1917.] 



Chapman, Distribution of Bird-life in Colombia. 



151 



Chamaeza turdina ^ 

 Grallaria hypoleuea ' 

 Grallaricula nana ^ 

 Lochmias sororia ^ 

 Siptornis antisiensis ^ 

 " striaticoUis ' 

 Xenicopsis subalaris mentalis i 

 Platytriocus flavigularis ' 

 Pseudotriccus pelzelni pelzelni 

 Hapalocercus acutipennis ^ 

 Leptopogon erythrops 

 Phyllomyias griseiceps griseiceps 

 Acrochordopus zeledoni 

 Elsenia pudica pudica * 

 Conopias cinchoneti ' 

 Hirundinea selateri 

 Pipra leucocilla coracina 



" isidorei isidorei 

 Piprites tschudi ^ 

 Masius chrysopterus ' 

 Lathria fuscocinerea fuscocinerea '' 



" cryptolopha 

 Rupicola peruviana aurea ^ 

 Euchlornis riefferi riefferi ' 



" aureipeotus ^ 



Pyroderus scutatus granadensis '■ 

 Pheugopedius selateri ^ 



" mystacalis amaurogaster 



Planesticus serranus 

 " leucops 1 



Catharus birchalli ' 



" dryas ' 

 Basileuterus cinereicollis cinereiooUis 

 Sporophila luctuosa ^ 

 Saltator atripennis caniceps 

 Atlapetes albifrenatus 



" semirufus 

 Chlorochrysa calliparaea bouroieri ' 

 Pipridea melanota venezuelensis 

 Tangara guttata bogotensis 

 Tangara aurulenta aurulenta i 

 " gyroloides catharinae 

 " c. caeruleocephala ' 

 " melanotis ' 

 " parzudaki ^ 

 Compsocoma somptuosa victorini ' 

 Calochetes coccineus 

 Chlorospingus albitempora nigriceps '' 

 " flavipectus 



" flavigularis flavigularis 



Hemispingus melanotis 



" superciliaris superciliaris 



Ostinops alfredi sincipitalis 



" " neglectus 



Xanthoura yncas cyanodorsalis 



The Centeal American Extension of the Subteopical Zone and the 



Panama 'Fault.' 



The range of several Subtropical Zone species extends as far north as 

 Mexico. Conspicuous among them is the Towhee-Tanager, Buarremon brun- 

 neinuchus which is found from southeastern Peru to the mountains of the 

 State of Vera Cruz, a distance of over 2500 miles, doubtless a more extensive 

 distribution than is shown by any other subtropical species. Atlapetes 

 gutiuralis, a common Colombian subtropical bird, is found as far north as 

 Guatemala, but, as a rule. South American subtropical species do not go 

 further north than Costa Rica. Here, apparently, judging from the data 

 supplied by Mr. Carriker's valuable work, they sometimes descend to lower 



1 Found also on the western slope of the Central Andes. 



2 Found also on both slopes of the Central Andes. 



