94 MILLER 



from above. Lateral outline of nasals bowed inward near middle. The 

 nasals are squarely truncate posteriori}^ a little in front of tips of nasal 

 branches of premaxillae. Palate normal, the lateral bridges well de- 

 veloped, and the foramina in front of bridges small. Audital bullae 

 as in E. Jiercynicus. 



Measurements of an adult skull (the type) : Greatest length 36. 8 ; 

 basal length 25; basilar length 23; zygomatic breadth 14.6; mastoid 

 breadth 1 1. 6; interorbital constriction 4 ; nasals 8; incisive foramen 

 5.2; diastema 7.8; palatal length, 11. 8; occipital depth (in median 

 line) 7.4; frontopalatal depth (at middle of molar series) 6.8; man- 

 dible 16; maxillary toothrow (alveoli) 5.8; mandibular toothrow 

 (alveoli) 5.4. 



Teeth. — The teeth of Evotoinys 7iorvegiciis present no tangible 

 characters by which they may be distinguished from those of E. 

 rzitilus and E. hercynicus. They are, of course, larger in propor- 

 tion with the greater size of the skull. 



Aleasurements. — Average of nineteen specimens from the neighbor- 

 hood of the type locality: total length 163; tail vertebras 56.3; hind 

 foot with claws 20. 8. For details see table, page 106. 



Specimens examined. — Twenty-one from the following localities: 

 Norway: Asker, i ; Bergen, 4; Granvin, 14, Opheim, 2. 



Rejuarks. — Evotomys norvegicus needs no close comparison with 

 E. rutilus of the upper boreal zone or E. Jiercy^iicus of the transi- 

 tion zone and upper austral zone. From both of these it is separated 

 by its much larger size ; while from E. rutilus it is immediately 

 distinguishable by its long, thinly haired tail. The only European 

 species with which it is likely to be confused are the geographically 

 remote E. 7iageri of the Alps and E. vasconice at present known 

 from the Fyrenean foothills only. Both of these animals agree with 

 E. norvegicus in size, but the former is readily separable from it by 

 the long tail, pale sides, and broad smooth skull, while the latter 

 differs in its shorter, less hairy tail, duller color, and heavier molar 

 teeth. 



This species is the '• glareolus^ of authors dealing with the fauna of 

 Norway exclusively. A form of E. hercynicus is, however, included 

 under the name glareolus by those who refer to the Scandinavian 

 fauna as a whole. 



EVOTOMYS NAGERI (Schinz). 

 1845. Hypudcpus iiagcri Schinz, Synopsis Mammahim, 11, p. 237. (Mt. St. 



Gotthard, Switzerland.) 

 1862. Myodes bicolor Fatio, Revue et Magasin de Zoologie, 2d ser., xiv, p. 



-57- J^ly- 1862. (Genthal, Berne, Switzerland.) 



