478 



argurus, Microtus (Alticola), 308 

 armenius, Microtus terrestris, 408 

 arvalis, Lemmus, 218, 412 

 arvalis, Microtus, 385 

 arvalis, Mus, 218 



Arvicola, 94, 137, 171, 280, 330, 339, 

 350, 357, 385, 391 



,, measurements : external, 

 448-450, cranial, 474- 

 475: figures, jaw muscles, 

 24; skull, 8-15, 19-20; 

 teeth, 21, 109, 111 



,, relationships of genus, 48 

 Arvicola abbotti, 414 



,, albicauda [Alticola], 314 



,, alliaria [Alticola], 326 



,, ambiguus, [Dicrostonyx], 

 137, 159 



,, americana, 400 



amphibia, 380, 400, 401, 



414 

 amphibius, 357, 385, 38fi, 

 391, 395, 400, 404, 405, 

 408, 412, 413, 414, 415 



,, a. amphibius, 400 



,, a. italica, 404 



,, a. mcridionalis, 407 



,, a. minor, 404 



,, a. nigricans, 400 



,, a. persicus, 408 



,, a. reta, 401 



,, amurensis [Evotomys], 242 



,, antiquus, 417 



,, aquatica, 400 



,, argentora'tensis, 412 

 ater, 401 



,, bactoneiisis, 386 



,, borealis [Svnaptomys], 172 

 blaiifordi [Alticola], 309 



,, destructor, 405 



,, fertilis [Hyperacrius], 332, 

 334 



,, fulvus [Evotomys ; Mi- 

 crotus], 218, 385 



,, gapperi [Evotomys], 207 



>> g*PPeri( Hypudseus) [Evo- 

 tomys], 207 



,, glareolus [Evotomys], 218, 

 219,221,226,228,230 



,, glareolns (Evotomys), 216 



,, gossii (Synaptomys), 171 



,, greenii, 389 



,, groenlandica[Dicrostonyx], 

 153 



,, gulielmi [Dicrostonyx], 100 



,, helvolus(Georychus) [Lem- 

 mus], 209 



,, helvolus (Lemmus), 209 



,, hudsonia [Dicrostonyx], 

 153 



Arvicola hudsonius (Georychus) 



[Dicrostonyx], 157 

 ,, illyricus, 400 

 ,, intermedius (Evotomys) 



[Mimomys], 357, 363, 



308 

 ,, italicus, 405 

 ,, kamtschaticus[Evotomj-s], 



248 

 ,, melanogaster [Eothen- 



omys], 285 

 ,, monticola, 414 

 ,, montosa [Alticola], 315 

 ,, mossbachensis, 394 

 ,, musignani, 405 

 ,, m. fuliginosus, 405 

 ,, musignanoi, 405 

 ,, m. illyricus, 406 

 ,, pertinax, 404 

 ,, pliocenica [Mimomys], 357 



pra>ceptor, 391 

 ,, pratensis [Evotomys], 218, 



219 

 ,, ratticeps [Microtus], 385 

 ,, riparia [Evotomys], 219 

 ,, rii)arius [Evotomys], 219 

 roylei [Alticola], 312, 331, 



330 

 roylei (Alticola), 312 

 ,, rubricatus [Dicrostonj's], 



151 

 ,, rufescens [Evotomys], 218 

 ,, rufocanus [Evotomj's], 248 

 ,, russatus (Hypudipus), 240 



rutila [Evotomys], 239 

 ,, rutilus [Evotomys], 239 

 ,, sapidus, 401, 402 

 ,, s. sapidus, 402 

 ,, s. tenebricus, 402 

 ,, scherman, 410, 412 

 ,, s. exilus, 413 

 ,, s. exitus, 413 

 ,, s. monticola, 414 

 ,, s. scherman, 412 

 ,. stoliczkana, 320 

 ,, stoliczkanus [Alticola], 320 

 ,, stoliczkanus (Alticola), 320 

 ,, stracheyi [Alticola], 321 

 ,, stracheyi (Alticola), 321 

 ,, tenebricus, 402 



terrestris, 401, 403, 412, 



413,414 

 ,, t. amphibius, 400 

 ,, t. castaneus, 413 

 ,. t. illyricus, 400 

 ,, t. italicus, 404 

 ,, t. meridionalis, 407 

 ,, t. musignani, 405 

 ,, t. niger, 413 

 ,, t. persicus, 408 



