b. - - Y&Y.macrura, Baird, Stansb. Expl. Great 

 Salt-Lake, 1852, p. 309; Mam. N.-Am., 

 1857, p. 130, pl. 33. 



utah, Aud. et Bachm., Quadr., III, p.255, 

 pl. 151. 



1856. velox, Say, Long's Exp., I, 1823, p. 487 

 Wied, Reis. N.-Ain., II, 1841, p. 44, 256 

 Aud. et Bachm., Quadr., II, 1851, p. 13 

 pl.52; Baird, Mam.N.-Am., 1857, p.133 

 Gray, P. Z. S., 1868, p. 519, pl. XXXIV 

 Mivart, Monog., 1890, p. 104, pl. 25. 



cinereo-argentatus, Sabine (nec Erxleb.), 

 Franklin's Journ., p. 658; Richards., Faun. 

 Bor.-Am., p. 98. 



microtus, Reich., Regn. An.. I, p. 10, 

 fig. 72. 73; Univ. ThienC I, 1846, p. 43; 

 Arch. Naturg., IH, 1837, p. 162. 



1857.fvafer. Leidv, Ext. Mam. Fauu.. 1869, 

 p. 368. pl. I. fig. 11; Scott et Osb., Bull. 

 Mus. Comp. ZooL, XX, 1890, p. 69. fig. 3. 



1858. macrotis. Merriam. Proc Biol. Soc Wash- 

 iugt, IV. 1888, p. 135. 



1859. lagopus. L.. Svs. Nat.. 1766. I. p. 59; 

 Schreb., Saug./ III. p. 262. pl. 93. 93*; 

 Shaw, Gen.Zool.. I. 1800, p.326; Sabiue. 

 Suppl. Parrv's l st Vov.. p. 187; F. Cuv., 

 Mam.. 1824. pl. 182; Richards.. App. 

 Parrv's 2 d Vov.. 1825. p. 299: Aud. et 

 Bachm.. Quadr., III. 1820, p. 89. pl. 121: 



America Sept. a 



Canada et Alaska ad 



Mexico Sept. 



Canada merid. 



America Sept.-Occid.: 

 flum. Saskatchewan, 

 Missouri, Columbia. 



j Pliocaen. America 

 sept. 



California, Mexico? 



Region. Arctic. amb. 



Hemisph.. Spitzberg, 



Groenlaud. Siberia 



sept, Nova-ZembL, 



etc, migrans in 



merid. partes 



Americae sept. usque 



