Rheomys underwoodi Thomas 1906
Rheomys underwoodi Thomas 1906, Ann. Mag. Nat. Hist., ser. 7, 17: 422.
Type Locality: Costa Rica, Cartago Prov., near Tres Ríos.
Vernacular Names: Underwood's Ichthyomyine.
Distribution: Highlands of C Costa Rica and W Panamá.
Conservation: IUCN – Lower Risk (lc).
Discussion: Closely related to R. mexicanus (Voss, 1988) .