Proechimys semispinosus (Tomes, 1860) . Proc. Zool. Soc. Lond., 1860:265.

TYPE LOCALITY: Ecuador, Santiago-Zamora Prov., Gualaquiza .

DISTRIBUTION: S.E. Honduras to N.E. Peru and Amazonian Brazil.

COMMENT: Formerly included amphichoricus; see Reig et al., 1980:291-312, in Voronstov and Van Brink, eds., Animal genetics and evolution, Junk, The Hague, who also employed the name centralis for animals assigned to semispinosus from N. Venezuela.

ISIS NUMBER: 5301410029011011001.