315 
Museums of the United States. 
S. enano, therefore, if a valid species, which I somewhat doubt, 
must stand alone, and S. maccalli 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, Lawr. Ann. Lyc. 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 Ctiamceospiza 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, Lawr. Ann. Lyc. 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. Lyc. 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 Swainsofrs 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 Swainsofrs name (Cat. p. 217) 
we now consider to belong to Yon PelzehPs E. elegans. 
