3 16 Eleventh Supplement to A. O. U. Check-List. ya 
I. ADDITIONS TO THE CHECK-LIST AND ACCEPTED 
CHANGES IN NOMENCLATURE. 
9 
3a. Fratercula arctica glacialis (Temm.). This becomes 
Fratercula arctica naumanni Norron. 
fratercula arctica naumannt NORTON, Proc. Portland Soc. 
Nat. Hist. II, May, 1901, 144. 
fratercula glacialis (TeEmMM. Man. d’Orn, II, 1820, 933) was 
originally given exclusively to the American bird recog- 
nized in the Check-List as /ratercula arctica, and not to 
the bird which has been commonly known under that 
name, which latter has been properly renamed (cf Nor- 
TON, /. ¢.) F. arctica naumanni. 
5la. Larus argentatus smithsonianus (Cours). This is to 
be eliminated from the Check-List as not satisfactorily dis- 
tinguishable from Larus argentatus. Cf KnicuT, Auk, XVII, 
Jan. 1900, 63; Dwicnt, zbzd. XVIII, Jan. 1901, 58-61; 
ALLEN, 267d. XIX, July, 1902, 283. 
92. Puffinus auduboni Finscu. An earlier name (cf RILEY, 
Auk, XIX, April, 1902, 195) renders necessary the following 
change 
92. Puffinus lherminieri Lesson. 
Puffinus therminieri LESSON, Rev. Zool. April, 1839, 102. 
153¢. Anas obscura rubripes Brewst. 
Red-legged Black Duck. 
Anas obscura rubripes Brewst. Auk, XIX, April, 1902, 184. 
[B 577, part, C 489, part, R 602, part, C 708, part. | 
Geoc. Disr.— Atlantic Coast, during migration, from New- 
foundland to Virginia, and west to Arkansas; breeding range 
not definitely known, but includes northern Labrador and Hudson 
Bay region. 
