HETERORHINA. 115 
A specimen, apparently of this species, in Mr. Lawrence’s collec- 
tion, from Panama, differs from a type specimen and Mr. Salvin’s 
description in being entirely without the fuliginous shade of the 
under parts; these are grayish along the median region, obso- 
letely varied with dusky; the sides much like the back, the same 
color tinging all the under parts of body. The blackish margins 
of the dorsal feathers are scarcely or not at all appreciable; the 
spots on the coverts are very obsoletely indicated. It is probably 
a more adult bird than as described by Mr. Salvin. 
M. philomela is said by Mr. Salvin to differ from J2 bambla in 
having the wing coverts spotted, instead of being banded with white. 
M. albigularis, of Sclater, is said to differ from both in the white 
throat, and from philomela in the white bands of the wing. 
Total length, 4.00; wing, 2.05; tail, 1.15; graduation, .33; exposed portion 
of 1st primary, .80, of 2d, 1.30, of longest, 4th (measured from exposed base 
of Ist primary), 1.60; length of bill from forehead, .76, from nostril, .48, 
along gape, .82; tarsus, .80; middle toe and claw, .74; hind toe and claw, 
-65; claw alone, .30. 
Smith-|Collec-| $ | | 
mith-|/Collec-| sex 
: 4 When ; 
sonian} tor’s { and Locality. a Received from Collected b 
No. No. | Age. | Collected. | 4 
30,660 | 101 - | Vera Paz, Guat. | eps | O. Salvin. Salvin & Godman, 
i 68 g Panama. | | Cab. Lawrence. | M’Lean. & Galb. 
~ HETERORHINA, Barrp. 
Heterorhina, Barro. (Type Scytalopus prostheleucus, SCLATER.) 
In the introductory synopsis, and in the preceding remarks rela- 
tive to Microcerculus, I have sufficiently indicated the characters 
of this genus. The following synopsis may serve to distinguish the 
allied species :— 
A. Back brownish-red; head darker; sides of head black, 
spotted with white. 
a. Throat pure white, continuous with pure white on 
the breast and belly; wing coverts spotted with 
white. 
1. Top of head reddish-brown, or like the back. 
Breast and belly soiled white; tarsus .84 . prostheleuca. 
Breast and belly pure white; tarsus .90 . Jeucosticta. 
2. Top of head black. (Specimen from the Napo.) 
d. Feathers of throat white, edged with black; breast 
plumbeous ; coverts unspotted. 
1. Top of head reddish or olive brownish ; tarsus .90 griseicollis. 
2. Top of head black; tarsus 1.00. : - leucophrys. 
