new Subspecies of Spalax monticola. 317 
greater than the distance between the anterior and thie poste- 
rior palatal foramina; posterior border of palate situate 
behind level of alveoli of ™-8-~™-5, straight, and without median 
spine; postpalatine foramina slightly in advance of the 
septum between ”-? and ™2; pterygoid and paroccipital pro- 
cesses as in anatolicus. 
Mandible—The lower jaw shows a decided tendency to 
assume the form characteristic of Macrospalax; it is very 
large and robust ; the coronoid process is very powerful and 
erect ; the incisura between the coronoid process and the 
condyle is very long and flatly rounded ; alveolar process 
very large and heavy, the corono-alveolar incisura wider, 
though as rounded as in anatolicus; angular process about 
as in anatolicus, with well-marked and definitely inflected 
angulus anterior; the alveolar and condylar lengths about 
equal. 
Dentition.—Incisors: upper incisors faintly yellow, the 
colour most intense along middle line ; lower incisors nearly 
white. Upper and lower incisors with faint traces of median 
groove. 
Cheek-teeth_—™:1 of normal pattern, anterior labial fold 
represented by an islet, the second labial and the lingual fold 
still open ; ™* exactly similar; “8 with a single circular 
islet. The right and left lower molars show a curious diffe- 
rence in their respective states of wear; x7 with labial fold, 
simple anterior lingual fold, the posterior lingual fold repre- 
sented by a very small islet (L.), already gone (R.); as (R.) 
with labial and anterior lingual folds still open, the posterior 
lingual fold entirely gone, (L.) similar, but anterior lingual 
fold just insulated ; a3 (R.) with an anterior lingual islet, 
the labial fold still open and deep, (L.) with merely a central 
triangular islet and no other complication. 
Molar roots and alveoli.—®1 has merely one root, the large 
lingual element being fused throughout with both the labial 
elements, the only interval being that left between the two 
labial portions ; alveolus very simple, its sole complication 
being the vestigial labial septum which fits into the inter- 
space between the two labial elements of the single fang; 
m2 and ™8 quite similar to “1 in these respects. In the 
lower jaw wi has two large roots, and its alveolus is divided 
by a complete though thin septum ; in y4 the anterior root 
shows traces of a lingual and a labial element, but it is 
partially fused on the lingual side with the posterior root, and 
in the alveolus therefore the transverse septum is incomplete. 
