_Description._--Above olive-brown, superciliaries and small spots on the side of the head yellowish white, rump and upper tail-coverts chestnut; wings blackish, outer webs of wing-feathers olive-brown, basal part of inner webs of secondaries yellowish white, forming a transverse bar; tail chestnut; beneath earthy olive-brown, whitish yellow on the throat, and with spots of the same colour on the upper part of the breast; under wing-coverts white; bill and feet horn-colour: whole length 5·1 inches, wing 2·5, tail 2·4. _Female_ similar. _Hab._ South America from Colombia to Northern Argentina. This is another northern form of which White obtained specimens in Misiones. He says it is not uncommon there in the thick woods, also in the orange-groves about the Jesuit ruins of St. Javier. 217. DENDROCOLAPTES PICUMNUS (Licht.). (FLAT-BILLED WOOD-HEWER.) +Dendrocolaptes picumnus+, _Scl. et Salv. Nomencl._ p. 67; _White, P. Z. S._ 1882, p. 613 (Misiones). _Description._--Above olivaceous brown; head blackish, thickly covered with yellowish-buff elongated shaft-spots; rump and upper tail-coverts tinged with chestnut; wing-feathers chestnut, tinged with olivaceous; tail chestnut; beneath pale earthy olive-brown, paler on the throat, the shafts of the feathers of the breast buffy white, forming long lines, the feathers of the belly and under tail-coverts transversely barred with blackish; under wing-coverts yellowish white, spotted with blackish; bill and feet black: whole length 10·5 inches, wing 4·7, tail 4·6. _Female_ similar. _Hab._ Brazil and Northern Argentina. White obtained specimens of this species at Concepcion, "in the thickest parts of the woods, near the river, climbing up the trees, around which it turned in corkscrew fashion." 218. DRYMORNIS BRIDGESI, Eyton. (BRIDGES'S WOOD-HEWER.) [Plate X.] [Illustration: DRYMORNIS BRIDGESI.] +Drymornis bridgesi+, _Scl. et Salv. Nomencl._ p. 67; _White, P. Z. S._ 1882, p. 613 (Catamarca); _Barrows, Auk_, 1884, p. 20 (Entrerios). +Nasica gracilirostris+, _Burm. La-Plata Reise_, ii. p. 466 (Rio Quinto). _Description._--Above and below brown, brightest on the rump, and palest beneath; long superciliaries extending down the neck, and a mystacal stripe formed of white spots with faint black edgings; wing-feathers blackish; tail chestnut; on the throat a broad white band extending to the breast; breast and belly marked with large oblong white spots, which are margined with narrow black edgings; under wing-coverts and inner margins of secondaries bright cinnamon; bill and feet horn-colour: whole length 12·10 inches, wing 5·6, tail 4·6. _Female_ similar. _Hab._ North and West Argentina.