Lophiomys Milne-Edwards, 1867 . L'Institut, Paris, 35:46.

TYPE SPECIES: Lophiomys imhausii Milne-Edwards, 1867 .

SYNONYMS: Phractomys, Phragmomys .

COMMENTS: Closest relatives are Microlophiomys vorontsovi from late Miocene of Ukraine (Topacevski and Skorik, 1984), and Cricetops dormitor from middle Oligocene of Mongolia and Kazakhstan (Wahlert, 1984).