REMARKS ON DENDROCOLAPTINiE 
simpliciceps, Rich, et Lafres. 
perrottii , Lafres. 
devilii, 0. des Murs. 
lineatocephalus , G. R. Gray. 
albicollis , Vcill. 
major , Veill. 
Dendrocolaptes crassirostris , Such. — is a synonym of D. albicollis. j 
PICOLAPTES, Less. 
Bill of the same form as in Dendrocolaptes , but not so strong and 
smaller ; birds of small size ; third quill the longest. 
tenuirostris , Spix. 
angustirostris , Veill. 
bivittatus, Licht. 
squamatus , Licht. 
triangularis , Lafres. 
fuscus , Veill. 
albolineatus, Lafres. 
souleyetii , Lafres. 
affinis, Lafres. 
lacrymiger , Lafres. 
notatus , Nob. 
validirostris, Nob. 
atrijpes , Nob. 
Mons. Lefresnaye also includes in Picolaptes , Xiphorynchus leu - ; 
cogaster, Swainson. The descriptions however given of that species, 
and Xiphorynchus flavig aster, in the birds of Mexico, are so short, 
that I am unable to make out to what birds they refer. P. leuco- 
gaster is somewhat like my atripes , but differs considerably in the 
length of the bill. 
XIPHORHYNCHUS, Swain. 
Bill very long, much arcuated, slender >. and laterally compressed, 
third, fourth, and fifth quill-feathers of equal length. 
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