﻿TO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 59 



amina, 6.2; maxillary toothrow, 4.5; diastema, 7.6; condylo-incisive 

 length of mandible, 17; coronoid-angular depth of mandible, 8.2. 



A large series of topotypes were secured, and others were col- 

 lected on a neighboring mountain, Umengo. They inhabit only the 

 heavy forests found on a few of the higher summits of the Taita 

 Mountains. Geographically they are isolated by many miles of 

 desert from their nearest allies of the highland forests of Mt. Kenia 

 and the Kikuyu Escarpment. 



ZELOTOMYS HILDEGARD^ VINACEUS, new subspecies 



Taita Broad-headed Mouse 



Type from Ndi, Mt. Mbololo, Taita Mountains, British East 

 Africa, altitude 3000 feet; adult female; number 181798, U. S. 

 Nat. Mus. ; collected by Edmund Heller, November 4, 191 1 ; original 

 number, 4578. 



Characters. — Similar to hildegardce, differing in lighter dorsal 

 coloration, more whitish underparts and tail, and shorter pelage; 

 mesopterygoid fossa narrower, and incisors lighter colored. 



Coloration. — Dorsal color wood brown, the median region lined 

 sparingly with black; sides more buffy, and becoming pure buff 

 where they meet the light underparts ; feet white ; ears broccoli- 

 brown ; tail white, with a narrow mid dorsal streak of drab ; under- 

 parts cream-buff, the hair everywhere plumbeous basally. 



Measurements. — Head and body, 117 mm.; tail, 98; hind foot, 

 22.5; ear, 16. Skull: greatest length, 29.2; condylo-incisive length, 

 29.5 ; basilar length, 25.7 ; zygomatic breadth, 16.5 ; interorbital con- 

 striction, 5; nasals, 11.8 x 3.2; diastema, 9.2; palatal foramina, 7.5; 

 post palatal length, 11.4; maxillary toothrow, 5.5; condylo-incisive 

 length of mandible, 23 ; coronoid-angular depth of mandible, cj-5- 



Three specimens secured in the vicinity of Ndi. They agree 

 closely with the type. In life the tail, which is quite hairless, is a 

 delicate vinaceous-pink, and by this character alone it is readily 

 distinguishable from Epimys concha hildebrandti, with which it 

 agrees closely in pelage and size, and with which it is associated. 



THAMNOMYS DOLICHURUS LITTORALIS, new subspecies 

 Swahili Tree Rat 

 Type from Mazeras, British East Africa; adult male; number 

 181799, U. S. Nat. Mus. ; collected by Edmund Heller, December 

 22, 191 1 ; original number, 4949. 



