20 THE SELOUS COLLECTION. 



The members of this genus are distinguished from the Harte- 

 beests by their shorter faces and absence of horn-pedicles, the 

 f rentals not being specially developed for this purpose as in Alce- 

 la])hus. In pygargus the height at the shoulder is about 40 inches. 

 Horns sublyrate, fine horns measure from 15 to 16| inches in 

 length. Greneral colour rufous brown, dark purplish brown on 

 fianks and upper parts of limbs, paler on shoulders and saddle. 

 Conspicuous white blaze on forehead, continued forwards as a 

 broad nose-stripe. Ears brownish buff. Base of tail and patch on 

 rump white. Lower parts of limbs white on outer sides. Belly 

 white, sharjjly marked off from brown Hanks. 



Best horn measurements (No. 19. 7. 15. 93) : — length on front 

 curve 15 ; circumference 6| ; spread from tip to tip 8|. The 

 best of the two females is No. 19. 7. 15. 97, which has the following 

 horn measurements : — length on front curve 14| ; circumference 

 5^ ; spread from tip to tip 6§. 



Typical loealit}^ Cape Colony ; the range formerly extended as 

 far north as the Orange Eiver. At the present time the species is 

 extinct in the wild state. Selous secured his specimens from one 

 of the two farms wliere the Bontebok is preserved. 



67 68 —19. 7. 15. 93-94. April, 1895. Nachtwaeht Farm, near 



Cape Agulhas, Capo Colony. 

 69 —19.7.15.95 (immature). November, 1896. Nachtwacht 



Farm, near Cajje Agnlhas, Cape Colony. 

 70-71 —19.7,15.96-97 (females). Skull and horns. Nachtwacht 



Farm, near Cape Agulhas, Caiie Colony. 



BLESBOK. 



Damaliscus albifrons. 



Antilope albifrons, Burchell, Travels in S. Africa, vol. ii. p. 335, 1824. 

 Dmnalis albifrons, Gray, Ann. Mag-. Nat. Hist. ser. 1, vol. xviii. 13. 233, 



1846; Proc. Zool. Soc. 1850, p. 141; Knowsley Menagerie, p. 22, 



pi. xxii. fig. 1, 1850; Cat. Ungulata Brit. Mus. p. 129, 1852; Cat. 



Eiiminants Brit, Mus. p 45, 1872; Hand-List Buminants Brit. Mus. 



p. 116, 1873, 

 Damaliscus albifrons, Sclater and Thomas, Book of Antelopes, vol. i. 



p. 79, pi. ix., 1895. 



Very similar to the Bontebok, distinguished by the absence of 

 the purplish-black body markings, the white forehead blaze" being 



