EAST APRICAN MAMMALS IN NATIONAL. MUSEUM. 55 



Genus STEATOMYS Peters. 



1846. Steatomys Peters, Ber. Konigl. Preiiss. Akad. Wiss., Berlin, p. 258. (S. 

 pralensis.) 



The fat mouse is rare in British East Africa if one can judge its 

 abundance from the number of specimens which have been recorded 

 in print. The Smithsonian African Expedition procured the only 

 specimens in our collection, and these are few in number. 



STEATOMYS ATHI HeUer. 



Plate 17. 



1910. Steatomys athi Heller, Smithsonian Misc. Coll., vol. 54 (No. 1924), p. 3. 



February 28. (Ulukenia Hills, Athi Plains, British East Africa; type in 



U. S. Nat. Mus.) 

 1910. Steatomys athi Roosevelt, African Game Trails, Amer. ed., p. 472; London 



ed., p. 484. 



Specimens. — Four, including one in alcohol, as follows: 

 British East Africa: Ulukenia Hills (Loring). 



Genus ZELOTOMYS Osgood. 



1910. Zelotomys Osgood, Field Mus. Pub. Zool., vol. 10, No. 2, p. 7. February. 



{Z. hildegardex.) 



The two subspecies of this *' broad-headed" mouse hsted below 

 are closely related, and their distinctness can not be considered as 

 certain until more material is studied. In the original diagnosis of 

 the genus, Mr. Osgood erroneously stated that the molars are more 

 hypsodont than in "J/its" (=^Rattus); as a matter of fact they are 

 even lower crowned. Mr. Thomas has already corrected the mammary 

 formula to 3-2=10.' 



For measurements of specimens see page 56. 



ZELOTOMYS HILDEGARDEX HILDEGARDEiE (Thomas). 



1902. Mus hildegardeiv Thomas, Ann. and Mag. Nat. Hist., ser. 7, vol. 9, p. 219. 



March. (Machakos, British East Africa; type in British Museum.) 

 1910. Zelotomys hildegardex Osgood, Field Mus. Pub. Zool., vol. 10, No. 2, p. 7. 



February. 

 1910. Zelotomys hildegardx Roosevelt, African Game Trails, Amer. ed., pp. 



473, 478; London ed., pp. 485, 489. 



Specimens. — Two, as follows: 



British East Africa: Juja Farm, 1 (Loring); Kapiti Plains, 1 

 (Loring). 



ZELOTOMYS HILDEGARDEX VINACEUS Heller. 



Plate 18. 



1912. Zelotomys hildegardx (sic) vinaceus Heller, Smithsonian Misc. Coll., vol. 

 59, No. 18, p. 10. July 5. (Ndi, Mount Mbololo, Taita Hills, British 

 East Africa; type in U. S. Nat. Mus.) 



1 Ann. and Mag. Nat. Hist., ser. 8, vol. 16, p. 481. December, 1915. 

 64952— 19— Bull. 99. pt 2 .5 



