 Only males possess horns ; the thin , straight horns , 8 – 18 centimetres ( 3 @.@ 1 – 7 @.@ 1 in ) long , are smooth at the tips and ringed at the base . The maximum horn length , 19 @.@ 1 centimetres ( 7 @.@ 5 in ) , was recorded in 1998 from Malawi . The oribi has at least six different , well @-@ developed scent glands ( such as the prominent <unk> glands near the eyes ) . The body has several modifications , such as the large <unk> below the eyes , to accommodate such a large number of glands . Females have four <unk> . 
