316 Mr. M. A. C. Hinton on 
and it has a three-celled alveolus. In thermaicus “3 has two 
roots only, the anterior labial root being in this tooth free 
though very short, whilst the posterior labial and the lingual 
roots are fused into a single fang ; the alveolus is two-celled, 
the cell for the anterior labial root being very shallow. The 
lower molars in thermaicus have two roots each, as in turcicus, 
but the anterior root is in each tooth shorter and thinner, 
while in 73 and 7 it shows far weaker traces of a more 
primitive division into an inner and an outer fang. Each 
alveolus is divided into two cells by a continuous transverse 
septum, but in each case this, on comparison with Méhely’s 
illustration (Taf. xxiv. fig. 5), would appear to be lower and 
thinner than in ¢urcicus. 
2. Spalax monticola corybantium, subsp. n. 
Hab.—Murad Dagh; type from a spot 15 miles N.E. of 
Eushak, and about 150 miles HE. of Smyrna. 
Type.—An adult (?sex) collected and presented to the 
British Museum by Mr. A. Buxton (B.M. 8. 11. 21. 1). 
No other specimen known. 
Description.—Skull : the skull is larger than in anatolicus, 
cilicicus, and captorum, about as large as in turcicus and ther- 
maicus (condylo-basal length 51°3 mm.). It has two characters 
which readily distinguish it from the skulls of any of its 
nearest geographical allies; the parietals are very narrow in 
the adult and very irregularly overlapped by the frontals and 
squamosals, each being conspicuously longer than broad ; the 
posterior ends of the short anterior palatal foramina are very 
nearly in line with the hinder borders of the maxillary zygo- 
matic processes. In other respects it resembles one or other 
of the various subspecies mentioned in this paper. Snout 
broad and heavy, rather wider at middle than at base ; nasal 
with an anterior constriction and reaching back as far as the 
level of the hinder margins of the infraorbital foramina or a 
little beyond, although barely equal in length to the frontal 
and parietal combined ; processus naso-basalis well-developed, 
reaching centre of infraorbital foramen ; supraoccipital very 
short, much shorter than the fronto-parietal length (height of 
skull contained 2°07 times in length lambda to nasal tips) ; 
infraorbital foramina relatively large; lachrymal distinctly 
visible from above as a large rectangular ossicle measuring 
2°6 mm. in length; ascending ramus of maxillary zygomatic 
process slender; external auditory meatus wide; anterior 
part of palate shorter than hinder part, its length decidedly 
