_Tragelaphus eurycerus_, =Less.= N. Tabl. R. A., Mamm. p. 181 (1842); =Wagn.= Schr. Säug., Suppl. v. p. 441 (1855); =Gray=, P. Z. S. 1850, p. 144; =id.= Knowsl. Menag. p. 27, pl. xxiii. fig. 1 (horns) (1850); =id.= Cat. Ung. B. M. p. 136 (1852); =id.= P. Z. S. 1861, p. 276; =Gerr.= Cat. Bones B. M. p. 246 (1862); =Fitz.= SB. Ak. Wien, lix. pt. 1, p. 174 (1869); =Brooke=, P. Z. S. 1871, p. 485, pl. xxxix.; =Scl.= P. Z. S. 1883, p. 35; =Thomas=, P. Z. S. 1891, p. 387; =Flow. & Lyd.= Mamm. p. 347 (1891); =Ward=, Horn Meas. p. 158 (1892); =id.= Rec. Big Game, p. 202 (1896); =Jent.= Cat. Mamm. Leyd. Mus. (Mus. Pays-Bas, xi.) p. 172 (1892); =Lyd.= Horns and Hoofs, p. 254 (1893); =id.= Royal Nat. Hist. ii. p. 275 (1894); =Pousarg.= Ann. Sci. Nat. iv. p. 81 (1897); =Trouess.= Cat. Mamm. p. 957 (1898); =Bryden=, in Ward’s Great and Small Game of Africa, p. 454, pl. xiii. fig. 3 (1899). _Euryceros euryceros_, =Gray=, Cat. Rum. B. M. p. 48 (1872); =id.= Hand-l. Rum. B. M. p. 119 (1873); =Jent.= Cat. Ost. Leyd. Mus. (Mus. Pays-Bas, ix.) p. 141 (1887); =id.= Notes Leyd. Mus. 1888, pp. 23–25; =Büttik.= Reisebilder, ii. p. 380, cum fig. (1890). _Tragelaphus albo-virgatus_, =Du Chaill.= Pr. Bost. Soc. N. H. vii. pp. 299–300 (1861); =id.= Expl. & Adv. Equat. Afr. p. 306, pl. (1861). _Tragelaphus albovittatus_, =Gray=, P. Z. S. 1861, p. 276. Vernacular Names:—_Trommé_ of the Mandingos (_Temminck_); _Elk_ of Liberians and _Guin_ of the Veys in Liberia (_Büttikofer_); _Bongo_ of Gaboon (_Du Chaillu_).