Hydromys neobrittanicus Tate and Archbold, 1935 . Am. Mus. Novit., 803:8.

TYPE LOCALITY: Bismarck Archipelago, New Britain Isl, Wide Bay, Balayang, Bainings .

DISTRIBUTION: Known only from New Britain Isl.

COMMENTS: Included in H. chrysogaster by Ziegler (1982b:883), but it was recognized as a New Britain endemic by Flannery and White (1991) and should retain this status until the significance of its diagnostic traits can be assessed in a systematic revision of the large-bodied forms of Hydromys, as Tate (1951:236) already noted.