CERTHIADiE. — TBOGLODYTIN^. 319 
toe equal to the hinder ; outer toe shorter than the 
middle, and connected to it at its base; inner toe 
much the shortest, almost free. All the claws slen- 
der, and much curved. Australia, 2.* 
C. auricomis. PI. Col. 281. mystacalis. PI. Col. 33.5. 
f. 2. male ; 1. female. 
SuBFAM. TROGLODYTIN^. 
Feet with the tarsus longer than the hind toe, which is 
but slightly developed. Lateral toes nearly equal, and 
cleft to their base. The tenuirostral division. 
Platyurus, Sw. Bill moderate, straight, compressed ; 
very high at the base of the culmen, which is there 
slightly gibbous, and divides the frontal feathers. 
Upper mandible distinctly notched. Nostrils very 
large, basal, protected by a scalelike convex mem- 
brane ■ Frontal feathers stiff, setaceous, narrow, and 
sometimes reflected forwards. Wings remarkably 
short and rounded, very convex. Tail (typically) 
lengthened and graduated; the feathers very soft and 
broad. Feet very large. Middle toe as long as the 
tarsus; lateral toes equal, and cleft at their base; 
hind toe shorter than the tarsus. All the claws 
compressed, and but slightly curved; the three 
anterior small; the posterior twice as long. South 
America. 
P. corniculatus. Bra*. B. pl.S5. rubecola. Bras. B. pi. 14. 
affinis. lb. pi. .57. r 
niger. Part 5 . No. 128. lepturus. Kitthtz. pi. 5. 
Thrvothurus, VieiUot. Bill lengthened, much longer 
than the head, compressed, straight, or very slightly 
curved : the tip of the upper mandible slightly re- 
flexed, and obsoletely notched; the base rather 
broad. Wings and tail moderate, rounded. Feet 
large, strong. Tarsus lengthened, much longer than 
the hind toe, but equal to the middle one. Lateral 
» The authors of the PI. Co!, have been 
* CUmacteris. 
of one , 
the characters of 
