72 TROGLODYTIDA. 
the top of the volcano of Conchagua, at an elevation of about 4000 feet, this mountain 
forming the north-western extremity of the Gulf of Fonseca. Here, too, it was on open 
barren stony ground. The wide gap in the range of this species between Conchagua 
and Quezaltenango is partly bridged by specimens having been observed near Jutiapa, 
in Guatemala, not far from the frontier of San Salvador. 
There is considerable diversity in the plumage of different specimens of this species, 
due, we believe, to season or age. Our Quezaltenango specimens, shot in August, have 
none of the characteristic black and white spots on the back; but the whole upper 
surface is transversely barred with black, giving the bird a very different appearance ; 
a close examination, however, reveals a few freshly-moulting feathers of the normal 
type; so that we are led to infer that these specimens are either young birds or old 
ones in abraded plumage. A Cachil specimen killed in November is exactly like one 
from the Yellowstone River. 
Concerning the name Troglodytes latifasciatus ° little can be said, except that it may 
apply to this species. The description is exceedingly meagre; and, moreover, a fruitless 
search in the Berlin Museum for Lichtenstein’s type leaves us with nothing but the 
description upon which to form an opinion. 
CATHERPES. 
Catherpes, Baird, B. N. Am. p. 356 (1858). (Type Thryothorus mexicanus, Sw.) 
Though the feet are somewhat stouter in this genus than in Salpinctes, the relative 
length of the toes is about the same, and the feet are more feeble than in other 
Troglodytide. ‘The posterior covering of the tarsus is of the normal type, being a 
single plate instead of several, as in Salpinctes. The bill is long and slender, and 
without subterminal notch. The nostril is shaped much as in Salpinctes. 
Two species constitute this genus, one of which, C. mexicanus, is rather variable in 
its characters, at least in Mexico, but more stable towards the northern limits of its 
range. ‘The second species is only known from a single specimen obtained in the 
Mexican State of Vera Cruz. 
1. Catherpes mexicanus. 
Thryothorus mexicanus, Sw. Zool. Tl. ser. 2. i. t. 11’. 
Salpinctes mexicanus, Cab. Arch. f. Naturg. xiii. p. 323°; Sel. P. Z. S. 1857, p. 212°, 1858, p. 297 *. 
Catherpes mexicanus, Baird, B. N. Am. p.356°; Scl. P. Z. S. 1864, p.172°; Baird, Rev. Am. B. i. 
p- 111’; Dresser, Ibis, 1865, p.484°; Sumichrast, Mem. Bost. Soc. N. H. i. p. 545°; Lawr. 
Mem. Bost. Soc. N. H. ii. p. 268"; Dugés, La Natur. i. p. 189". 
Catherpes mexicanus, var. conspersus, Baird, Brew. & Ridgw. N. Am. B. i. p. 189”. 
Catherpes mexicanus conspersus, Coues, B. Col. Vall. i. p. 164”. 
Troglodytes murarius, Licht. Preis-Verz. mex. Vég. p. 2“ (J. f. Orn. 1863, p. 57). 
