TROGLODYTID. 91 
extension up the back. The throat alone is white; the remaining 
under parts, the flanks especially, having an ashy brown tinge, not 
noticed in the other species. 
| | | 
Smith-| Collee-| Sex 
| 
y | 
sonian; tor’s | and Locality. ae | Received from Collected by 
No. No. | Age. s | 
8,176 | .. eit Mexico. SMT D Tas GahtaMe Oe Meee 
13,688 ad “ “ 
Famity TROGLODYTID”. 
Rictal bristles wanting ; the loral feathers with bristly points; the frontal 
feathers generally not reaching to nostrils. Nostrils varied, exposed or not 
covered by feathers, and generally overhung by a scale-like membrane. Bill 
usually without notch. Wings much rounded, about equal to tail, which is 
graduated. Primaries ten, the first generally about half the second. Basal 
joint of middle toe usually united to half the basal joint of inner, and the 
whole of that of the outer, or more. Lateral toes about equal, or the outer a 
le the longer. Tarsi scutellate. 
The impossibility of defining any large group of animals, so as to 
separate it stringently and abruptly from all others, is well under- 
stood among naturalists; and the Z7roglodytide form no exception 
to the rule. Some bear so close a resemblance to the Mocking 
Thrushes as to have been combined with them; while others again 
exhibit a close approximation to other subfamilies.1 
' The genus Lhodinocichla has, by most of our systematic writers, been 
placed among the Dendrocolaptide, and thus as not belonging to the Oscines 
at all. Taking all this for granted, I deferred any investigation of the species 
until I had finished the Oscines. A casual examination has, however, recently 
convinced me that the genus is truly Oscine, and possibly one of the T’roglo- 
ditide. Dr. Sclater coincides in this view, and is inclined to place it very 
near //eleodytes. As it is now too late to introduce it in its proper place, I 
defer further consideration of the subject to the Appendix, and merely give 
the principal synonyms :— 
+ Rhodinocichla rosea. 
Furnarius roseus, Lesson, Ill. Zool. pl. y.—Rhodinocichla rosea, HARTL. 
Cab. Jour. 1853, 33.—Scu. Pr. 1855, 141; 1846, 140.—Is. Catal. 
