AEVICOLA 



723 



MICROTUS ULPIUS Miller. 



1908. Microhis ulpius Miller, Ann. and Mag. Nat. Hist., Stli ser., i, p. 100, 



January, 1908. Type in British Museum. 

 1910. Microtus (Chionomys) ulpius Trouessart, Faune Mamm. d'Europe, 



p. 184. 



Tii2)e locality. — Hatszeg, Hunyad, Austria-Hungary. Altitude, 

 2000 'feet. 



Geographical distribution. — Known only from the vicinity 

 of the type locality, but probably occurring throughout the 

 Transylvanian Alps and perhaps in the true Carpathians 

 also. 



Diagnosis. — Similar to Microius nivalis, but colour darker and 

 tail usually brown above (often distinctly bicolor throughout) ; 

 posterior border of palate with median ridge sharply defined, its 

 width less than that of deep lateral pit. 



Colour. — Though in general resembling that of Microtus nivalis 

 the colour is distinctly darker, the back strongly tinged with 

 wood-brown and conspicuously clouded with black ; tail usually 

 bicolor, often sharply and conspicuously so throughout. 



Sladl and teeth. — Except for the narrow, sharply defined 

 median ridge and deep lateral pits the palate is as in M. nivalis. 

 The other parts of the skull show no peculiarities. Teeth as in 

 Microtus nivalis, the anterior loop of wjj usually similar to that of 

 M. n. aquitanius. 



Measurements. — External measurements of type (adult female) : 

 head and body, 131 ; tail, 58 ; hind foot, 20 ; ear, 17. A second 

 adult female from the type locality : head and body, 124 ; tail, 68 ; 

 hind foot, 22 ; ear, 17. For cranial measurements see Table, 

 p. 721. 



Specimens examined. — Eighteen, all from the neighbourhood of Hatszeg. 



6 (J, 7 9. Hatszeg, Hunyad, Transyl- C. G. Danford (c). 3. 2. 2. 45-49. 

 vauia, Austria-Hungary. 3. 11. 8. 35-42. 



(3. 2. 2. 48. Type of species.) 



Genus ARVICOLA Lacepede. 



1799. Arvicola Lacepede, Tableau des divisions, sous divisions, ordres et 



genres des mammiferes, p. 10 (amphibius). 

 1836. Hcmiotomys de Selys-Longchamps, Essai monographique sur les 



Campagnols des environs de Liege, p. 7 (sub-genus) part. 

 1857. Paludicola Blasius, Sdugethiere Deutschlands, p. 333 (sub-genus) 



part. Not Paludicola Wagler, 1830. 

 1867. Ochetomys, Fitzinger, Sitzungsb. Math. Naturwiss. CI. K. Akad. 

 Wissensch., Wien, lvi, p. 47 (based primarily on the water-rats of 



Europe). 

 1807. Praticola Fatio, Les Campagnols du Bassin du Leman, p. 36 



(sub-genus) part. Not Praticola Swainson, 1837. 

 1888. Arvicola Lataste, Le Naturaliste, ii, p. 349 (sub-genus). 



3 A 2 



