MAY, 1913. NEW SPECIES OF NEOTROPICAL BIRDS CORY. 285 



Length (skin), 420 mm.; wing, 142; tail, 293; bill, 28; tarsus, 34. 



This subspecies is readily distinguished from birds found in the 

 dryer country about Rio Abrore, some 70 miles further north, the latter 

 being apparently intermediate between Piaya cay ana cay ana and P. 

 cayana colombiana. 



Momotus osgoodi sp. nov. 



Type from El Guayabal (ten miles east of Cucuta), Colombia. 

 Adult male, No. 43299, Field Museum of Natural History. Collected 

 by W. H. Osgood and S. G. Jewett, March 17, 1911. 



Similar to Momotus swainsoni, but differs in having the under parts 

 darker and deeper chestnut, and absence of the bluish post occular 

 area (which is replaced by olive chestnut) and having the mantle and 

 sides of the neck strongly tinged with chestnut and rest of back olive 

 tinged with chestnut. The exposed portions of the feathers forming the 

 nuchal cincture bordering the black crown patch are plain bluish purple 

 without black tips. Color of wings, tail, and under wing coverts similar 

 to swainsoni. 



Wing, 127 mm.; tail, 167, the central feathers, 228; bill, 35; 

 tarsus, 25. 



This new species is named for Mr. W. H. Osgood, who collected the 

 type specimen. 



Scytalopus magellanicus grandis subsp. nov. 



Type from Tambo Ventija, ten miles east of Molinopampa, Peru 

 (mountains about 30 miles northeast of Chachapoyas) . Adult male, 

 No. 44390, Field Museum of Natural History. Collected by W. H. 

 Osgood and M. P. Anderson, June 19, 1912. 



Similar to Scytalopus magellanicus magellanicus, but much larger; 

 entire plumage nearly uniform plumbeous black; the feathers of the 

 crown and back slightly darker at the tips and those of the under parts 

 slightly paler at the tips, noticeable when held in the light ; bill brownish 

 black; legs (in dried skin) dark brown. 



Total length (skin), 167 mm.; wing, 78; tail, 60; bill, 15; tarsus, 30. 



This bird approaches in size nearest to S. femoralis or S. macropus, 

 but differs from either in having the plumage uniformly colored. It 

 is darker and larger than S. unicolor and decidedly larger than 5. magel- 

 lanicus magellanicus, but apparently approaches it in color, and on 

 account of lack of sufficient material for comparison I have provision- 

 ally considered it to be a large race of that species. 



