Vol. XVII 
1900 
Ripeway, Mew Species of American Birds. 27 
NEW SPECIES, ETC., OF AMERICAN BIRDS.— V. COR- 
VID. — (Concluded.) 
BY ROBERT RIDGWAY. 
Curator of the Division of Birds, U. S. National Museum. 
(By permission of the Secretary of the Smithsonian Institution). 
Xanthoura yncas galeata, subsp. nov. HELMETED INCA Jay. 
Similar to X. yacas but larger, and with the erect nasal plumes greatly 
developed, forming a very conspicuous prefrontal crest; wing averaging 
5.00, tail, 6.19, bill from nostril 0.71, tarsus 1.55, middle toe 0.95.! 
Western Colombia. (Type, No. 81879, U. S. Nat. Mus., Colombia.7) 
This very easily recognized form has been confounded with 
both P. yncas and P. y. cyanodorsalis. It certainly intergrades 
with the last, as it probably does with the former also, though 
specimens are wanting from the district necessary to show 
whether this is the case or not. P. y. cyanodorsalis agrees with 
the present form in the conspicuous frontal crest, but differs in 
having the hindneck, occiput, and more or less of the crown bright 
blue, the back also being often strongly washed with blue. 
Xanthoura yncas cyanodorsalis (Dubois). — This form, 
although most of the specimens seen, like a majority of those 
of the preceding, are labelled ‘“‘ Bogota,” apparently belongs to 
the more eastern mountain ranges of Colombia, extending thence 
into western Venezuela as far as Merida, from which locality the 
National Museum possesses a specimen. 
1 Five adults; eleven adults of X. yzcas, from Ecuador, Peru, and Bolivia, 
average as follows: wing, 4.86, tail, 5.79, bill from nostril 0.65, tarsus, 1.52, 
middle toe 0.92. Specimens from Peru, however, average decidedly larger 
than those from Ecuador or Bolivia, but they have the nasal plumes equally 
short and inconspicuous. 
2 The type specimen, with others, was part of a collection containing exam- 
ples of Cyanolyca armillata quindiuna, and therefore undoubtedly came 
from the same portion of Colombia as that inhabited by the latter. 
