Frick : New Abyssinian Rodents. 



13 



Measurements. 



No. 7SI9. Rhoads' L. ^ , 



Type I Type \No.g2,pul- 



bilenensis, \ pulvinaius, \ **"'''"^ cf, 



No. 91, pul- 



vinaius 9 , 



mm. 



Length of head and body 



Length of tail 



Length of hind foot 



Greatest length of skull 



Basilar length of skull 



Condylo-incisive length 



Zj^gomatic breadth 



Interorbital breadth 



Squamosal breadth 



Length of nasals j 



Breadth of nasals 



Length of diastema 



Alveolar length of upper row of molars 



Length of palatal foramen 



Length of bullae 



Depth of brain-case 



Depth of maxillaries at fronto-nasal 



suture 



Length of mandible 



92. 

 139-151.0 

 25-5 



5-9 



11.6 

 2.6 



7.2 

 3-8 

 4.6 



15- 



137- 

 24-S 

 30.6 

 22.2 

 26.S 



5-6 

 13-4 

 13. 



2.6 



7.8 



4- 



5-2 

 10.6 



9.1 



7.1 

 IS- 



86. 

 127-137 



25- 



3I-I 

 22.6 



16.2 



S-5 



13-7 



II. 8 



2.3 



8. 

 4.1 



5-7 

 5 



II 



iS-3 



130-137 

 24-5 

 27.2 

 19.2 



23-5 

 14.2 



5-1 

 12.7 

 9.8 

 2.1 

 6.6 

 4- 

 4-5 

 10.2 



6.3 

 13.5 



over the dark area of the back are surtipped with black and intermixed 

 with long black hair; hair of lower flanks white at base, but with light 

 ochraceous bufif tips, which blend into the pelage of the upper parts, 

 and are sharply defined from the uniformly white hair of the under 

 parts; coloration of the outer side of the thighs continuous with that 

 of the flanks; arms and inner sides of thighs white; sides, shoulders, 

 and muzzle light ochraceous bufif; the bright coloring of muzzle 

 continued further down on sides of face than in G. pidvinatus Rhoads, 

 where the white of the chin encroaches on the same; occiput dusky; 

 slight markings beneath eye and half-way between corner of eye and 

 tip of nose, distinctly backwardly prolonged superciliary line, and small 

 post-auricular patches, white; margins of eye and oblique streak 

 posterior to same, dusky; main portion of tail light ochraceous buflf, 

 dorsally marked with black, below paler, but without the white 

 streaking of G. pidvinatus; pencilled portion well-developed, black 

 above, white below (max. length of hair 12 mm.) 



The collection of the writer contains two specimens of a Gerhillus 

 collected at the Oasis of Hor, just south of the Abyssinian border, 

 which in the proportions of the skull appears similar to Dr. A. Donald- 

 son Smith's Gerbillus pidvinatus from Sheik Hussein (see description 



