Irenomys tarsalis (Philippi, 1900) . Ann. Mus. Nac. Chile Zool., 14: 10.

TYPE LOCALITY: Chile, Valdivia Prov., Fundo San Juan, near La Union .

DISTRIBUTION: C and S Chile, including Chiloe and Guaitecas Islands, and adjacent Argentina (Neuquen Prov.).

SYNONYMS: longicaudatus .