EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. 103 



MUS GRATUS SORICOIDES Heller. 



Plate 26. 



1914. Mus gratus soricoides Heller, Smithsonian Misc. Coll., vol. 63, No. 7, 

 p. 10. June 24. (Mount Mbololo, Taita Hills, British East Africa; 



type in U. S. Nat. Mus.) 



Specimens. — Four, as follows: 



British East Africa : Mount Mbololo, 3 (Heller) ; Mount Umengo, 

 1 (HeUer). 



MUS TENELLUS ACHOLI Heller. 



riate 26. 



1911. Mxis tenellus acholi Heller, Smithsonian Misc. Coll., vol. 56, No. 17, p. 6. 

 February 28. (Rhino Camp, Lado; type in U. S. Nat. Mus.) 



Specimens. — Three, as follows: 

 Lado: Rhino Camp (Loring). 



MUS WAM^ HeUer. 



Plate 26. 



1910. M\is (Leggada) sorellus Roosevelt, African Game Trails, Amer. ed., p. 473; 



London ed., p. 485. (Not Leggada sorella Thomas, 1909.) 



1911. Mus wavise Heller, Smithsonian Misc. Coll., vol. 56, No. 17, p. 5. Feb- 



ruary 28. (Kapiti Plains, British East Africa; type in U. S. Nat. Mus.) 



Specimens. — Two, as follows: 



British East Africa: Kamiti Farm, Athi Plains, 1 in alcohol 

 with skull removed (Loring) ; Kapiti Plains, 1 (Loring) . 



Two East African forms of mice belonging to the same group as 

 do acJioli and tvamse (a group characterized by the short tail; long 

 snout; and peculiar, elongated palate) are not represented in our 

 collections. These are Mus sorella (Thomas) ^ from near Mount 

 Elgon, and 3Ius tenellus suahelicus (Thomas) ^ from Taveta. 



MUS MUSCULUS GENTILIS Brants. 



1827. M[us\ gentilis Brants, Het Geslacht der Muizen, p. 126. (Egypt and 



Nubia.) 

 1905. Mus musculus gentilis Schwann, Novit. Zool., vol. 12, p. 4. January. 



(Specimen listed below from Kerma.) 



Specimen. — One from — 

 Sudan: Kerma (Rothschild). 



Genus CRICETOMYS Waterhouse. 



1840. Cricetomys Waterhouse, Proc. Zool. Soc. London, 1840, p. 2. (C. gambi- 

 anus.) 



The giant rats listed below are all closely related forms, and it may 

 well be doubted if some of the characters used in separating them 

 hold good when better series of the animals are available for study. 

 The Mount Gargues form, Cricetomys gamhianus raineyi, is a well 



I Ann. and Mag. Nat. Hist., ser. 8, vol. 4, p. 518. 1909. 

 « Ann. and Mag. Nat. Hist., ser. 8, vol. 6, p. 312. 1910. 



G4952— 19— Bull. 99, pt 2 8 



