198 Mr. G. S. Miller on 



hind foot 17-5; ear from meatus 11. Skull: condylo-basal 

 length 26-6 (25) * ; zygomatic breadth 14-4 (14'4) ; distance 

 from interorbital constriction to back of condyle 15*4 (14) ; 

 interorbital constriction 3-4 (3-2) ; occipital breadth 12*2 

 (11-4) ; occipital depth (median) 6-6 (6-8) ; palatal depth 

 8-0 (7-8) ; nasal 7-8 (7*4); diastema S'O (7-4); mandible 16*6 

 (15'8) ; maxillary tooth-row 6*4 (5'8) ; mandibular tooth- 

 row 6-2 (5-8). 



Specimens examined. — Seventeen, all from the typo 

 locality. 



Micro tus angular is, sp. n. 



2>jo«.— Adult male (in alcohol). B.M. no. 80. 10. 28. 2. 

 Collected in Transylvania (probably near Hatszeg, Hunyad, 

 Hungary) by C. G. Danford, Esq. Presented by the 

 collector. 



Characters. — A large member of the Microtas arvalis group, 

 about equal to the Grecian M. hartingi in size, but with 

 much longer tail (about 40 mm. instead of 24 to 27 mm.). 

 Skull peculiar in the very short, deep rostrum (depth at back 

 of nasal noticeably greater than distance between front of 

 zygoma and anterior extremity of nasal) and the unusually 

 conspicuous angle (about 34° instead of about 18° to •2,-2° as 

 in M. arvalis, M. hartingi, and M. orcadensis) at which the 

 nasals slope downward ; audital buUas relatively larger than 

 in M. arvalis, but not so strongly inflated as in M. hartingi. 

 Teeth with pattern of enamel-folding as in Microtus arvalis, 

 but all of the triangles, especially those of lower molars, with 

 transverse diameter noticeably increased and area of dentine 

 spaces reduced. Colour apparently as in M. arvalis. 



Measurements. — Head and body 115 mm. ; tail 41 ; hind 

 foot 18; ear from meatus 12. Skull : condylo-basal length 27 

 (ca.)t; zygomatic breadth 16*4 (ca.) ; interorbital breadth 

 4-0 (ca.) ; occipital breadth 13 ; occipital depth 7*6 (ca.) ; 

 nasal 8*0; diastema 8*4; mandible 17*4 (ca.) ; maxillary 

 tooth-row 6'6 ; mandibular tooth-row 6*4. 



Specimen examined. — The type. 



Microtus asturianus, sp. n. 

 Type. — Adult female (skin and skull). Collected at 



* Measurements in parentheses are those of an old male Microtus 

 arvalis I'rom Konigsberg, Germany (no. 112213, U.S. National Museum). 



t Certain measurements of the badly broken skull were taken before 

 cleaning, while the fragments were still in approximately normal 

 position. 



