64 BULLETIN 99, UNITED STATES NATIONAL MUSEUM. 



(ENOMYS BACCHANTE BACCHANTE (Thomas). 



1903. Mus hypoxanthus bacchante Thomas, Ann. and Mac;. Nat. Hist., eer. 7, 



vol. 12, p. 342. September. (Nandi, British East Africa; type in 



British Museum.) 

 1910. (E[nomys] bacchante Thomas and Wroughton, Trans. Zool. Soc. London, 



vol. 19, p. 510. March. 

 1910. (Enomys hypoxanthus bacchante Roosevelt, African Game Trails, Amer. 



ed., pp. 473, 478; London ed., pp. 485, 490. 



Specimens. — Ten, from localities as follows: 



British East Africa: Aberdare Mountains, 4 (Heller); Mount 

 Kenia, west side, 4 (Loring); Upper Nzoia Kiver, Guas Ngishu 

 Plateau, 1 (HeUer); Wambugu, 1 (Loring). 



Thomas has named a form of (Enomys from the Aberdarcs {(E. oris) 

 and one from Mount Kenia (CE. bacchante moerens)} I can find no 

 specimens in our collection from these localities which differ appre- 

 ciably from the Nzoia River haccTiante or resemble the animals 

 described. 



I assume that the type locality of bacchante is the old Nandi Station, 

 some distance northeast of the new Nandi, and near the edge of the 

 Nandi .Escarpment. This is probably about the western limit of 

 distribution of this dark race, which apparently gives way only a 

 slight distance to the westward to the brighter, yellow-rumped form 

 of Uganda and the immediate vicinity of Kavirondo Gulf. 



The form of the antorbital plate has been commonly used as a 

 distinguishing character for species and subspecies of (Enomys, and 

 is used by Thomas and Wroughton in their key. While there 

 may be slight average difference between specimens of exactly 

 comparable age of different subspecies, still the change in the shape 

 of this plate in (Enomys with the development of the masseter muscle 

 is frequently so great that the character is of no practical value in 

 separating forms. 



Loring collected this species up to 10,700 feet on Mount Kenia 

 and HeUer trapped specimens on the summit of the Aberdares at 

 11,000 feet. 



(ENOMYS BACCHANTE EDITUS Thomas and Wronghton. 



1910. (Enomys bacchante editus Thomas and Wroughton, Trans. Zool. Soc. 

 London, vol. 19, p. 509. March. (Mubuku Valley, East Ruwenzori, 

 Uganda; type in British Museum.) 



Specimens. — Twenty-seven, as follows: 



British East Africa: Kaimosi, 26, including 4 in alcohol (Heller); 

 Yala River, 1 (Heller). 



The specimens in this series differ from skins of 0. bacchante 

 bacchante in their paler general coloration and much brighter, more 

 ochraceous, rumps and lower backs. 



> Ann. and Mag. Nat. Hist., ser. 8, vol. 7, pp. 379-381. April, 1911. 



