378 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 97 
Micrastur semitorquatus semitorquatus § Psilomycter theresiae leucorrhous 
Ara severa castaneifrons Trogon violaceus ramonianus 
Ciccaba huhula (previously published Galbula albirostris chalcocephala 
on the basis of the same specimen) Coryphotriccus parvus parvus 
Chordeiles rupestris Attila citriniventris 
Chaetura spinicauda aethalea Pseudattila phoenicurus 
The five birds added to the recorded Brazilian ornis are: 
Hydropsalis climacocerca schomburgki Terenura spodioptila spodioptila 
Aeronautes montivagus tatei Leptopogon superciliaris venezuelensis 
Heliodoxa xanthogonys 
In addition to these, the present collection serves to extend, or to 
fill gaps in, the previously known ranges of some 30 or more other 
birds among which may be mentioned: 
Tinamus major zuliensis Todirosirum pictum 
Crypturellus noctivagus duidae Colopteryx galeatus 
Accipiter pectoralis Elaenia ruficeps 
Leucopternis melanops Perissocephalus tricolor 
Porzana flaviventer flaviventer Xenopipo atronitens 
Thalurania furcata nigrofasciata Schiffornis major duidae 
Jacamerops aurea ridgwayi Microcerculus bambla caurensis 
Myrmotherula ambigua Turdus ignobilis arthuri 
Myrmotherula cherriet Hylophilus muscicapinus muscicapinus 
Myrmotherula guitata Piranga flava haemalea 
Gymnopithys rufigula rufigula Tachyphonus phoeniceus 
Xiphorhynchus pardalotus Caryothraustes canadensis canadensis 
Xenops tenuirostris acutirostris Pitylus grossus grossus 
Microzenops milleri 
In working out the various problems raised by the different species 
in the collection, I have been fortunate in the loan of pertinent material 
from the American Museum of Natural History, the Museum of 
Comparative Zoology, the Carnegie Museum, and the Academy of 
Natural Sciences- of Philadelphia. J am especially indebted to Dr. 
John T. Zimmer for aid in identifying a few obscure plumages and for 
his opinion on a number of other items. Some time before I began 
to study this collection, Dr. Alexander Wetmore made a number of 
identifications in connection with other studies he was pursuing; 
these he has generously placed at my disposal. In some instances he 
had examined long series in other museums, and his comments, which 
have been retained in the present paper, are appreciated accordingly. 
A number of years ago M. A. Carriker, Jr., worked over the Tyran- 
nidae in the collection, but subsequently published papers on these 
difficult birds have made it necessary to go over them anew. After 
this report had been completed a few of the forms involved were 
reexamined together with W. H. Phelps, whose comments have been 
used to modify earlier wordings. 
The National Museum is indebted to the National Geographic 
Society for the present splendid collection, which has greatly enriched 
