EAST AFEICAir MAMMALS IN NATIONAL MUSEUM. 131 



Specimens. — Forty-seven, from localities as follows: 

 British East Africa: Loita Plains, 1 (Heller); Njoro Osolali, 1 

 (Loring); Sotik, 4 in alcohol (Heller); Southern Guaso Nyiro. River, 

 41, including 21 in alcohol (Loring, Heller, Mearns). 



Loring found one female with three fetuses, and two with five 

 fetuses each, on the Southern Guaso Nyiro, June 15. 



ARVICANTHIS ABYSSINICUS VIRESCENS HeUer. 



Plate 36. 



1914. Arvicanthis abyssinicus virescens Heller, Smithsonian Misc. Coll., vol. 63, 

 No. 7, p. 11. June 24. (Voi, British East Africa; type in U. S. Nat. 

 Mus.) 



Specimen. — One, the type: 



British East Africa: Voi (Heller). 



DoUman, in his synopsis of the forms of this group, ^ included 

 specimens from Voi with Arvicanthis abyssinicus neumanni Matschie, 

 described from Burunge, Irangi, south of Mount Bahmanjaro. Heller 

 examined the type of neumanni in the Berlin Museum, before de- 

 scribing virescens, and made the following manuscript notes on it: 



Type A 5593, c? young. Burungi, G. E. A., coll. O. Neumann; alcoholic; skull 

 removed, but not cleaned. Head and body, 93; tail, 90; hind foot, 24; ear, 15. 

 Immature, teeth not worn. Color buffy, without much annulation of darker color; 

 underparts whitish; feet and tail bufliy like sides. Skull: condyloincisive length, 

 26.5; basilar length, 22.5; zygomatic breadth, 15.0; nasals, 9.5 x 3.5; interorbital 

 width, 4.8; upper tooth row, 5.4; diastema, 7.1. 



ARVICANTHIS ABYSSINICUS CHANLERI Dollman. 



1911. Arvicanthis chanleri Dollman, Ann. and Mag. Nat. Hist., ser. 8, vol. 8, p. 

 130. July. (Chanler Falls, Northern Guaso Nyiro, British East Africa; 

 type in British Museum). 



Specimens. — Thirty-one, from the following localities: 

 British East Africa: Engare Ndare River, Northern Guaso 

 Nyiro, 1 (Heller); Mount Loiolokwi, 29, including 1 in alcohol 

 (Heller) ; North Loroghi Mountains, 1 (Percival) . 



This subspecies was trapped on Mount Loiolokwi in the upper 

 forest, near the summit, at 6000 feet altitude. It is clearly a sub- 

 species of ahyssinicus, and is rather closely related to A. a. nairobse. 

 Heller found a specimen of this animal in the stomach of a secretary- 

 bird on Mount Loiolokwi. 



ARVICANTHIS SOMALICUS REPTANS Dollman. 



1911. Arvicanthis reptans Dollman, Ann. and Mag. Nat. Hist., ser. 8, vol. 8, p. 



129. July, (Nyama Nyango, Northern Guaso Nyiro, British East 

 Africa; type in British Mus.) 



1912. Arvicanthis somalicus reptans Lonnberg, Kungl. Svenska. Vet. Akad. 



Handl., vol. 48, No. 5, p. 99. 



' Ann. and Mag. Nat. Hist., ser. 8, vol. 8, pp. 348-349. September, 1911. 



