316 Mr. M. A. C. Hinton on 



and it lias a three-celled alveolus. In thermaicns ^'lil lias two 

 roots only, the anterior labial root being in this tooth tree 

 though very short, whilst the posterior labial and the lin<rii:il 

 roots are fused into a single fang ; the alveolus is two-celled, 

 the cell lor the anterior labial root being very shallow. Tlie 

 lower molars in thermaicus have two roots each, as in turcicus, 

 but the anterior root is in each tooth shorter and thinner, 

 while in ^iTa and ^2 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 Mehely'a 

 illustration (Taf. xxiv. fig. 5), would appear to be lower and 

 thinner than in turcicus. 



2. Spalax monticola coryhanthim, subsp. n. 



Ilab. — Murad Dagh ; type from a spot 15 miles N.E. of 

 Eushak, and about 150 miles E. of Smyrna. 



Type. — An adult (?sex) collected and presented to the 

 British jMuseum by .Mr. A. Buxton (B.M. 8. 11. 21. 1). 

 No other specimen known. 



Description. — Shall : the skull is larger than in anatoli<->is, 

 cilicicus^ and captoriwij about iis lar^e as in turcicus and ther- 

 inaicus (condylo-basal leugih bl'S luiii.). 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 cunspieu'^usly longer than broad ; the 

 |)osterior 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 ; nasals 

 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 intraorbital foramen ; suj)raoccipital very 

 short, much shorter than the fronto-parietal length (height ut 

 skull contained 2'()7 times in length lanibihi to nasal tips) ; 

 infraorbital foramina relatively large; lachrymal dislinelly 

 visible from above as a large rectangular ossicle measuring 

 2"G mm. in length; ascending ramus of maxillary zygomatic 

 process slender; external auditory meatus wide; anterior 

 part of palale shorter than hinder part, its length decidedly 



