170 SMITHSONIAN MISCELLANEOUS COLLECTIONS . [vox. 48 
sometimes decidedly so; gonys slightly ascending ; maxillar tomium 
with several notches on its distal portion; nostrils rounded oval, a 
little operculate basally, not at all anteriorly, the frontal feathering 
not extending beyond the posterior margin of nostrils; nasal bristles 
long and rather numerous. 
Type.—Andropadus virens CASSIN. 
The roundish nostrils at once separate this very distinct genus 
from all its relatives with serrate maxilla, excepting Stelgidocichla, 
and from this it may easily be distinguished by other characters, as 
above shown. 
The species are: 
Eurillas virens virens (Cassin). 
Eurillas virens grisescens (Reichenow). 
Eurillas virens zombensis (Shelley) (= marwitzi Reichenow). 
Eurillas montana (Reichenow). 
Following is a key to the genera treated in the present connection : 
A.—Maxillar tomium with two or more subterminal notches. 
a.—Nostrils roundish oval and but little operculate. 
b.—Bill shorter and broader, its height at base decidedly more than 
one-third the length of exposed culmen; frontal feathering not 
extending beyond posterior edge of nostrils; lateral feathers 
Ofmthtoat not lengthened... oe etre eit eiseie ee Eurillas 
b’—Bill longer and more. narrow, its height at base about equal to 
one-third the length of exposed culmen; frontal feathering 
extending superiorly to middle of nostrils; lateral feathers of 
throat conspicuously lengthened................ Stelgidocichla 
a’.—Nostrils linear or lengthened oval, much operculate. 
b.—Narial operculum densely feathered to anterior edge of nos- 
lito riety tecr caters nese Bn SeRnaca Ame ies aA HD OmD oodc Calyptocichla 
b’—Narial operculum sparsely feathered, and not much, if any, be- 
yond middle of nostril. 
c.—Exposed culmen long, almost straight except at tip; height 
of bill at base less than one-third its length, the height 
and breadth equal at anterior edge of nostrils. .Stelgidillas 
c’—Exposed culmen short, curved throughout; height of bill at 
base more than one-third its length, its height at anterior 
edge of nostril greater than its breadth at same point. 
d.—Frontal feathering extending on operculum nearly to 
middle of nostril; rictal and narial bristles shorter 
and weaker; bill much stouter, more compressed. 
Andropadus 
d’—Frontal feathering not extending beyond posterior edge 
of nostril; rictal and narial bristles longer and 
stronger; bill more slender, less compressed. 
: Charitillas 
ae 
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