Description: English: Location taken: Smithsonian National Museum of Natural History. Names: Hoplomys gymnurus (Thomas, 1897), Armored Rat, Armoured Rat, Guira, Rata Èspinos Classification: Animalia > Chordata > Mammalia > Rodentia > Echimyidae > Hoplomys > Hoplomys gymnurus. Date: 12 November 2005. Source: source: David Stang. First published at ZipcodeZoo.com. Author: Photo by David J. Stang.