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- Publications
- Influence
Critical notes on the types of little-known species of neotropical birds. Part II. By C.E. Hellmayr.
- C. E. Hellmayr
- Biology
Studien über wenig bekannte Typen neotropischer Vögel
- H. V. Berlepsch, C. E. Hellmayr
- Biology
- Journal für Ornithologie
- 2005
On heterogynism in formicarian Birds
- C. E. Hellmayr
- Biology
- Journal für Ornithologie
- 1 December 1929
It has been known for some time that in certain genera of Formicariidae the females of nearly allied forms present well-marked characters, whereas the males are not or barely distinguishable from one… Expand