162 Miller— Descriptions of Two New Mole Rats. 



Anteriorly the two bones form a single point, and the latero-antenor 

 border is continued backward almost to lambdoid crest, so that the out- 

 line of the bone is very nearly a right triangle. Sagittal crest well de- 

 veloped. Anterior margin of frontal straight. 



Teeth. — The teeth agree with those of Spalax microphthalmus, as describ- 

 ed by Nehring* except that each of the first and second upper molars has 

 an enamel island in the anterior loop, making the pattern an exact re- 

 versal of that in the first and second lower molars of Spalax hungaricus.j 

 In all of the teeth the pattern is essentially alike, and consists of a single 

 narrow reentrant fold on each side. The inner reentrant is placed a little 

 in advance of the outer, and is curved forward, while the outer curves 

 back. In the maxillary teeth the folds are all open, but in the lower 

 jaw those of the inner side are closed. The anterior faces of the incisors 

 both above and below are finely roughened by minute longitudinal 

 wrinkles, but there are no distinct grooves. 



Mens urem en is.— Head and body, 230; hind foot 29 (25); skull, greatest 

 length, 52; basal length, 45; basilar length, 42: occipito-nasal length 

 (from inion), 41; palatal length, 26; diastema, 19; length of nasals, 19; 

 breadth of both nasals together anteriorly, 7; breath of both nasals to- 

 gether posteriorly, 2.6; greatest breadth of rostrum, 11.4; zygomatic 

 breadth, 38; mastoid breadth, 26; least interorbital breadth, 6; palatal 

 breadth between middle molars, 2; depth at middle of palate, 18.4; least 

 depth of rostrum behind incisors, 7; mandible from condyle, 31; mandi- 

 ble, from root of incisor, 32; depth of mandible through coronoid pro- 

 cess, 18.8; upper molars, alveoli, 7.6; upper molars, crowns, 6.6; width 

 of second upper molar (crown), 2.8 ; lower molars, alveoli, 7 ; lower 

 molars, crowns, 6.6 ; width of upper incisor at alveolus, 3 ; width of 

 lower incisor at alveolus, 3.4. 



Specimens examined. — One, the type. 



Remarks. — This is probably the same animal as the Rumanian Spalax 

 hungaricus recorded by Matschie, in 1901. J It is readily distinguishable 

 from the Hungarian species, however, by its much larger size and by 

 the presence of an inner reentrant enamel fold in the posterior molar 

 both above and below. Spalax dolbragew is apparently more closely re- 

 lated to S. microphthalmia. 



Spalax berytensis, sp. nov. 



Type.— Adult female (skin and skull), No. $finb. 

 tional Museum. Collected at Beyrout, Syria, April, 1878, by W. T. Van 

 Dyck, 



*Sitz.-Ber. Gesellsch. naturforsch. Freunde zu Berlin, 1S97, p. 165. 



f In the posterior loop of the left middle lower molar there is a very 

 minute enamel island whose presence may be abnormal. 



{ Sitz.-Ber. Gesellsch. naturforsch. Freunde zu Berlin, 1901, p. 237. 

 Prundu, Rumania. 



