Scolomys ucayalensis Pacheco, 1991 . Pubi. Mus. Hist, nat, Ser. A Zool., Univ. Nac. Mayor de San Marcos, 37:1.

TYPE LOCALITY: Peru, Loreto Dept., 2.8 km E Jenaro Herrera, right bank of Ucayali River, 135 m; 79°39'W, 04°52'S .

DISTRIBUTION: Known only from the type locality.

COMMENTS: Known only by two specimens recovered from dense undergrowth in disturbed lowland rain forest.