Microhydromys richardsoni Tate and Archbold, 1941 . Am. Mus. Novit., 1101:2.

TYPE LOCALITY: Indonesia, Irian Jaya, Djajawidjaja Div., Idenburg River, 4 km S.W. Bernhard Camp, 850 m .

DISTRIBUTION: C. and E. New Guinea.

COMMENT: Known from three specimens (ACZ).

ISIS NUMBER: 5301410011079001001.