EAST ATRICAN MAMMALS IN NATIONAL MUSEUM. 25' 



Specimens. — Thirteen, from localities as follows: ' 

 Bkitish East Africa: Fort Hall, 2 (Mearns); Mtoto Andoi, 6 

 (Heller); Oni, 1 (Loring); Wambugii, 4 (Loring, Mearns). 



The specimens from Mtoto Andei are apparently inseparable from 

 those from the vicinity of Fort Hall. As with all ground squirrels, 

 skins of this species are frequently stained from the soil and the 

 color of the feet, tail, and even the entire body is sometimes greatly 

 changed. This is especially so with animals living in red soil and the 

 pigment can sometimes be seen with a strong glass. 



2 1 

 Mearns records the mammge as ^-^-y = 3 pairs, on a specimen, 



from Wambugu. 



Family CRICETID^. 



Genus DIPODILLUS Lataste. 



1881. Difodillus Lataste, Le Naturaliste, vol. 1, p. 506. {D. simoni.) 



Four forms of these pigmy gerbils are recognized in British East 

 Africa; three of them are included in the National Museum collection. 

 The fourth, described by Dolhnan from Voi as Dipodillus percivali,^ 

 is probably the GerhiUus pusiilu^ of Peters,^ the type of which came 

 from Taita and is preserved in the Berlin Museum. Numerous 

 species are known from northern Africa. 



For measurements of specimens of Dipodillus see table, page 26. 



DIPODILLUS WATERS! (de Winton). 



1901. GerhiUus {Dipodillus) watersi de Winton, Nov. Zool., vol. 8, p. 399. De- 

 cember 31. (Shendi, Sudan; type in British Museum.) 

 1905. Dipodillus watersi Schwann, Nov. Zool., vol. 12, p. 3. January. 



Specimens. — Three, as follows : 



Sudan: Kerma, 1 (Rothschild); Merowe, 2 (Rothschild). 



This species is superficially very much like Dipodillus stigmonyx 

 from Khartoum, but is slightly paler in color and has a smaller hind 

 foot. 



DIPODILLUS STIGMONYX (Heuglin). 



1877. Meriones stigmonyx Heuglin, Raise Nordost-Afrika, vol. 2, p. 78. (Khar- 

 toum, Sudan.) 



Specimens. — Six, including two in alcohol, as follows: 

 Sudan: Khartoum (Heller, Loring). 



DIPODILLUS DIMINUTUS DoUman. 



1911. Dipodillus diminutus Dollman, Ann. and Mag. Nat. Hist., ser. 8, vol. 7, p.. 

 520. May. (Nyama Nyango, Northern Guaso Nyiro, British East. 

 Africa; type in British Museum.) 



Specimen. — One, from — 



British East Africa: Kurseine, Northern Guaso Nyiro (Heller). 



1 Arm. and Mag. Nat. Hist., ser. 8, vol. 14, p. 488. December, 1914. 



2 Mon. -ber. Akad. Berlin, 1878, p. 201. 



