342 Tzvelfth Supplement to the A. O. U. Check-List. [^^"j" 



PicHS torqiiatns Wilson', Amer. Orn., Ill, 1811, 3i,pl. xx, 

 %• 3- 



Asy/iiksf/ius torqnatus CouES, Proc. Acad. Nat. Sci. Phila., 

 1866, 56. 



Subgenus CENTURUS Swainson. This becomes 



Genus CENTURUS Swainson. 



Centiiriis Swainson, Classif. Birds, II, 1837, 310. Type, 

 Picus ca roll II us LiNNiEUS. 



409. Centurus carolinus (Linn^us). 



Picus carolinus Linn.^us, S. N. ed. 10, I, 1758, 113. 

 Centurus carolinus Bonaparte, Geog. & Comp. List, 1838, 40. 



410. Centurus aurifrons (Wagler). 

 Picus aurifrons Wagler, Isis, 1829, 512. 



Centurus aurifrons Lichtenstein, Nomencl. Av., 1854, 76. 



411. Centurus uropygialis Baird. 



Centurus uropygialis Baird, Proc. Acad. Nat. Sci. Phila., 

 1854, 120. 



454^>. Myiarchus cinerascens pertinax (Baird). 

 Lower California Flycatcher. 



Myiarchus pertinax Baird, Proc. Acad. Nat. Sci. Phila., 



1859, zo2>. 

 Myiarchus cinerascens pertinax Brewster, Bull. Mus. Comp. 



Z06I., XLI, 1902, 1 17. 



[B iT,i,part, C 2^^, part, R 313,/'?^'/, C 375, parti] 

 Geog Dist. — Southern Lower California. 

 Subgenus NUTTALLORNIS Ridgway. This becomes 



