EVOTOMYS 



643 



Italy : Padola, Cadore, 1 (Turin) ; Gasamazzagno, Cadore, 1 (Turin) ; 

 Ceresole d'Alba, Turin, 2 ; Stupinigi, Turin, 1 (Turin) ; Monoalieri, Turin, 

 9 (U.S.N.M. and Turin) ; Ambonasoo, in mountains above Chiavari, 

 Liguria, 2 (Genoa) ; no exact locality, 1. 



Evotomys glaeeolus hallucalis Thomas. 



1882. Arvicola glareolus Cavanna, Bull. Soc. Entomol. Ital., xiv, p. 87 

 (Serra Crispo, Monte Pollino, Basilicata, Italy). 



1906. Evotomys nageri hallucalis Thomas, Ann. and Mag. Nat. Hist 

 7th ser., xvm, p. 221, September, 1906. Type in British Museum 



1910. Evotomys nageri hallucalis Trouessart, Faune Mamm. d'Europe, 

 p. 168. 



Type locality. — Santa Eufemia d'Aspromonte, Calabria, Italy. 



Geographical distribution. — High mountains of southern Italy. 



Diagnosis. — Externally similar to Eootomys glareolus nageri, 

 but underparts less washed with yellowish brown ; skull with 

 longer, narrower brain-case and rather shorter rostrum than in 

 nageri, the incisive foramina shorter and wider than in the 

 related forms ; teeth larger than in any other European species 

 except E. csesarius and E. rufocanus. 



Colour. — Except that the underparts are a light grey washed 

 with whitish cream-buff the colour is similar to that of Evotomys 

 glareolus nageri. Line of demarcation along sides ill defined. 

 Feet dull whitish, somewhat lighter than usual in E. g. nageri. 



Skull. — Although the only known skull is somewhat imperfect 

 its form appears to be notably different from that of Evotomys 

 glareolus nageri and the other members of the group in the 

 decided elongation of the brain-case and a slight shortening of 

 the rostrum. Length of brain-case measured from back of inter- 

 parietal to line joining tips of postorbital processes nearly equal 

 to zygomatic breadth, instead of decidedly less than zygomatic 

 breadth as in the related large forms. Interorbital region 

 rather wide and smooth, a character probably due in part at 

 least to the comparative youth of the specimen (roots of molars 

 less tham 1 mm. long). Rostrum relatively shorter than in 

 E. g. nageri, and incisive foramina much shorter and wider, the 

 greatest breadth of the two together decidedly more than one- 

 third length of foramen instead of about one-fourth as in the 

 related species. 



Teeth. — The incisors are slightly more slender than usual in 

 Evotomys glareolus nageri, though a few specimens from the Alps 

 are essentially the same. Molars heavier than in E. g. nageri, 

 though not peculiar in form, the length of the upper series more 



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