166 SMITHSONIAN MISCELLANEOUS COLLECTIONS [voL. 48 
than broad at anterior edge of nostrils, its height at base about equal 
to one-third the length of exposed culmen; culmen much more 
curved; rictal bristles weaker. 
Description.—Tail about nine-tenths of wing; throat feathers not 
lengthened; tarsus scutellate; wing about 4 times the length of 
tarsus ; tarsus about 1% times the exposed culmen ; head not crested ; 
nuchal hairs short, not branched; rictal bristles weak, reaching less 
than one-fourth the length of bill, and not beyond the anterior 
edge of nostrils; bill rather slender, depressed basally, higher than 
broad at anterior margin of nostrils, decidedly broader than high at 
base, its height at base equal to one-third of exposed culmen ; culmen 
much curved; gonys practically horizontal; maxillar tomium with 
several subterminal notches ; nostrils linear, slit-like, strongly opercu- 
late, the operculum densely feathered throughout; nasal bristles 
short and very few in number. 
Type.—Criniger serinus VERREAUX. 
This genus is notable for its closely and completely feathered 
nasal operculum, in which respect it is differentiated from all its 
allies. It seems undoubtedly to be most nearly related to Stelgidillas, 
but is in many respects intermediate between the latter and Andro- 
padus. With other genera, already treated, it scarcely needs com- 
parison. 
The name Trichites, long ago given to this group by Heine,’ is 
preoccupied by Trichites Lycett,? for a fossil mollusk, and has there- 
fore been replaced by the name above used. 
The type is the only species, and should stand as: 
Calyptocichla serina (Verreaux). 
ANDROPADUS Swainson 
Andropadus SwAINson, Fauna Bor.-Amer., 11, 1831, p. 485 (type L’im- 
portun, Levaillant). 
Polyodon LAFRESNAYE, Mag. Zool., 1832, Cl. 1, pl. 4 (type Turdus im- 
portunus Vieillot). 
Chars. gen.—Similar to Calyptocichla, but bill relatively shorter, 
stouter, decidedly compressed, its height at base more than one-third 
the length of exposed culmen; tarsus at least 14 times the exposed 
culmen ; nostrils wider ; nasal operculum feathered on only its basal 
half, and much less densely; rictal bristles longer; nuchal hairs 
branched. 
Description.—Tail less than wing, but more than nine-tenths its 
length; throat feathers not lengthened; tarsus strongly scutellate ; 
*Journ. f. Ornith., 1860, p. 139. 
? Ann. and Mag. Nat. Hist., Ser. 2, v, 1850, p. 343. 
