a 
232 ON THE CLASSIFICATION OF 1 a1 * 
with the culmen gradually curved to the ti ip dy a 
is bent, but not hooked, over the lower mane 
- Feet formed both for perching and walkin 
Perrocincia, Vigors. Rock Thrushes. Bill ena ash. 
like: the tip of the upper mandible abruptly be pen 
down, and nearly entire. Wings moderate; the 
first quill spurious; the second shorter than the 
three next, which are equal, and the longest. Tail — 
even. Anterior scales divided. Lateral toes equal. 
Claws small, but slightly curved. 
P. montana. Ois. d’ Af. pl. 101. 
Petrophila, Sw. Bill thrush-like: the culmen and tip — 
of the upper mandible gradually bent, and entire. 
Wings and tail as in the last. Legs pale: the anterior — 
scales entire. Lateral toes unequal ; the inner shortest. 
Claws moderate, and fully curved. 
P. cyanocephala. Gould’s Cemmurys pl. 19. 
Mervuta, Willughby. Bill moderate, straight ; thie 
tienen slightly curved ; the tip distinctly notched : 
the gape slightly bristled. Wings lengthened, pointed 
the first quill spurious; the second a little longer 
than the third, which is longest. Tail moderate, 
nearly even. Feet moderately long. Lateral eal 
. 
almost equal, but the inner rather the shortest. Tar 
- scales entire, smooth. 
M, nigra. Selby, pl. 45. f. 4. torquata. Selby, pl. 44. f. 2, 
Tliaca. Ib. pl 45. f. 3. cyanotis. Ill. Orn. pl. 46. 
Orpuevus, Sw. General structure of Merula. Bill more 
_ curved in the culmen; the notch small, or nearly 
obsolete. Rictal bristles rather strong. Win 
rounded ; the three first quills graduated. Tal 
lengthened, graduated, or rounded. Inner toe man - 
festly shorter than the outer. | . z 
x 
O. polyglottus. Wilson, pl. 10. f. 1. rufus. Wils. 14. f, l. 
curvirostris, Pl. Col. 441. - | 
Cossypha, Vigors. General structure of Orpheus, but 
the wings more rounded ; and the tail less so. The 
rictus smooth. Africa only. - | 
~“ 
