Echimyidae Gray, 1825
Mesomys didelphoides (Desmarest, 1817)
Mesomys hispidus (Desmarest, 1817)
Mesomys leniceps Thomas, 1926
Mesomys obscurus (Wagner, 1840)
Mesomys occultus Patton, da Silva & Malcolm, 2000
Mesomys stimulax Thomas, 1911
