1917.] 



Chapman, Distribution of Bird-life in Colombia. 



117 



List of Species or REPBESENTATrvE Forms Found in the Tropical Zone 



op sotttheastern colombia and eastern ecttadob and western 



Colombia and Northwestern Ectiador, the Ranges op 



Which, Separated by the Andes, are not Known 



TO BE Connected.^ 



Eastern or Amazonian 



Leptotila ruf axilla pallidipeotus 

 Osculatia sapphirina 

 Pyrrhura melanura melanura 

 Electron platyrhynchus pyrrholsemus 

 Curucujus melanurus melanurus 

 Selinidera reinwardti 

 Mioromonacha lanceolata 

 Thamnistes sequatorialis 

 Microrhopias quixensis 

 Microbates collaris 

 Hylopezus dives f ulviventris 

 Hyloctistes subulatus subulatus 

 Dendrocolaptes sancti-thomse radiolatus 



Myiotriocus phcEnicurus 

 Hapalocercus meloryphus ^ 

 Cnipodectes subbrurmeus minor 

 Chloropipo holochlora holochlora 



Manacus manacus interior 



Cephalopterus ornatus 

 Leucolepis salvini 

 Sporophila aurita murallse 

 Arremonops conirostris conirostris 

 Tanagra schranki 

 Cacicus cela 



Western or Pacific 



Leptotila rufaxiUa dubusi 

 Osculatia purpurata 

 Pyrrhura melanura paoifica 

 Electron platyrhynchus platyrhynchus 

 Curucujus melanurus melanurus 

 Selinidera speotabilis 

 Micromonacha lanceolata 

 Thamnistes anabatinus intermedius 

 Microrhopias bouoardi oonsobrina 

 Microbates cinereiventris cLnereiventris 

 Hylopezus dives barbacoEe 

 Hyloctistes subulatus assimilis 

 Dendrocolaptes sancti-thomse sancti- 

 thomse 

 Myiotricous ornatus steUatus 

 Hapalocercus meloryphus 

 Cnipodectes subbrunneus subbrunneus 

 Chloropipo holochlora Utse 

 Manacus manacus bangsi 



" " melanochlamys 



Cephalopterus penduliger 

 Leucolepis phaeooephalus phseocephalus 

 Sporophila aurita ophthalmica 

 Arremonops conirostris chrysoma 

 Tanagra florida auriceps 

 Cacicus flavicrissus 



The Cauca-Magdalena Fauna. — The f aunal area to which I would apply 

 the name Cauca-Magdalena embraces that part of the Tropical Zone which 

 is drained by the Cauca and Magdalena River systems from their soiu-ce 

 northward to the arid coastal region, or Caribbean Fauna. 



It is divisible into arid and humid sections. The former embraces the 

 entire Cauca Valley and extends northward into Antioquia nearly to the 

 upper limits of navigation on the lower Cauca, and also the upper Magda- 



i In a future paper on the distribution of bird-life in Ecuador it is proposed to treat more fully of 

 the origin of the avifauna of the Tropical Zone of the Pacific Coast. In this connection I present only 

 some of the more striking instances of Tropical species common to both the Pacific Coast and eastern 

 Ecuador and Colombia, whose range appears to be separated by the Andes. 



2 S. W. Ecuador, Magdalena Valley, and Amazonia, but unknown on Pacific-Colombian coast. 



