Proceedings of the Scientific Meetings of the Zoological Society of London 1874

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1874.] MR. P. L. SCLATER ON THE GENUS SYNALLAXIS. 21 outer edges of the primaries and secondaries, by the crested head stronger bill. 42. SYNALLAXIS RUTICILLA. Sphenura ruticilla et S. guajacina, Licht. in Mus. Berol. Synallaxis ruticilla, Cab. et Hein. Mus. Hein. ii. p. 27 (1859). Synallaxis fitis, Pelz. Sitz. xxxiv. p. 123 (1859), et Orn. Bras. p. 38. Leptoxyura obsoleta, Reich. Handb. p. 171 (?). Fusca, cauda tota et alarum tectricibus rufis: loris et superciliis longis albis : fronte et capitis lateribus albidis, fusco subobsolete striatis : subtus ochracescenti-alba, gula media fiavicante tincta : ventre et lateribus cinereo indutis : long, tota 5'8, ala 2*2, caudce rectr. ext. 1*4, med. 2 9. Hab. Brasil. merid. et Monte Video (Sellow) ; Curytiba, prov. Parana (Natt.). Mus. Berol. Obs. Species haud dissimilis S. pallida, sed fronte albido fusco striato et pileo non rufo, distinguenda. Hr. v. Pelzeln having sent me for examination one of the types of his S.fitis, I have little hesitation in associating it with S. ruticilla, of which I have examined the typical examples in the Berlin Museum. Hr. v. Pelzeln is probably correct in referring Reichenbach's Leptoxyura obsoleta to the present bird; but Sylvia obsoleta of the Berlin Museum (whence Reichenbach's name was originally derived) belongs to the next following species. 43. SYNALLAXIS STRIATICEPS. Synallaxis striaticeps, Lafr. et D'Orb. Syn. Av. i. p. 22 ; D'Orb. Voy. Ois. p. 241, pi. 16. f. 1; Sclater, P. Z. S. 1859, p. 193; Burm. La-Plata Reise, ii. p. 469. Phleocryptes striaticeps, Hudson, P. Z. S. 1872, p. 544. Sylvia (sive Synallaxis) obsoleta, Mus. Berol. Supra cinerea, pileo nigro striato: superciliis albis: alis fuscis, harum tectricibus extus cum cauda tota rufis : subtus lactescenti-alba: rostro longo, gracili, incurvo : long, tota 5*7, ala 2 3, cauda 2*4. Hab. Rep. Argentina et Uruguay, Corrientes (D'Orb.); Buenos Ayres and Rio Negro of Patagonia (Hudson) ; Monte Video (Sellow) ; Mendoza (Burm.). Sect. c. Species pileo albo : alis extus et cauda rufis. 44. SYNALLAXIS ALBICEPS. Synallaxis albiceps, Lafr. et D'Orb. Syn. i. p. 23; D'Orb. Voy. p. 241, pi. xvi. fig. 2. Supra cum alis et cauda rufa : pileo albo : capitis lateribus nigri­cantibus : subtus olivacea, gula albicante : long, tota 5'8, ala 2'5, cauda rectr. med. 2'5, ext. l-5. Hab. Sicasica, Bolivia (D'Orb.). Mus. Brit.