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Show 1867.] MR. P. L. SCLATER ON CHILIAN BIRDS. 325 Fam. PTEROPTOCHIDCE. This singular group of birds is one of the most characteristic forms of the peculiar avifauna of Chili, nearly one-half of all the known species of the group (some sixteen or seventeen in number) occurring within the republic. The species definitely ascertained to be Chilian are-- 1. Scytalopus magellanicus (Lath.); G. R. Gray in Zool. Vov. Beagle, iii. p. 74.-S. fuscus, Gould; Sclater, C. A. B. p. 168.- Pteroptochos albifrons, Landb. Wiegm. Arch. 1857, p. 273. This species extends from Southern Chili, throughout Patagonia and the adjacent Chonos archipelago, into the Falkland Islands. Messrs. Philippi and Landbeck's specimens are from Valdivia and Colchagua. The white spot on the head of the adult is described by Mr. Gould, and figured in Sir William Jardine's plates ; so that there is no doubt, I think, of Landbeck's Pt. albifrons being the same bird as Gould's S. fuscus, whatever may be the case as regards Sylvia magellanica of Latham, which I adopt as a synonym on Mr. Gray's authority. 2. Scytalopus fuscoides, Lafr. Contr. Orn. 1851, p. 149. Messrs. Philippi and Landbeck send two examples, which I refer to this species, under the name " Scytalopus obscurus." They are from the province of Santiago. This species is immediately distinguishable from the preceding by its larger size, lighter, more cinereous colouring, and longer tail. It is more like S. senilis, Lafr., of N ew Granada. 3. Triptorhinusparadoxus (Kittl.); Cab. Orn. Not. p. 219; Bp. Consp. p. 205. Messrs. Philippi and Landbeck send a fine series of this curious form from Valdivia, under the name " Scytalopus magellanicus." 4. Pteroptochos rubecula, Kittl. ex Chil. merid. 5. P. albicollis, Kittl. ex Chil. centr. 6. Hylactes megapodius, Kittl. ex Chil. centr. et bor. 7. H. tarnii (King) ex Chil. merid. These are all four well-known species. 8. Pteroptochos castaneus, Phil, et Landb. Wiegm. Arch. 1865, pp. 56, 121. This is a very fine species, most nearly allied to H. tarnii, and belonging to the same section (Hylactes), with developed hind claw, but quite distinct. I have long had a skin of it in m y collection, obtained years ago in Chili by the late Mr. Bridges, and had wrongly referred it to H. tarnii*, which I do not possess. H. castaneus is from the province of Colchagua, while H. tarnii has a more southern range. Fam. TYRANNIDAE. Genus AGRIORNIS. A. livida (Kittl.) and A. maritima (Lafr. et D'Orb.) are both well-known Chilian species of this genus. The former is abundant * Cf. Cat. A. B. p. 170. |
