Lariscus obscurus (Miller, 1903) . Smithson. Mise. Coll., 45:23.

TYPE LOCALITY: Indonesia, Mentawi Isis, "South Pagi Island, Sumatra " .

DISTRIBUTION: Siberut Isl and S Pagi Isl (Sumatra, Indonesia).

SYNONYMS: auroreus Sody, 1949; siberu Chasen and Kloss, 1927.

COMMENTS: Formerly included in insignis (Chasen, 1940) or niobe (Chasen and Kloss (1927). Part of the rodent fauna endemic to the Mentawi Archipelago (see comments under Leopoldamys siporanus).