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Celis, L.V., Feijoo, A. and Rangel-Ch., O. 2018.

Two new earthworm species (Oligochaeta: Annelida) of the Orinoquia region of Colombia

. Zootaxa. 4496, 1 (Oct. 2018), 440–447. DOI:https://doi.org/10.11646/zootaxa.4496.1.33.