Order Artiodactyla Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 637 722 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Hylochoerus Thomas 1904 Hylochoerus Thomas 1904 , Nature, 70: 577 . Type Species: Hylochoerus meinertzhageni Thomas 1904 Species and subspecies: 1 species with 3 subspecies: Species Hylochoerus meinertzhageni Thomas 1904 Subspecies Hylochoerus meinertzhageni subsp. meinertzhageni Thomas 1904 Subspecies Hylochoerus meinertzhageni subsp. rimator Thomas 1906 Subspecies Hylochoerus meinertzhageni subsp. ivoriensis Bouet and Neuville 1930