104 On Mammals from Somaliland. 



breadth across parietal crests 13; palate length 15*5; 

 diastema 8-7 ; palatal foramina 8-5; length of upper molar 

 series 4 8. 



Hah. Harar. 



Type. Old male. B.M. no. 4. 5. 9. 19. Original number 

 123. Collected 6th November, 1903. 



This spiny mouse seems to differ from any of the described 

 species by its colour and its comparatively non-spinous nape, 

 in which respect it approaches A. Louisce of N. Somali. 

 From the latter, besides its greater spininess, it differs by its 

 much heavier teeth, the breadth of m^ being in A. mullah 

 VQ mm. and in A. Louisce 1"3. 



17. Heterocephalus glaher^ Riipp. 

 ? . Hargeisa. 



18. Fornarina Phillipsi, Thos. 



? . 133. Gerlogobi Wells. — Topotype. 



(?) ?. 141. Wardair. 



The Wardair specimen is peculiar in several respects, but 

 as it is an abnormally old individual nothing can be done 

 with it until we have further evidence as to the cranial deve- 

 lopment that takes place witli age. 



The presence or absence and the time of eruption of the 

 posterior molars in the Heterocephalus group are also rendered 

 somewhat dubious by these most valuable specimens, but 

 until further material is available I do not propose to commit 

 myself to an opinion on the subject. 



19. Hi/strix ffaleata, Thos. {?) . 

 Skull. ?. 147. Gorahai. 



20. Lepus sp. 

 c?. 122. Harar. 



21. Procavia Erlangeri\ Neum. 

 S. 141. Harar. — Topotype. 



22. Procavia Briicei somalica, Thos. 

 S . 152, and skull 153. 50 miles south-east of Buroa. 



