28 ARKIV FÖR ZOOLOGI. BAIiTD 10. N:0 12. 



Skulls of Dendrohyrax 

 from Donya Sabuk 



typ© cf ad. cT ad. 



Greatest breadth of forehead at postorbital pro- 



cesses 37 » 37 » 



Palatal breadth between inside of m^ 14 » 14 » 



» » » outside of m^ 24,6 » 24,7 » 



Diastema (measured to alveolar margin of i^) . . 11,5 » 13,4 » 



Length of molar series 31,5 » 31,3 » 



Breadth of m^ 5,3 » 4,9 » 



Diastance (least) between outside of parietal ridges 



near the intorparietal suture 11,8 » 14,0 » 



This Dendrohyrax is widely different from its geographi- 

 cal neighbours of the same subgenus. It has no likeness 

 whatever with P. (D.) valida True of Kilimandjaro which 

 is brown above with orange-coloured dorsal spöt and has 

 more or less cinnamon-coloured or buffy lower side. With 

 P. {D.) crawshayi Thomas from Kenya it is perhaps more 

 nearly related, but the former has the dorsal hair »slaty grey 

 basally, gradually darkening to black at about three-fourths 

 their length», and the »under surface along middle line, from 

 interramia backwards, fulvoiis or deep buffy» — — — . P. 

 (D.) crawshayi lai/cipia Dollman from Rumruti is lighter 

 and approaches in this respect more to the present species 

 than the main form does. It has, however, a much larger 

 skull with condylo-incisive length measuring as much as 

 95 mm., and the maxillary tooth-row 37 mm. P. {D) neumanni 

 Matschie from Zanzibar has »Riickenhaare von der Wurzel 



bis gegen die Spitze dunkelgrau — mit 3 hellen und 



3 dunklen Ringen». P. (D.) scheelei Matschie has also the 

 dorsal hair basally dark grey. P. (D.) scheffleri Brauer 

 has the dorsal hair »braun, nach der Spitze zu mit etwas 

 rötlichem Ton, mit einer 0,7 [cm.] langen kittfarbigen Binde 

 und einer 0,2 [cm.] langen rötlich braunen Spitze» etc. 



P. {D.) terricola Mollison from East-Usambara has the 

 colour of the back »dunkelbraun, rostbraun iiberflogen» and 

 the hairs are basally grey. The hairs of the dorsal spöt are 

 »im ersten Drittel schwarz, im mittleren gelblich weiss und 

 im letzten hellrostbraun orefärbt 



». 



With regard to the black basal parts of the hair of 



^ Morph. Jahrb. 1905, p. 241. 



