310 
Mr. O. Salvin's Visit to the 
lie could find no reference. The abbreviation here stands 
doubtless for the genus Empidochanes, and not for Empidonax. 
olivus is Boddaert's name for Buffon's Gobe-mouche olive 
de Cayenne (PL Enl. 574. fig. 2). Mr. Bidgway’s bird should 
be compared with E.fuscatus (Max.), from Brazil; or with 
Dr. Cabanis's E. argentinus, Journ. f. Orn. 1868, p. 196. 
Empidonax fulvipectus, Lawr. 
This appears to be a distinct species, having a general re¬ 
semblance to E . bairdi , but with the outer web of the outer 
rectrix whitish as in E. obscurus. The type is in Mr. Law¬ 
rence's collection. See f North-American Birds,' ii. p. 364. 
Contopus lugubris, Lawr. Ann. Lyc. N. Y. viii. p. 134. 
This species is a southern form of C. pertinax , and differs 
from it chiefly in being of smaller size, slightly darker in 
general colour, and in having the head of a darker hue. In 
f North-American Birds ' C. lugubris is treated as a “ variety " 
of C. pertinax . This view may be the correct one; but it 
must be remembered that these birds affect semialpine regions, 
and therefore, the range of the stock being broken, the bird 
is in all probability unrepresented in the low-lying valley of 
the San Juan river and the lakes of Nicaragua. 
Thamnophilus hollandi, Lawr. Ann. Lyc. N. Y. viii. 
p. 180 . 
The types of this species which I examined in the col¬ 
lection of the Smithsonian Institution appeared to me to 
belong to the common T. melanocrissus , their bills being only 
very slightly larger, not nearly enough to justify the suppo¬ 
sition that T. hollandi is a distinct species. 
Eormicivora schisticolor, Lawr. Ann. Lyc. N. Y. viii. 
p. 172 (1865). 
This is identical with the bird I have called Myrmotherula 
menetriesi , in my lists of Yeragua birds (P. Z. S. 1867, p. 144, 
and 1870, p. 195). The bird has a very wide range; and I 
can see no satisfactory differences between Central and South 
American examples. 
The following five species of this genus are all that have as 
