Order Perissodactyla 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 1 629 636 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Dicerorhinus Gloger 1841 Dicerorhinus Gloger 1841 , Gemein. Hand.-Hilfsbuch. Nat.: 125 . Type Species: Rhinoceros sumatrensis Fischer 1814 Synonyms: Ceratorhinus Gray 1867 ; Didermocerus Brookes 1828 . Species and subspecies: 1 species with 3 subspecies: Species Dicerorhinus sumatrensis (G. Fischer 1814) Subspecies Dicerorhinus sumatrensis subsp. sumatrensis G. Fischer 1814 Subspecies Dicerorhinus sumatrensis subsp. harrissoni Groves 1965 Subspecies Dicerorhinus sumatrensis subsp. lasiotis Buckland 1872 Discussion: Didermocerus Brookes, 1828 , has been rejected, and Dicerorhinus validated ( International Commission on Zoological Nomenclature, 1977 b ).