They were split based mainly on the work by Stiles (1996), but the taxa east (americana group and murallae) and west (corvina group) of the Andes had actually been considered separate species until they were merged into a single species by Meyer de Schauensee in 1952.
Russ Meyer | Meyer Lansky | Meyer Schapiro | Joyce Meyer | Roelf Meyer | Urban Meyer | Nicholas Meyer | Stephenie Meyer | Paul Meyer | Egon Meyer | Russ Meyer's | Meyer Lutz | Johannes Meyer | Eric Meyer | Eric A. Meyer | Christopher Meyer | Stephen C. Meyer | Sabine Meyer | Philipp Meyer | Eve Meyer | Conrad Ferdinand Meyer | Breckin Meyer | Yves Meyer | Werner Meyer-Eppler | Paul Meyer (clarinetist) | Meyer Werft | Meyer Corporation | Meyer Berger | Marvin Meyer | Krzysztof Meyer |
The material labelled as paratypes was collected by Rodolphe Meyer de Schauensee in 1936, by M. Harmand in 1883, and by Marie Firmin Bocourt in 1862.