300 Fifteenth Supplement to the A. 0. U. Cheek-List. [£j£ 



644. Vermivora virginiae (Baird). 



645. Vermivora rubricapilla (Wilson). 



645a. Vermivora rubricapilla gutturalis (Ridgway). 



646. Vermivora celata (Say). 



646a. Vermivora celata lutescens (Ridgway). 

 6466. Vermivora celata sordida (C. H. Townsend). 



647. Vermivora peregrina (Wilson). 



662. Dendroica blackburniae (Gmelin). This is changed to 

 662. Dendroica fusca (P. L. S. Muller). 



Motacilla fusca Muller, Natursyst. Suppl., 1776, 175. (Cf. 

 Berlepsch, Xovit. Zool., XV, 1908, 315.) 

 This change is made necessary by reason of Motacilla fusca 

 Muller having priority over M. blackburnioe Gmelin. 



IV. PROPOSED ADDITIONS AND CHANGES NOT 



ACCEPTED. 



Plautus 1 vs. Alca. 



Thalasseus vs. Hydroprognc. 



Actochelidon vs. Thalasseus. 



Fulmarus vs. Rhantistes. 



Herodias vs. Leucophoyx. 



Lophortyx catalinensis Grinnell, Auk, XXIII, 1906, 262. Re- 

 considered and again found not entitled to recognition. 



Chaemepelia vs. Columbina. 



Catharista vs. ? 



Urubitinga vs. Morphnus. 



Speotyto cunicularia becki Rothschild & Hartert, Nov. Zool., 

 IX, 1902, 405. The Guadaloupe Island form is too slightly 

 differentiated to warrant recognition. 



Ceryle vs. Alcedo. 



Picoides americanus fumi pectus Grinnell, Univ. Calif. Pub. Zool., 

 V, 1909, 217. The single known specimen considered as not a 

 satisfactory basis for the admission of this form. 



Otocoris alpestris enertera Oberholser, Proc. Biol. Soc. Wash., 

 XX, 1907, 41. Regarded as too close to O. a. pallida. 



1 In reference to the generic cases here listed see arttea, p. 295. 



