[49] D. adelaidæ, Baird, Rev. April, 1865, 212.
[50] D. pityophila, Baird, Rev. 208. (Sylvicola p. Gundl. Ann. N. Y. Lyc. Oct. 1855, 160.)
[51] Dendroica adelaidæ, Baird, Rev. 1865, 212. Hab. Porto Rico.
[52] Geothlypis rostratus, Bryant, Pr. Bost. Soc. N. H. March, 1867, 67, Inagua.
[53] Geothlypis melanops, Baird, Review Am. Birds, I, April, 1865, p. 222.
[54] Geothlypis æquinoctialis (Cabanis), Baird, Rev. I, p. 224. (Motacilla æq. Gmelin, S. N. I, 1788, 972.)
[55] Geothlypis velata (Cabanis), Baird, Rev. I, 223. (Sylvia vel. Vieill. Ois. Am. Sept. II, 1807, 22, pl. lxxiv.)
[56] Geothlypis poliocephala, Baird, Review Am. Birds, I, April, 1865, p. 225.
[57] Geothlypis poliocephala, var. caninucha, Ridgway.
The G. speciosa, Scl. (P. Z. 1858, 447; and Baird, Rev. 1864, p. 223), from Mexico, and G. semiflavus, Scl. (P. Z. S. 1860, 273, 291.—Baird, Rev. I, 1864, 223), from Ecuador, are species allied to G. trichas, and possibly referable to it. The original descriptions afford no tangible distinctive characters. It is barely possible, however, that they are distinct.