146 
ginatis: alis caudaque intus nigricantibus, externe brunnes- 
centibus: subtus alba, gutturis et pectoris totius plumis stricte 
brunneo marginatis, quasi squamatis ; his marginibus versus 
ventrem gradatim latioribus: ventre crissoque einnamomeo- 
brunneis, nigro transversim vittatis: rostro nigro, mandibula 
inferiore basi alba ; pedibus pallide brunneis. 
Long. tota 3°0: alee 2°2: caude 1-2: rostri a fronte °5. 
Mr. Strickland’s name Holocnemis, proposed in 1844 for the 
H. nevia (figured in Cont. to Orn. 1849, pl. 18), has been pre- 
viously applied to a family of Coleoptera by Schilling, and I there- 
fore propose to change it into Heterocnemis. A second species of 
the genus seems to be the bird figured in Buffon’s Pl. Enl. 73, 
fig. 2, under the name of ‘Le Bambla de Cayenne.’—(Turdus 
bambla, Bodd.—Heterocnemis bambla, mihi.)—The present bird is 
very closely allied to the latter. In the upper plumage it is very 
similar, being only of a more cinnamomeous tinge; but it may be 
distinguished by the want of the white markings on the wings, and 
the throat, breast and upper belly being white, each feather narrowly 
margined with brown. In H. dambla these parts are ash-brown, 
with obsolete transverse markings. Lesson’s Myrmothera troglo- 
dytes (Desc. d. Mamm. et Ois. p. 301, no. 118) seems the same as 
H. bambla. This form is indeed very closely connected with some 
of the Wrens, and hardly to be separated from certain birds that are 
usually placed in the genus Scytalopus. 
184. HypocnemMis ERYTHROPHRYS.— Pithys erythrophrys, 
Sclater, P. Z. 8. 1854, p. 255, pl. Ixxii. fig. 1. 
This is possibly the same as Dr. Cabanis’ Conopophaga angus- 
tirostris, Schomb. Guian. ili. 685. 
185. Hypocnemis Leucopnurys (Tsch.).—Thamnophilus myio- 
therinus 2, Spix, Av. Bras. ii. p. 30, pl. 42, fig. 2?—Pithys leuc- 
ophrys, Tsch. F. P. p.176.—Myrmonaz leucophrys, Cab. Orn. Notiz. 
p- 211? 
HI. nigro-schistacea; alis caudaque nigricantibus; pileo antico et 
superciliis latis albis: gutture nigro in ventrem sensim dilutes- 
cente: rostro pedibusque nigris. 
Long. tota 5:0: ale 2°75: caudee 2:0. 
This bird, which is common in collections from Bogota, appears 
to be the same as Tschudi’s species, though his figure is not a good 
one. 
186. HypocNeMIs MYIOTHERINA (Spix).—Thamnophilus myio- 
therinus &, Spix, pl. 42, fig. 1—Hypocnemis melanolema, Sclater, 
P. Z. 8. 1854, p. 254. pl. Ixxii. fig. 2. 
I have erred in giving a fresh name to this species, which appears 
to be the same as the bird figured by Spix as the male of his 
Thamnophilus myiotherinus. A Bogota specimen is in the British 
Museum. ; 
