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Show 1874.] MR. P. L. SCLATER ON THE GENUS SYNALLAXIS. 1 1 darker and more uniform below, but hardly more so than in two Bogota skins in Salvin and Godman's collection. Sect. c. Species pileo fusco ; alis extus et cauda rufis. 10. SYNALLAXIS GUIANENSIS. Rouge-queue de Cayenne, Buff. PI. Enl. 686. fig. 2. Motacilla guianensis, G m . S. N . i. p. 988. Synallaxis guianensis, Cab. et Hein. Mus. Hein. ii. p. 27. Sphenura cinnamomea, Licht. Doubl. p. 42. Synallaxis inornata, Pelzeln, Sitz. Akad. Wien, xx. p. 161, & xxxiv. p. 120 ; Orn. Br. p. 36 ; Sclater, P. Z. S. 1859, p. 194. Supra fusca : alis extus et cauda rufis : subtus valde dilutior, gutture et ventre medio albescentibus: long, tota 6, alee 2*3, caudce 3. Hab. Guiana, Amazonia inferior et Columbia interior: Cayenne (Buff.); Surinam (C. Bartlett) ; Para (Layard); Borba and Rio Negro (Natt.); Bogota (Mus. P. L. S.). There can, I think, be little doubt that this bird is the "Rouge-queue de Cayenne" of Buffon, and therefore the true type of Temminck's genus Anabates, as has been shown by Cabanis and Heine. I have examined the specimens in the Berlin Museum (from Para and Cayenne) marked Sylvia (serius Sphenura) cinnamomea. I have also a typical example of Pelzeln's Synallaxis inornata, which I think cannot be distinguished from other skins from Para, Cayenne, and Bogota. 11. SYNALLAXIS ALBILORA. Synallaxis albilora, Pelzeln, Sitz. Akad. Wien, xx. p. 16, & xxxiv. p. 120 ; Orn. Br. p. 37 ; Sclater, P. Z. S. 1859, p. 193. Synallaxis modesta, Natt. M S . Supra fusca : alis extus et cauda rufis: subtus cinnamomea ventre dilutiore, gutture et loris albescentibus: long, tota 6, al& 2*4, cauda 3. Hab. in Brasil. int. prov. Cuyaba et Matogrosso (Natt.); Bolivia (Bridges). This species, of which I have a typical example received from Vienna, is very closely allied to S. guianensis. The white lores are not a sufficient distinction, as they are quite as white in some specimens of the latter. But the body below is cinnamomeous in the present bird, and it is possible that the two species may be really distinct. A Bolivian skin (collected by Bridges) in the British Museum appears to be referable to this species. 12. SYNALLAXIS CINERASCENS. Synallaxis cinerascens, Temm. PI. Col. 227. fig. 3 ; Pelzeln, Orn. Bras. p. 36. Supra murino-fusca unicolor : alis extus et cauda (luridiore) rufis: subtus cinerea, lateribus et crisso fuscescentibus ; gulee plumis ad basin nigris, ad apicem albescentibus: long, tota 5' 1, alee 2*1, caudce 2*6. |