Museums of the United States. 315 



S. enano, therefore, if a valid species, which I somewhat doubt, 

 must stand alone, and S. maccaUi become a synonym of S. 

 trichopsis. 



Collection of Mr. George N. Lawrence, New York. 



Mr. Lawrence, in showing me his extensive collection of 

 Central and South American birds, most kindly allowed me 

 carefully to examine the types of the species described by him 

 in his various papers. With reference to some of these species 

 I made the following notes and identifications. 



BuARREMON ocAi, LawT. Ann. Lye. N, Y. viii. p. 126 

 (1865). 



This is undoubtedly Pipilo torquatus, Du Bus (Bull. Ac. 

 Brux. xiv. pt. 2. p. 105, et Esq. Ornith. t. 36, 1851), Cha- 

 mceospiza torquata, Scl. (P. Z. S. 1858, p. 304). Specimens 

 of Pyrgisoma leucote were formerly called Chameeospiza tor- 

 quata by me, and thus named were sent to the Smithsonian 

 Institution. This error was long ago corrected (Ibis, 

 1866, p. 205), but appears to have misled Mr. Lawrence when 

 redescribing C. torquata, my correction having been over- 

 looked. 



Serpophaga grisea, LawT. Ann. Lye. N. H. x. p. 139. 



I have now seen several specimens, including some from 

 Costa Rica, of this Serpophaga, and cannot distinguish it from 

 the South-American S. cinerea. The crown has a concealed 

 white crest, and the wing-coverts have white tips, in the Cen- 

 tral-, just as in the South- American bird. 



Elainea macilvaini, Lawr. Ann. Lye. N. Y. x. p. 10 (1871). 



Mr. Lawrence kindly allowed me to take his type of this 

 species to England for comparison. I find we have a speci- 

 men exactly agreeing with it from Panama ; and this is the bird 

 referred by us (Nomencl. p. 48) to Swainson's Tyrannula 

 caniceps (Orn. Dr. t. 49) ; nor do I see, on again examining 

 the plate, reason for altering this determination. The bird 

 Mr. Sclater formerly called by Swainson^s name (Cat. p. 217) 

 we now consider to belong to Von Pelzeln's E. elegans. 



