188 ZOOLOGY. 



UPPUCERTHIA DUMETORIA, Geoffr. 



Uppucerthia dumetoria, Geoffroy, Nouv. Ann. du Mus. I, 1832, 394. 



Gay, Fauna Chilena, Aves^ 284. 

 Figure. — Voy. Beagle, Birds, PI. xix. 

 Another of the hirds of the same general habits as the two preceding. This fine species in- 

 habits all parts of the country, but is most frequently seen in the plains, and frequently in the 

 most barren districts. It is, however, occasionally met with in the Andes, as indicated by labels 

 attached to specimens in the present collection. It is of common occurrence in Chile, and in 

 other countries of western South America. 



EEICORNIS MELANURA, Gray. 

 Plate XXI, Fig. 1. Adult male. 



Ericornis melanura, G. R. Gray, Gen. Birds, I, 1847, 133. 



Wings short, fourth quill slightly longest ; tail rather long, rounded ; bill very straight, 

 slender ; tarsi and toes strong. Head above and back pale brown, tinged with cinereous ; rump 

 and upper coverts of the tail bright rufous ; quills dark brown, with the basal half of the 

 shorter primaries and of the secondaries rufous. Throat and breast silky white ; abdomen ashy; 

 ventral region and under coverts of the tail rufous, darker on the latter. Bill dark, under 

 mandible white at base ; legs dark. Total length (of skin) about 7 inches, wing 31, tail 3^. 



Several specimens of this bird are in the collection of the Expedition, all of which agree very 

 nearly in markings, and uniformly present the black tail, which distinguishes this species from 

 E. pli(enicura., (Gould.) 



This bird habitually frequents the ground, and subsists on insects. 



SYNALLAXIS D OR SO-M AC ULATA, D'Orb and Laf. 



Synallaxis dorso-maculata, (D'Orb and Laf.) Gxjerin's Mag. 1837, 21. 

 Sylvia melanops. (Vieill.) Gay, Fauna Chilena, Aves, 293. 

 Figures. — D'Orb. Voy. Am. Mer. Ois. PI. xiv. Figs. 1 and 2. 



This little bird is labelled as having been obtained in the interior. It inhabits the vicinity 

 of water-courses, but is not abundant. 



SCYTALOPUS FUSCUS, Gould. 

 Plate XXI, Fig. 2. 



Scytalopusfuscus, Gould, Proc. Zool. Soc. London, 1836, 89. 

 Scytalopus obscurus, (Gould) Gay, Fauna Chilena, Aves, 308. 

 VuLG. C Mr can Negro. 



A single specimen only is in the collection of the Expedition. It is labelled as being a male 

 bird, and the entire plumage is uniform dark slate color. Seiior Salinas informed Lieut. Gilliss 

 that this bird had wholly escaped his attention previously, perhaps because of its frequenting 

 marshy ground, as much as from its obscure color. 



It was obtained in the vicinity of Santiago. 



