Narrative of the surveying voyages of his majesty's ships Adventure and Beagle (vol.1): between the years 1826 and 1836 : describing their examination of the southern shores of South America, and the Beagles's circumnavigation of the globe

536 CATALOGUE BIRDS. remigihus fusco-atris ; remigiim omnium, mediis exceptis, pogoniis internis alhis. Length 5 inches. Island of Juan Fernandez. Hylactes. — Novum genus. Megapodio affine. Characteres Generici. Rostrum subelongatum, subtenue, apice subemarginato : naribus hasalibus, longitudinalibus, membrand subtumescenti pilisque per mediam longitudinem tectd. AlcB, brevissimae, rotundatce ; remige 5ta longissimd. Cauda, subelongata, gradata. Pedes, fortes : tarsis subelongatis, in fronte scutellatis ; digitis unguibusque elongatis, hie fortioribus subcompressis ; halluce forr- tissimo, incumbente. This genus appears to have some resemblance to MM. Quoy and Gaimard's genus Megapodius : but no specimen of it being in this country^ and my bird differing in essential points from its generic characters, particularly in the length and form of the wings, which in my bird are rounded, and so short as not to reach beyond the base of the tail, I have formed it into a new genus, for which the term Hylactes (from its note, which very much resembles the sharp bark of a dog) has been selected. 32. Hylactes Tarnii. — Nob. in Proceedings of Zool. Soc. Hyl. saturate fusco-brunneus ; fronte, dorso, abdomineque rii/is, hoc fusco fasciato. At Chilo'e and Port Otway, in the Gulf of PeSas. The specific name I have selected is in compliment to Mr. John Tarn, surgeon of the Adventure, to whose attention, in procuring and preserving numerous specimens in ornithology, I am greatly indebted. 33. Strutheo Rhea.— Lin. (223.) The American ostrich. Maldonado. 34, CoLUMBA FiTZ RoYii. — Nob. in Proceedings of Zool. Soc. Col. rinacea ; alis, dorso imo, caudaque plumbeis, hujus fascid remi- gihusque atris: nuchce plumis viridi-splendentibus jfoscia occipitali alba. In the woods of Childe. Dedicated to Captain Robert Fitz Roy, who succeeded to the command of H.M.S. Beagle upon the death of Captain Stokes.