BLACK-HEADED TODY. 177 
first joint free ; bill black, the base beneath being 
pale. Inhabits Brazil and Cayenne. 
Total length, 3f inches ; bill, front, 1 % ; wings, 
; tail, base, 1 ^ ; tarsus, tV 
GREAT-HEADED TODY. 
Todus Megacephalus, Swains. 
PLATE XIX. 
Above olive-green ; beneath yellow ; neck above, and stripes 
on the throat, cinereous ; sides of the head pale, with a 
black crescent on the ears ; bill short, triangular. 
We have here a genuine, although an aberrant 
Tody, disguised with the bill of a Lepturus, or that 
sub-genus which next succeeds in the chain of 
nature. Except in this particular organ, it has the 
general structure of the Todies. The feet, indeed, 
are particularly weak, and both , the lateral toes are 
united to the middle one as far as the first joint ; 
the head, as the specific name expresses, is particu- 
larly large. 
The natural size is represented in the figure ; the 
general plumage above is olive-green, with a strong 
fulvous tinge in front of the head and on the crown. 
M 
