CXCVlll 
APPENDIX. 
This description includes all the specimens which have been examined, 
of both Scotch and Arctic birds ; it agrees also with the account in Montagu 
of the individuals which had come under his notice from Norway and Scot- 
land ; but it does not agree with the specific character of the Lagopus given 
by Temminck “ dioc-huit pennes dla queue, of which the two middlemost are de- 
scribed as changing from season ; nor does it precisely with Fabricius’ descrip- 
tion of his Greenland Lagopus in the Faun. Green. No. 80., where the interme- 
diate and incumbent feathers are to be stated four instead of two ; the number 
of the true tail feathers, however, corresponding with the present description. 
After a very careful examination of the accounts which these authors have 
given of the birds which they have respectively designated as T. Lagopus, 
it appears by no means decided to which species they refer, whether to the 
present or to the preceding ; the “ dorsum et uropygium nigro cinerascentique 
undulata,” would seem to refer Fabricius’ to the present species ; whereas 
the description of both sexes in the summer plumage in Temminck’s second 
edition very nearly accords with the birds which were obtained in Melville 
Island, and which are here considered the Rupestris ; this opinion is consi- 
derably strengthened by the comparison of a specimen recently received 
from Mr. Temminck, as his European T. Lagopus, with the Melville Island 
birds, wherein no other difference is perceptible, than that the reddish- 
yellow markings are rather more vivid and predominant in the European 
specimen. 
The males average fifteen inches, the females fourteen inches in length. 
The Tetrao Salicetti of Temminck (Albus of Gmelin and other authors) is 
distinguishable from either of the species which have been now described, 1st. 
by its superiority in size ; 2d, by the shape of the bill and claws, and by the 
colour of the latter, which is white in the Salicetti, and dark, approaching 
to black, in the Lagopus and Rupestris ; 3dly, by the absence of the black 
line through the eye in the male ; 4thly, by the general colour of the summer’s 
plumage, which is deep orange in the Salicetti, crossed by narrow and 
waving black bars and spots on the back, and pure on the breast. 
