EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. 49 
KOIROPOTAMUS KOIROPOTAMUS KENI (Lénnberg). 
1910. Potamocherus chwropotamus demonis Roosevevr, African Game Trails, 
Amer. ed., p. 475; London ed., p. 486. (Part.) 
1912. Potamocherus cheropotamus kenix LONNBERG, Ann, and Mag. Nat. Hist., 
ser. 8, vol. 9, p. 66. January. (Forests near Nairobi, British East 
Africa; type in R. Nat. Hist. Mus., Stockholm. ) 
1914, Potamocherus koiropoiamus demonis Roosevett AND, HELLER, Life-Hist. 
African Game Anim., vol. 1, p. 273. (Part.) 
Specimens.—Two, from localities as follows: 
Brirtsu East Arrica: Mau, 1 skull (Mearns); Ngong Hills, near 
Nairobi, 1, skin, skull, and leg bones (Heller). 
The skin of the adult male from Ngong Hills is largely black, with 
only faint indications of reddish coloration and with considerable 
admixture of whitish over the entire body. The skull, which has 
m® much worn, measures as follows: Occipitonasal length, 350; 
parietal width, 30; greatest width lambdoid crest, 76; zygomatic 
width, 170; width postorbital processes, 103; interorbital width, 73; 
width of palate at m?, 26.5; upper tooth row, 124; length of m%, 34. 
KOIROPOTAMUS HASSAMA (Heuglin). 
1863. Nyctochoerus hassama HeucGutn, Noy. Act. Acad. Caes. Leop.-Carol., vol. 30, 
Nachtrag zweiten Abhandl., p. 7. (Hawash Valley, Abyssinia; type in 
Senckenberg Museum, Frankfort-on-the-Main. ) 
1914. Potamocherus koiropotamus hassama RooseveEtt AND HELLER, Life-Hist. 
African Game Anim., vol. 1, p. 275. 
Specimen.—One, from— 
British East Arrica: Mount Lololokwi, 1 (Heller). 
An interesting account of the collecting of this bush pig is given in 
Heller’s account of his trip to Mount Lololokwi.' In another sccount ? 
he writes as follows: 
Only a single specimen of this pig has been available for examination. This one is 
au old boar collected by the Rainey expedition on Lololokui, a table-topped mountain 
situated north of the Northern Guaso Nyiro River. The skull of this specimen shows 
the short character of the bony process above the canine well, and is in general shape 
quite identical to the figures of Heuglin’s specimen. The flesh measurements of this 
specimen were: head and body, 47 inches; tail, 16 inches; hind foot, 9} inches; ear, 
7 inches. Greatest skull length, 12 inches. These measurements, compared to 
those of an adult boar of the East African race, show less body size, greater length of 
tail and ears, and shorter feet. The specimen here described was one of a herd of 
fifteen met with on the broad summit of Mount Lololokui, at an altitude of six thousand 
feet. The herd came nightly to the springs to drink and were occasionally seen in the 
daytime, the mountain being quite without human inhabitants. The stomach of this 
specimen contained the remains of the white, bulb-like roots of the Sansevieria plants 
which grew abundantly in patches on the slopes of the mountain and resembled 
closely in habit the smaller yuccas or Spanish daggers of Arizona or California. 
The skin of this adult male is black, mixed with brown from 
withers to the lower back, with white head and a prominent white 
1 Mount Lololokwi the Unknown, Harper’s Mag., vol. 140, pp. 155-156. January, 1920. 
3 Roosevelt and Heller. Life-Histories of African Game Animals, vol. 1, pp. 275-276. 1914. 
