THE BOOK OF ANTELOPES. BY PHILIP LUTLEY SCLATER, M.A., Ph.D., F.R.S., SECRETARY TO THE ZOOLOGICAL SOCIETY OF LONDON, AND OLDFIELD THOMAS, F.Z.S., F.R.G.S., ASSISTANT IN THE ZOOLOGICAL DEPARTMENT OF THE BRITISH MUSEUM. [Illustration] IN FOUR VOLUMES (1894–1900). VOL. IV. LONDON: R. H. PORTER, 7 PRINCES STREET, CAVENDISH SQUARE, W. 1899–1900. [Illustration: ALERE FLAMMAM.] PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. CONTENTS. VOL. IV. Page Subfamily VI. HIPPOTRAGINÆ 1 Genus I. Hippotragus 3 110. The Blue-buck. _Hippotragus leucophœus_ (Pall.). [Plate LXXVI.] 5 111. The Roan Antelope. _H. equinus_ (Desm.). [Plates LXXVII. & LXXVIII.] 13 112. The Sable Antelope. _H. niger_ (Harr.). [Plates LXXIX. & LXXX.] 31 Genus II. Oryx 41 113. The Leucoryx. _Oryx leucoryx_ (Licht.). [Plate LXXXI.] 43 114. The Beatrix Antelope. _O. beatrix_, Gray. [Plate LXXXII.] 51 115. The Gemsbok. _O. gazella_ (Linn.). [Plate LXXXIII.] 57 116. The Beisa. _O. beisa_ (Rüpp.). [Plate LXXXIV.] 65 117. The Tufted Beisa. _O. callotis_, Thomas. [Plate LXXXV.] 73 Genus III. Addax 77 118. The Addax. _Addax naso-maculatus_ (Blainv.). [Plate LXXXVI.] 79 Subfamily VII. TRAGELAPHINÆ 89 Genus I. Boselaphus 91 119. The Nilgai. _Boselaphus tragocamelus_ (Pallas). [Plate LXXXVII.] 93 Genus II. Tragelaphus 103 120. The Decula Antelope. _Tragelaphus decula_ (Rüpp.). [Plate LXXXVIII.] 105 121. The Harnessed Antelope. _T. scriptus_ (Pallas). [Plate LXXXIX.] 109 122. The Cape Bushbuck. _T. sylvaticus_ (Sparrm.). [Plate XC. fig. 2.] 117 123. Cumming’s Bushbuck. _T. roualeyni_ (Cumming). [Plate XC. fig. 1.] 123 124. Delamere’s Bushbuck. _T. delamerei_, Pocock 129 125. The Broad-horned Antelope. _T. eurycerus_ (Ogilby). [Plate XCI.] 131