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ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 
2. OXYURUS? DORSO-MACULATUS. Goilld. 
Synallaxis dorso-maculata. D’Orb. and Lafr. Voy.de l’Amer. Mer. Ois. pi. 14. f. 1. 
Mag. de Zool. 1837, Cl. 11. p. 21. 
My specimen was procured from Maldonado, {June), where it was not common. 
It frequents the same localities with Synallaxis maluroides, and the two species of 
Limnornis, 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. Gould. 
Rostrum capitis longitudine, aut longius, culmine recto, gonide ascendente, per omnes 
partes lateraliter compressum, durum et apice inemarginatum, naribus basalibus lon- 
gitudinalibusque ; alee mediocres et subacuminatce , plumis tertia, quarta et quinta 
cequalibus longissimisque ; cauda mediocris, scapis ultra radios in spinas acutas pro- 
duct is ; tarsi sub-breves, digitis unguibusque longis, his multum curvatis, digito 
externo valido et fere digiti medii longitudine, digitis lateralibus ineequalibus, 
internis multum brevioribus. 
Dendrodramus leucosternus. Gould. 
Plate XXVII. 
D. capite, dorsi parte superiore alisque nigrescenti fuscis, rubro-tinctis ; primariis 
secundariisque subferrugineo fusco irregulariter marginatis, uropygio caudaque 
nitidb ferrugineis, gula pectoreque albis, abdomine medio rufescenti fusco, singulis 
plumis ad apicem macula magnd ovali alba ; hypochondriis saturate nifis ; rostro 
basi corneo, apice pedibusque nigro fuscis. 
Long. tot. 6 t 3 ¥ unc. ; rostri, 1-^j ; aloe, 3 ; caudce, 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- 
tirus tupinieri, it may constantly be seen running up the trunks of the lofty forest 
