SPECIES OF MAMMALIA. 



above, white beneath, this colour darkening with age to 

 nearly black, having part of the neck and thigh only ful- 

 vous; a white streak in younger animals runs along the 

 side, in very old a black streak lower down on the flank ; 

 female hornless, paler in colour ; tufts on knees. 



A. Cervicapra, Auctorum. Antilope, Buff. Antilope, 

 des Indes Desmar. 'Ena, of the Sanscrit. Sasi or Sasin 0/ 

 the Modern Hindoos. 



Icon. Buff. Schreber. Nobis in all states. 



Habitat. India. 



Var? An old male larger in size than the former, more 

 robust in structure; horns eighteen inches long, very stout, 

 spiral, with nine or ten semi-annuli close together at the 

 base, fourteen to fifteen complete rings above, dark-brown 

 tips, short; general colour deep rufous tawny; white spot 

 round the eyes, on the cheek or throat, and beneath white ; 

 female nearly the same ; a young male pale tav/ny, with 

 darkish streak; the horns earthy brown. 



Icon. Nobis male, female, and young. 



Habitat. South-western Morocco ? 



Sub-genus VI. — Redunca. Horns in the males only, 

 placed behind the orbits, black, reclining, tips be?iding for- 

 wards, annulated below, above smooth, short, slender ; ears 

 long, open, oval ; imperfect suborbital opening; a synall muz- 

 zle ; inguinal pores ; no tufts on knees ; tail not longer than 

 the buttocks ; fur rather lo7ig, wavy ; structure in general 

 more robust; legs shorter; mammcs four ; not gregarious; 

 residing variously. Africa. 



832. 25. A. Eleotragus (the Rictbock.) Adult male 

 two feet ten inches high at the shoulder, four feet six or 

 eight inches long ; ears six inches ; tail nine or ten inches ; 

 horns ten or twelve inches long, recumbent below the plane 

 of the face, divergent, regularly curved with the points 

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