342 Twelfth Supplement to the A. O. U. Check-List. nate 
Picus torquatus Wiuson, Amer, Orn., III, 1811, 31, pl. xx, 
fig. 3. 
Asyndesmus torqguatus Cours, Proc. Acad, Nat. Sci. Phila., 
18066, BO; 
SurGenus CENTURUS Swainson. ‘This becomes 
GENUS CENTURUS Swainson. 
Centurus Swainson, Classif. Birds, II, 1837, 310. ‘Type, 
Picus carolinus LANNMUS. 
109. Centurus carolinus (LINN ‘«Us). 
Picus carolinus LiNnNaus, S. N. ed. 10, I, 1758, 113. 
Centurus carolinus BONAPARTE, Geog. & Comp. List, 1838, 4o. 
’ 8 , 4 
410. Centurus aurifrons (WAGLER). 
Picus aurifrons WAGLER, Isis, 1829, 512. 
Centurus aurifrons LACATENSTEIN, Nomencl. Av., 1854, 76. 
411. Centurus uropygialis Barn. 
Centurus uropygialis Bairp, Proc. Acad, Nat. Sci. Phila., 
1854, 120. 
154+. Myiarchus cinerascens pertinax (Bairp). 
Lower California Flycatcher. 
Myiarchus pertinax Bairv, Proc. Acad. Nat. Sci. Phila., 
1859, 393: 
Myiarchus cinerascens pertinax BrewsverR, Bull. Mus. Comp. 
ZOO|, slal, 1O02; 117. 
[B 131, part, C 248, part, R 313, part, C 375; part.| 
Groce Disr.— Southern Lower California. 
SupnceNus NUTTALLORNIS Ripoway. ‘This becomes 
