644 RODENTIA 



nearly approaching length of diastema than in any other European 

 species except the similarly heavy-toothed E. csesarius. Third 

 upper molar with well developed third inner re-entrant angle. 



Measurements. — Type (young adult male) : head and body, 

 115; tail, 66; hind foot, 21 ; ear from meatus, 13. For cranial 

 measurements see Table, p. 653. 



Specimen examined. — The type. 



Bemarhs. — Although at present very imperfectly known the 

 south Italian Evotomys appears to be a well-characterized race. 



Aspromonte, Calabria. (A. Robert.) 0. Thomas (p). 6. 8. 4. 9. 



{Type of subspecies.) 



EVOTOMYS SKOMERENSIS Barrett-Hamilton. 



1903. Evotomys skom,erensis Barrett-Hamilton, Proc. Royal Irish Acad., 



XXIV, p. 316. Type in British Museum. 

 1910. Evotomys sliomerensis Trouessart, Faune ]\Iamm. d'Europe, p. 167. 



Type locality. — Skomer Island, off coast of Pembrokeshire, 

 Wales. 



Geographical distribution. — Skomer Island. 



Diagnosis. — Size as in the other large European members of 

 the genus ; tail about half as long as head and body ; colour 

 above unusually light and bright, sharply and conspicuously 

 contrasted with buffy white of underparts ; skull about as large 

 as that of E. nageri, but with brain-case unusually ridged and 

 angular, and nasals decidedly longer than diastema, rather 

 abruptly narrowed near middle. 



Colour. — Winter pelage : upper parts a bright light reddish 

 brown approaching the orange-rufous of Ridgway, a narrow area 

 on sides paler and with a distinct buffy suffusion ; underparts 

 and entire fore leg strongly contrasted whitish grey, faintly 

 tinged with pale buff (the combination much paler than the 

 cream-buff of Ridgway), the line of demarcation along sides well 

 defined ; tail sharply bicolor, brownish above, pale cream-buff 

 below ; feet buffy white above, pale hair-brown on furred portion 

 of sole. Summer pelage not known. 



Sktill. — The skull differs notably from that of Evotomys 

 glareolus nageri and E. g. norvegicus in the short, broad, rather 

 strongly ridged and angled brain-case, the conspicuous develop- 

 ment of the mastoid region, which stands out more strongly from 

 general outline of brain-case than in any of the related species, 

 and the unusual length of the nasals, which distinctly exceed 

 the diastema. Instead of diminishing gradually in width from 

 before backward, as in the related species, the nasals contract 

 rather abruptly near middle, so that their general outline is 

 almost spatulate. The nasals are more abruptly bent downward 

 anterioi'ly than in E. glareolus nageri and E. g. norvegicus. 

 Otherwise the dorsal profile is nearly flat, like that of the Alpine 



