DOLOMYS 343 



border of the dental foramen or even slightly higher. Cheek- 

 teeth essentially like those of D. iniUeri; but third root of m?- 

 sometimes tending to fuse with the anterior root, and w? of a 

 somewhat more reduced type. The latter tooth presents three 

 outer and three inner salient angles as usual in the group; but 

 the second outer angle is relatively small, as in some species of 

 Pitymys, and the first outer fold separating this structure from 

 the anterior loop is shallow, its inner portion, judging from a 

 specimen figured by Mehely {op. cit., Taf. iv, fig. 10), being 

 reduced by insulation. The vestigial third outer infold, repre- 

 sented by the concave posterior wall of the third outer angle, 

 is still shallower than in D. milleri. As the result of these differ- 

 ences only the second triangle (second inner angle) is substantially 

 closed in D. episcopalis ; whereas in D. milleri there are four sub- 

 stantially closed dentinal spaces behind the anterior loop. In the 

 nil the anterior loop is smaller and slightly more reduced than in 

 D. milleri, a sixth inner angle being apparently never present, at 

 all events in adult stages of wear. General form of this tooth 

 much like that of Evotomys. 



Measurements (according to Mehely). — Length of tooth-rows, 

 m^-rn^ measured at grinding surface, 5-5 mm. ; m^-m^, 5*2-6. 

 Individual teeth: m^, 2-2-1; m^, 1-6-1-8; m^, 1-6; ?%, ad. 2-8, 

 juv. 2-4— 2-6; m^, ad. 1-6, juv. 1-5; m^, ad. 1-5, juv. 1-3-1-4. 



Remarks. — Prof. Mehely places this species in a special genus 

 Pliotnys, but although it is quite sharply differentiated from D. 

 milleri by its smaller size and more reduced m^ the characters 

 are of specific and not of generic value. The peculiarities of the 

 m^ in D. episcopalis are exactly those which characterize the 

 corresponding tooth of several widely different genera such as 

 Ahicola, Hyperacrius and some species of Pitymys. 



3. Dolomys bogdanovi Martino. 

 1921. Microtus (Chionomys) bogdanovi Martino, Ann. Mag. N.H., 



[9], 9, p. 413. 

 1925. Dolomys bogdanovi Hinton, Proc. Linn. See. London, 1924-25, 



p. 36 (October); Abstr. Proc. Linn. Soc. London, p. 2, April 23, 



1925. 



Type. — B.M., No. 22.7.5.1; young male, skin and skull, 

 collected December 1, 1921, by E. and V. Martino. 



Type locality. — Cetinje, Montenegro. Altitude 680 metres. 



Ra7ige.—Ts.no\yn only from the type locaUty. 



Characters. — Size large, hind-foot 25 mm. ; condylo-basal 

 length 32-7 mm. Tail long, about three-fourths the length of 

 the head and body. Ears large, suborbicular, and densely 

 haired. Thumb very small, bearing a minute flattened nail; 

 claws of other digits short and sharp, about equal in length on 

 hands and feet. Palms and soles naked ; soles becoming hairy 

 towards the heels. Palmar pads 5 ; plantar pads 6 ; all pads, 

 but especially the posterior plantar tubercle, very large. 



