Vol. XVII 
1900 
Banos, The American Three-toed Woodpeckers. I 29 
Ficus hirsutus Vieill., Ois. de ’Am., II, p. 68, pl. 124, 1807 
(Zridactylia hirsuta Steph., Shaw’s Gen. Zool., IX, p. 219, pl. 
XXXVill, 1815), in part refers to an American form, though the 
figures and descriptions were evidently taken from an Old 
World specimen. This name has been used for an American 
bird by Wagler, Audubon, De Kay and others. 
The form found in the southern Rocky Mountains stands as 
usually given — P. americanus dorsalis —though its northward 
range, as usually given, should be somewhat curtailed. It was 
described by Baird as Picotdes dorsalis (B. N. A., p. 100, 1858), 
from Laramie Peak, Wyoming. 
MATERIAL. 
Dr. Robert Ridgway has kindly sent me all the skins of P. 
americanus contained in the National Museum from points in 
Alaska and the Northwest Territory, including the types of P. 
americanus fasciatus Baird and PL. ¢tridactylus alascensis Nelson ; 
the series numbering 37 skins and fully proving that true amer?- 
canus, fasciatus and alascensis are all the same. 
I have also examined the large series of P%codes in Mr. Wil- 
liam Brewster’s collection, and a few skins in the collection of 
the Museum of Comparative Zoology at Cambridge. These, 
with the material in my brother’s and my collection, and a series 
of specimens from northern Labrador lent me by Mr. J. D. 
Sornborger, makes a fine suite of specimens that leaves little to 
be desired. 
The only region from which I have seen no skins is the cen- 
tral portion of Arctic America, where true 7. americanus and its 
eastern races might be expected to intergrade. 
I have also seen but two examples of P. ¢ridactylus, both 
females; these two, however, are quite enough to show the 
differences between the Old World and the American forms. 
Picoides arcticus arcticus (Szwazuson) . 
Picus (Apternus) arcticus SWAINSON, in Sw. and Rich. F. B. A. II, 
ps 323, plage,.57).2931- 
Picoides arcticus GRAY, Gen. B. IJ, p, 434, 1845. 
Type Locality. — Sources of the Athabasca River, lat. 57°, N. W. T. 
2 
