Cobus unctuosus = Kobus ellipsiprymnus unctuosus (Sing-sing waterbuck) The Sing-sing
COBUS UNCTUOSUS
Source book page: https://archive.org/stream/bookofantelopes22scla/bookofantelopes22scla#page/n131/mode/1up
Title: The book of antelopes
Year: 1894 (1890s)
Authors: Philip Lutley Sclater, 1829-1913; Oldfield Thomas, 1858-1929; Joseph Wolf, 1820-1899, ill Alpheus F. Williams, former owner. DSI National Zoological Park (U.S.), former owner. DSI Russell E. Train Africana Collection (Smithsonian Institution. Libraries) DSI
Author Philip Sclater
Source: https://commons.wikimedia.org/wiki/File%3AThe_book_of_antelopes_%281894%29_%2814770552664%29.jpg
The waterbuck (Kobus ellipsiprymnus) is a large antelope found widely in sub-Saharan Africa. Kobus ellipsiprymnus is placed in the family Bovidae. In this sexually dimorphic antelope, male waterbucks are taller and heavier than females. The long, spiral horns, present only on males, curve backward, then forward. Kobus ellipsiprymnus acquired the vernacular name "waterbuck" due to its heavy dependence on water as compared to other antelopes and its ability to enter into water for defence.
Order: Artiodactyla
Family: Bovidae
Genus: Kobus
Species: Kobus ellipsiprymnus (Ogilby, 1833)