242 On Three new African Mice. 
Dendromus insignis kivu, subsp. n. 
Like true insignis, but averaging smaller, and with rather 
shorter fur. Colour quite similar, though the dorsal line is 
not quite so heavy ; ; under surface ached with buffy. 
Skull ranging from 22°5 to 24 mm. in total length, that of 
true insignis ¢ “alwa ays about 25 mm. Supraorbital “edge more 
sharply squared and with a greater tendency to the formation 
of supraorbital ridges, which run forward to the Jevel of the 
hinder end of the nasals. Molars rather variable in size, m’* 
in the type only 2°0 mm. in length, but in other specimens 
it may be 2°2 or 2°3 mm., as is usual in ¢nsignis. 
Dimensions of type (measured in flesh) :— 
Head and body 75 mm.; tail 88; hind foot 18-5; 
ear 14, 
Skull: greatest length 22°5; condylo-incisive length 19°6 ; 
zygomatic breadth 11; nasals 9; interorbital breadth 3:1; 
breadth of brain-case 10:3; palatilar length 9°2; palatal 
foramina 4°9; upper molar series 3°2 ; length of m! 2:0. 
Type. Adult male. B.M. no. 11.12. 3.117. Original 
number 2170. Collected 31st May, 1911, by Robin Kemp ; 
presented by Oldfield Thomas. 
Hab, Kivu Region. Type from Buhamba, alt. 2000 m. ; 
other specimens from Mukanda and Burunga. 
While true insignis is very constant in size of skull, this 
form, from further south near Lake Kivu, is curiously 
variable; but all the six specimens available are distin- 
guishable by the characters above detailed. 
I confess I fail to see sufficient reason for the distinction 
from D. insignis of the Mt. Gargues “ Dendromus mesomelas 
pereivalt,” Heller, our series from the Aberdares containing 
specimens agreeing both in colour and skull with the type of 
insignis, and others with the topotypes of percivali given us 
by Mr. Percival. The lumping of ¢nsignis with the southern 
D. mesomelas appears equally unfounded. 
Dendromus (Poemys) nigrifrons vulturnus, subsp. n. 
Similar in all essential respects to true D. nigrifrons, but 
the hairs of the whole underside broadly washed with bufty 
above their slaty bases. Frontal and dorsal markings well- 
defined. General colour of back as in négrifrons or slightly 
more buffy. 
Dimensions of the type :— 
Head and body 70 mm.; tail 75 ; hind foot 17. 
Skull: tip of nasals to back of interparietal 20; palatilar 
