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f e There are five well-marked species o f this genus, each o f which appears to inhabit a
different region, n am e ly :—
a. Sp. v e n tre tran s fa s c ia to : ro s tro nig ric an te .
1. X alhicollis (Vieill.) o f S. E. Brazil.
2. X . promeropirhynchus (L e s s .) o f N ew Gran ad a , E cuador, P e ru a n d Bolivia.
b. Sp. v e n tre co n co lo ro : ro s tro albicante.
3. X . procerus, Cab. e t H e in , o f Venezuela.
4. X . emiyrans, Sel. e t Salv. o f Mexico a n d Guatemala.
5. X . major (Vieill.) o f P a rag u a y a n d Bolivia.
For the synonymy o f these birds we refer our readers to Sclater’s American Catalogue.
Dendrocolaptes peiroti, o f Lafi-esnaye, which has been hitherto placed In tliis genus, is very
aberrant in the shape o f its bill, and may, we now think, be better arranged along with
Dendrocolaptes temmincki, Lafr., in the genus Dendrexetastes, Eyton.
D ecembe e, 1867.
