110 BULLETIN 99, UNITED STATES NATIONAL MUSEUM. 
alone by the distinctive coloration but also by the great horns, which 
are peculiar to the old males. It does not seem possible, therefore, 
rightly to dispose of megaceros as a nomen nudum. 
Genus ADENOTA Gray. 
1847. Adenota Gray, List Osteol. Spec. Brit. Mus., p. 146. (A. kob.) 
The kob, in eastern central Africa, is largely confined to the water- 
shed of the great lakes and the Nile, where numerous specimens were 
collected by the first Smithsonian African expedition. 
ADENOTA KOB LEUCOTIS (Peters). 
1854. Antilope leucotis Peters, Ber. Kénigl. Akad. Wiss. Berlin, 1853, p. 164. 
(Sobat River, Sudan; type in Berlin Museum.) 
1910. Kobus leucotis RoosrEvett, African Game Trails, Amer. ed., p. 475; Lon- 
don ed., p. 487. 
1914. Adenota kob leucotis RoosEVELT AND HetieEr, Life-Hist. African Game 
Anim., vol. 2, p. 514. (Part.) 
Specimens.—Four, as follows: 
Supan: Mouth of Bahr-el-Zeraf, 4 (T. Roosevelt, K. Roosevelt). 
Included in this series are two adult males, with last molars mod- 
erately worn, in the full black pelage; and two females in the normal 
red coat of the sex. 
The Adenota kob notata described by Rothschild! from Ahmed 
Agha, Bahr-el-Abiad, Sudan; type in the Tring Museum, must be 
very closely related to this form. 
ADENOTA KOB NIGROSCAPULATA Matschie. 
1899. Adenota nigroscapulata Matscuikz, Sitz.-ber. Ges. nat. Freunde Berlin, p. 15. 
(Bahr-el-Gebel, between 6° and 7° north, Sudan; type in Darmstadt 
Museum.) ¥ 
1906. Cobus vaughani LypEKKER, Field, vol. 108, p. 693. October 20. (Wau, 
28° 10’ E., 7.30’ N., Bahr-el-Ghazal, Sudan; type in British Museum.) 
1910. Kobus vaughani Roosrve.t, African Game Trails, Amer. ed., p. 475; 
London ed., p. 487. 
1914. Adenota kob leucotis RoosEVELT AND Hetier, Life-Hist. African Game 
Anim., vol. 2, p. 514. (Part.) 
Specimens.—F¥our, as follows: 
Supan: Lake No, Bahr-el-Ghazal, 4 (K. Roosevelt, T. Roosevelt). 
Two young males in this series, with short horns and with the last 
molars not yet erupted, are in the red coat, with dark markings on 
forelegs and shoulders and on the sides above the hind limbs. An 
adult male with fully developed horns, and with the last molar 
moderately worn, is of almost the same color. Another adult male, 
with the last molar moderately worn, has much more blackish 
mixed throughout the pelage, especially on the face, cheeks, and 
neck. 
1 Ann. and Mag. Nat. Hist., ser. 8, vol. 12, p.575. December, 1913. 
