_Oryx gazella_, =Jent.= Cat. Ost. Leyd. Mus. (Mus. Pays-Bas, ix.) p. 135 (1887); =id.= Cat. Mamm. Leyd. Mus. (op. cit. xi.) p. 166 (1892); =Matsch.= SB. Ges. nat. Fr. 1893, p. 104; =Pousargues=, Ann. Sci. Nat. (7) iv. p. 131 (1896); =Trouessart=, Cat. Mamm. fasc. iv. p. 954 (1898). _Cemas algazel_, =Oken=, Lehrb. Nat. iii. pt. 2, p. 741 (1816) (part.). _Antilope algazella_, =Rüpp.= N. Wirb. Abyss. p. 26 (1835). _Antilope tao_, =H. Sm.= Griff. An. K. iv. p. 189, v. p. 327 (1827); =A. Sm.= S. Afr. Quart. Journ. ii. p. 187 (1834); =Schinz=, Syn. Mamm. ii. p. 425 (1845). _Antilope leucoryx_, Licht. Darst. Säug. pl. i. (1827) (nec Pall.); =Hempr. & Ehr.= Symb. Phys. Decas ii. pl. iii. (1828) (Dongola); =Fisch.= Syn. Mamm. p. 478 (1829); =Waterh.= Cat. Mamm. Mus. Z. S. (2) p. 41 (1838); =Oken=, Allg. Naturg. vii. p. 1394 (1838); =Laurill.= Dict. Univ. d’H. N. i. p. 618 (1841); =Reichenb.= Säug. iii. p. 120, pl. xxxvii. (1845); =Schinz=, Syn. Mamm. ii. p. 434 (1845); =id.= Mon. Antil. p. 32, pl. xxxvi. (1848). _Oryx leucoryx_, =Sund.= K. Vet.-Ak. Handl. 1842, p. 201 (1843); =Gray=, List Mamm. B. M. p. 156 (1843); =id.= Ann. Mag. N. H. (1) xviii. p. 232 (1846); =Sund.= Pecora, K. Vet.-Ak. Handl. 1844, p. 206 (form α et γ) (1846); =id.= Hornschuch’s Transl., Arch. Skand. Beitr. ii. p. 157; Reprint, p. 81 (1848); =Gray=, P. Z. S. 1850, p. 134; =id.= Knowsl. Men. p. 17 (1850); =id.= Cat. Ung. B. M. p. 107 (1852); =Barth=, Reise, i. p. 589 (1850) (Asben, Centr. Afr.); =Scl.= P. Z. S. 1863, p. 230 (gestation, 8 mths.); =Fitz.= SB. Wien, lix. pt. 1, p. 177 (1869); =Gray=, Cat. Rum. B. M. p. 36 (1872); =id.= Hand-1. Rum. B. M. p. 104 (1873); =Sclater=, P. Z. S. 1873, p. 604; =Brehm=, Thierl. iii. p. 231 (1880); =Sclater=, in Wolf’s Zool. Sketches, i. pl. xxiii. (1861), ii. pl. xix. (1868); =id.= List Anim. Z. S. (8) p. 138 (1883), (9) p. 158 (1896); =Flow. & Gars.= Cat. Coll. Surg. ii. p. 261 (1884); =Jent.= Cat. Ost. Leyd. Mus. (Mus. Pays-Bas, ix.) p. 135 (1887); =W. Sclater=, Cat. Mamm. Calc. Mus. ii. p. 156 (1891); =Flow. & Lyd.= Mamm. p. 344 (1891); =Ward=, Horn Meas. (1) p. 148 (1892), (2) p. 188 (1896); =Mockler-Ferryman=, Up the Niger, p. 50 (1892) (Lokoja, Niger); =Jent.= Cat. Mamm. Leyd. Mus. (Mus. Pays-Bas, xi.) p. 166 (1892); =Lyd.= Horns and Hoofs, p. 249 (1893); =Matsch.= SB. nat. Freund. 1893, p. 104; =Pousargues=, Ann. Sci. Nat. (7) iv. p. 131 (1896); =Johnston=, P. Z. S. 1898, p. 352; =Trouessart=, Cat. Mamm. fasc. iv. p. 955 (1898). _Antilope ensicornis_, =Hempr. et Ehr.= Symb. Phys. i. p. i (sub _Ant. leucoryge_) (1832); =Wagner=, Schr. Säug. Suppl. iv. p. 479 (1844), v. p. 437 (1855) (var. β _nubica_ and var. γ _senegalensis_). _Oryx ensicornis_, =Heugl.= Ant. u. Buff. N.O.-Afr. (N. Act. Leop. xxx. pt. 2) p. 17 (1863); =id.= N.O.-Afr. ii. p. 113 (1877).