THRIOTHORUS Mexicanus. 
Mexican, or White-throated Wren. 
S eaIEREene “cane 
Family Certhiade. 
GENERIC CHARACTER.—Vieil. Orn. 2. 627. 
SpEeciFIC CHARACTER. 
Brown, varied with dusky lines and white dots; throat and breast 
snowy ; tail ferruginous, with black bars. 
Mus. D. Taylor. 
eR 
In the collection of Birds before alluded to, formed by the 
late Mr. John Morgan at Real del Monte, was a single skin 
of this new and elegant species. The snowy whiteness of 
its throat, renders it not liable to be mistaken in a group of 
birds, presenting in general a great similarity of plumage. 
The upper parts are greyish brown, varied with obscure, 
dusky, broken lines of blackish; each feather being tipt 
with a small round white spot: wing covers and tertials 
the same: upper and under tail covers ferruginous ; each 
feather with a white spot before the white one which is at the 
tip, lower breast and all the under plumage rufous brown, 
crossed by black lines ; the white dots nearly obsolete, tail 
ferruginous, with about six black bars: legs brown, hind 
claw as long as the tarsus. Fourth and fifth quill longest. 
This genus has been judiciously separated by M. Vieillot 
from Troglodytes (to which belongs our Brown Kuropean 
Wren), on account of its lengthened and generally notched 
bill: the greater prolongation of the hind toe is a further 
distinction ; indicating an affinity with the more perfect 
seansorial Creepers. 
To this group belongs the Myothera obsoleta of Prince 
Charles Bonaparte. No example of that genus, or of Tham- 
nophilus (in their most extended sense), has yet been found 
north of Cuba: their straight, cylindrical, and abruptly- 
hooked bills, offer a striking contrast to the lengthened, 
compressed, curved, and consequently feeble structure of 
this part in Thriothorus and Troglodytes. 
Total length, 54; bill, 1,55; wings, and tail, 24%; tarsi, 3'5. 
