Taxonomic diversity of Cebuella in the western Amazon: Molecular, morphological and pelage diversity of museum and free-ranging specimens.

These analyses indicate that the two recognized subspecies of pygmy marmoset should be elevated to the species level (C. pygmaea and C. niveiventris) based on molecular and cranial differences but not on pelage patterns. We provide evidence on the geographic limits of the two clades and identify regions where additional sampling is required to better define the geographic distribution of the two clades.