20 Annals of the Carnegie Museum. 



(3,000 feet), and Gardula (4,000 feet), differ from the species repre- 

 sented in the U. S. National Museum and from descriptions of those 

 in the British Museum, and are described below as new subspecies. 

 The first, a large form from the Chilalo Mountains, by its heavy 

 molars and strongly built skull, together with its short tail, well defined 

 dorsal line, and lightly lined coat, is quite distinct from the latter two, 

 which diff'er from each other mainly in color and in the proportionate 

 length of their longer tails, the specimens from Sadi Malka tending to 

 resemble A. tcsticidaris jebelce Heller and those from Gardula .4. a. 

 jiubilajis Wroughton. 



10. Arvicanthis abyssinicus blicki subsp. nov. (Plate IV, figs. 1-5.) 



Type from Hora Mountain Base Camp, South Chilalo Mountains, 

 Abyssinia, altitude 9,000 feet. (Original field-number 26, d^, D. G. R., 

 Feb. 28, 1912.) 



General Characters. — A large light-colored form with short tail, 

 prominent median dorsal line, undifferentiated lower parts, and ex- 

 ceptionally heavy molars. 



Length of foot 33 mm.; of tail 150 mm.; alveolar length of upper 

 tooth-row 8.5 mm. 



Pelage. — The tawny olive^^ coloration of the dark median area and 

 light-lined pinkish buff of the lateral portions of the back pass into 

 wood-brown and drab-gray on the under parts. Black hair of scant 

 dorsal lining long (23 mm.), main coat bi-colored, bases of hair warm 

 sepia, tips light buft' on under parts and sides to warm buff on upper 

 and posterior portions of back; hairs of rump 9.5-1 1.5 mm. in length; 

 outer portions of arms and legs same as back; throat and inner portions 

 of limbs scantily haired and faded inner coat prominent; small post- 

 auricular patches of soft white hair; ear-covering and sides of snout 

 warm buff; tail well clad, buff below and on sides, black-brown above 

 (in some specimens whole tip is black) ; hair of body at base of tail 

 ochraceous tawny; feet gray, washed with warm buft"; claws opaque 

 black throughout. 



Skull. — Strongly built and exceptionally broad, especially in 

 zygomatic region (zygomatic breadth 19-21 mm. in series of eight 

 specimens, against 18.5 in typical A. ahyssinicus Ruppell);^* frontals 

 depressed between strong supra-orbital ridges, which send spurs into 



1' Ridgway, I. c. {cf. footnote 4). 



18 Cf. Dollman, Ann. and Mag. Nat. Hist. (8), Vol. 8, 1911, p. 334, et seq. 



