33. TROGLODYTES. 247 



The Eufons-rumpcfl !Marsh-'Wrcn inhabits the greater part of 

 South America, from Southern Brazil and Parafjuay to Bolivia, and 

 northwards through the whole of the Xeotropical Itegiou to Southern 

 Mexico. 



a. Ad. sk. Guatemala. Eyton Collection. 



b. Ad. sk. Bahia Blanca, Jan. 4, 1837. Charles Darwin, Esq. [C.]. 



6. Cistothoms bmnneiceps. 



Cistothorus brunueiceps, Salvin, Ibis, 1881, p. 129, pi. iii. fig. 1. 



Adult. Head uniform dark fulvous brown; mantle and back black, 

 streaked broadly down the centre of the feathers with fulvou.s : .sca- 

 pulars nearly uniform fulvous brown, with a few obsolete markings 

 of dusky blackish near the tip ; lower back and rump rather more 

 rufous-brown, the former with indistinct bars of dusky black ; u]iper 

 tail-coverts rufescent brown, obscurely barred with black; wing- 

 coverts like f^he back, barred with blackish on the median and greater 

 series, the latter being also slightly washed with rufous ; quills dusky 

 brown, externallj' rufescent brown, barred with bLick, the inner 

 secondaries banded across, the primaries margined with whity brown 

 along the outer web ; tail-feathers rufous-brown, barred across with 

 black, about twelve bars being perceptible ; lores, eyelid, and a dis- 

 tinct eyebrow rufous-buff; cheeks and car-coverts rufous-buff, as 

 also the entire under surface, paler on the centre of the abdomen ; 

 under wing-coverts and axillaries dull white, washed with fulvous ; 

 quills dusky brown below, ashy along the edge of the inner 

 web. Total length 4-7 inches, culmen 0-55, wing 1-S5, tail 1*85, 

 tarsus 0-8. 



Mah. Ecuador. 



a. Ad. sk. Ecuador. Clarence Buckley [C.]. 



33. TROGLODYTES. ■ „ 



Troglodytes, VteiU. Ois. iTAmer. xr-pf. i. p. C<2 (1807). . . T. domesticus. 

 Hvleniathrous, Neuwied, Bdtr. yafiirg. Bras. iii. p. 742. 

 (1830). 



Leg of Troglodyfes domesticus. 



Banrje. Throughout the entire Xew "World, excepting the extreme 

 north. 



