new African Mammalia. 341 
Skull: greatest length 21; basilar length 14:8; greatest 
breadth 11; nasals, length 7°6; interorbital breadth 3; palate 
length 8°7; diastema 5; palatal foramina 3°8 ; length of 
upper molar series 3:1, of m’ 1°6. 
Hab. Efulen, Bulu Country, Cameroons. Alt. 500 m. 
Type. Female. B.M. no. 3. 2. 4. 24; original number 93. 
Collected 29th July, 1901, by Mr. G. L. Bates. Hight 
specimens. 
The only other West-African Dendromys, D. Pecilet, 
M.-Edw., has a dark dorsal stripe, grey-based_belly-hairs, 
and molars which, if their dimensions are correctly given *, 
are proportionally larger than in any other species of the. 
genus. 
Dendromys insignis, sp. n. 
A large species, with a broad dorsal stripe. 
Size large. General colour above slightly more buffy than 
Ridgway’s ‘‘ raw umber” ; sides clearer buffy, passing with- 
out line of demarcation into the dull creamy buff of the 
under surface, where the hairs are slaty grey for three fourths 
their length. No stripe on head, though the centre of the 
crown is very faintly darker. Dorsal stripe commencing at 
withers, very broad (over 4 millim.), black, and conspicuous. 
Ears large, brown. Limbs dull buffy on outer surface, 
whitish buffy on inner; hands and feet white. Tail long, 
well haired, brown above, white below. 
Skull large, light, and papery; muzzle long ; interorbital 
space narrow, smooth, and rounded; palatal foramina long. 
Dimensions of the type (measured in skin) :— 
Head and body 88 millim.; tail 104; hind foot(s. u.) 21°5; 
ealgn Le 
Skull: greatest length 24; basilar length 17°8; greatest 
breadth 12; length of nasals 9°15; interorbital breadth 3:2; 
diastema 6:4; palatal foramina 5-2 ; length of m* 2:2; length 
of lower molar series (the upper imperfect) 3°5. 
Hab. Nandi, British East Africa. Alt. 2000 m. 
Type. Male. B.M. no. 99. 8. 4.65. Original number 8. 
Collected 2nd May, 1898, and presented by F. J. Jackson, 
Esq. One specimen. 
‘¢ Lives in old birds’ nests” (J. J. J.). 
This fine tree-mouse, which adds one more to the many 
East-African mammals discovered by Mr. I. J. Jackson, is 
one of the D. mesomelas group, and is readily distinguishable 
* Skull 21 millim.; upper molar series 4; m’ 2:5 (Pousargues, Ann. 
Sci. Nat., Zool, iu. p. 386, 1896), 
