96 MILLER 



Greatest length 26.4 ; basal length 24; basilar length 22 ; zygomatic 

 breadth 14.6; mastoid breadth 12. S; interorbital constriction 4.4; 

 nasals 8; incisive foramen 4.8; diastema 7; palatal length 12; occipi- 

 tal depth (in median line) 7.2; frontopalatal depth (at middle of 

 molar series) 6.8; mandible 15; maxillary toothrow (alveoli) 6; 

 mandibular toothrow (alveoli) 6. 



Teeth. — Except that the incisors are slightly less robust the teeth of 

 Evotomys nageri do not differ from those of E. Jiorvegicics. 



Measurements. — Average of thirty-six specimens from the neigh- 

 borhood of the type locality: total length 156; tail vertebrtE 56.9; 

 hind foot with claws 20.3 ; hind foot without claws 19.2. For details 

 see table, page 105. 



Speci??iens exammed. — Eighty-two, from the following localities: 

 Switzerland: Andermatt, 41 ; Briinig, 30; Meiringen, 11. 



Remarks. — Evotomys 7iageri is a much larger animal than its near 

 geographical ally, E. hercyniciis helvetictis. From the large E. 

 vascojii(t of the Pyrenees it is distinguishable by its relatively inuch 

 longer tail, paler sides, heavier teeth and broader, less angular skull. 

 For comparison with E. norvegicus see description of latter. 



EVOTOMYS VASCONI^ sp. nov. 



• Type. — Adult $ (skin and skull) no. S6994 United States National 

 Museum, collected at Montrejeau, Hautes-Pyrenees, France, July 4, 

 1899, by Robert T. Young. 



Faunal position. — Evotoniys vasconicc is probably a boreal Pyre- 

 nean species whose range extends downward in the cool woodlands 

 to the foothills. 



Geographic distribution. — Although nothing is at present known 

 of its geographic distribution this animal probably occurs throughout 

 the isolated boreal region of Spain and southern France. 



General characters. — Closely related to Evotomys norvegicus., but 

 with shorter, more thinly haired tail, duller colors, broader nasals, 

 and heavier teeth. 



Color. — Summer pdage: Essentially as in E. Jiorvegicus., but 

 dorsal stripe less well defined and less red — more nearly cinnamon- 

 rufous than ferruginous. Sides and flanks slightly darker than in E. 

 7iorvegicus. Winter pelage not known. 



Skull. — The skull of Evotomys vasconicc is of essentially the same 

 form and size as that of E. norvegicus. The zygomata are heavily 

 built and abruptly flaring, therefore quite different from those of E. 

 nageri. Nasals short and broad, the greatest width of both together 



