1867.] MR. p. L. SCLATER ON CHILIAN BIRDS. 325 



Fam. Pteroptochid/E. 



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. Voy. 

 Beagle, iii. p. 74. — S. /nscus, Gould; Sclater, C. A. B. p. 168. — 

 Pteroptochos albifrons, Landb. Wiegm. Arch. 1857, p. 2/3. 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 distin- 

 guishable from the preceding by its larger size, lighter, more cine- 

 reous colouring, and longer tail. It is more like S. senilis, Lafr., 

 of New Granada. 



3. Triptorhinus paradoxus (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 my 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. Tyrannid^. 

 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. 



