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- proper n. A taxonomic genus within the family Thraupidae.
Sorry, no etymologies found.
The beak of the sub-group Certhidea, is shown in Fig. 4.
The most curious fact is the perfect gradation in the size of the beaks in the different species of Geospiza, from one as large as that of a hawfinch to that of a chaffinch, and (if Mr. Gould is right in including his sub-group, Certhidea, in the main group) even to that of a warbler.
Remarks upon the Habits of the Genera Geospiza, Camarhynchus, Cactornis, and Certhidea of Gould.