82 ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 



2. OXYURUS? DORSO-MACULATUS. Gould. 



Synallaxis dorso-maculata. D'Orh. and Lafr. Voy. de I'Amer. Mer. Ois. pi. 14. f. 1. 

 Mag. de Zool. 1837, CI. 11. p. 21. 



My specimen was procured from Maldonado, (June), where it was not common. 

 It frequents the same localities with Synallaxis vialuroides, and the two species of 

 Liimiornis, and has very similar habits with them. In structure, and in the general 

 shade of its plumage, it is closely allied to the foregoing species, although differing 

 from it in habits. 



Genus.— DENDRODRAMUS. Goidd. 



Rostrum capitis lotigiludine, out longius, culmine recto, gonide ascendente, per omnes 

 partes lateraliter compressum, durum et apice inemarginatum, narihus hasalibus lon- 

 gitudinalibusque ; alee mediocres et suhacuminattE , plumis tertia, quarta et quinta 

 cequalihus longissimisque ; cauda mediocris, scapis ultra radios in spinas acutas pro- 

 duct is ; tarsi sub-breves, digitis imgtiibusque longis, his multum curvatis, digito 

 externo valido et ferh digiti medii longitudine, digitis lateralibus incequalibus, 

 internis multum brevioribus. 



Dendrouramus leucosternus. Gould. 



Plate XXVII. 

 D. capite, dorsi parte supcriore alisque nigrescenti fuscis, rubro-tinctis ; primariis 

 secundariisque subjeri-ngineo fiisco irrcgulariter marginatis, uropygio cauddque 

 nitidi J'errugineis, gidd pccloreque albis, abdomine medio rufescenti fusco, singulis 

 plumis ad apicem macula magna ovali alba ; hypochondriis saturate riifis ,• rostro 

 basi corneo, apice pedibusque nigro fuscis. 



Long. tot. 6~^ unc. ; rostri, l-jV ; alw, 3; caiiJcc, 2-^ ; tarsi, ■^. 



Head, upper part of the back and wings blackish brown, tinged with red ; pri- 

 maries and secondaries irregularly margined with dull rusty brown ; rump 

 and tail rich ferruginous ; throat and chest white ; feathers of the centre of 

 the abdomen reddish brown, with a large oval spot of white near the tip of 

 each feather ; flanks deep rufous ; bill horny at the base, the remainder and 

 the feet blackish brown. 



Habitat, Chiloe and Southern Chile. 



This bird is common in the forests of Chiloe, where, differently from the Oxy- 

 urus iupinieri, it may constantly be seen running up the trunks of the lofty forest 



