Thom·son's gazelle 
(tŏmsənz)
(tŏmsənz)n.
A small gazelle (Eudorcas thomsonii) of eastern Africa, having a broad black stripe on each side of the body and long, ridged horns in the male.
[After Joseph Thomson (1858-1895), Scottish geologist and explorer.]
Thomson's gazellemale Thomson's gazelle
Eudorcas thomsonii