Rhinoceros sumatrensis = Dicerorhinus sumatrensis (Fischer, 1814)
English: Sumatran Rhinoceros from London Zoo (acquired April 1 1885, died October 26, 1888), facial myology from left lateral:
Lev.lab.s. = levator labii superioris alaeque nasi muscle, M. = masseter muscle, Orb. = orbicularis muscle, Par. = parotid gland, Plat. = platysma muscle, Zyg. = zygomaticus muscle.
Date 1889
Source Proceedings of the Zoological Society of London (vol. 1889 issue 1, page 24)
Author F.E.Beddard & F.Treves (text)
Source: https://commons.wikimedia.org/wiki/File:PZSL1889Page024.png

The Sumatran rhinoceros, hairy rhinoceros or Asian two-horned rhinoceros (Dicerorhinus sumatrensis), is a rare member of the family Rhinocerotidae. Dicerorhinus sumatrensis is only found in Sumatra and Borneo.