132 On Tetrao urogallus cmd its Allies. 



very distinctly barred on tlie under surface. Having 

 carefully considered the question, I am of the opinion that 

 these characters are sufficiently pronounced to warrant the 

 bird's recognition as a new sub-species. I therefore propose 

 to name it : — 



Tetrao urogallus aquitanicus, subsp. n. 



Habitat. The Pyrenees and perhaps the Cantabrian 

 Mountains, at elevations of probably not less than 4,500 ft. 

 above sea-level. 



The types of the subspecies are a male from Vallee de 

 Latour, Htes. Pyr., May 20, 1913, and a female from 

 Pic de Gaube, Htes. Pyr., October 10, 1912, both in my 

 collection. 



The males, although some are inclined to be on the dark 

 side, differ chiefly by their diminutive size, as the following 

 wing-measurements show, the average length in six speci- 

 mens being only 360*7 mm., which is 25 '6 mm. less than in 

 the average typical bird. 



Wing, 

 c? ad. Vallee de Latour, Htes. Pyr., 2,000 m., May 20, 1913. 



(lugram Coll.) 367 mm. 



(S ad. Sapiniere de Culavus, Htes. Pyr., 1 ,600 m., May 1906. 



(Tring Museum) 368 mm. 



c? ad. Valine de Latour, Htes. Pyr., May 3, 1905. (Tring 



Museum) 348 mm. 



cT ad. Ax-les-Thermes, Ariege, May 27, 1896. (British 



Mus.) 345 mm. 



J ad. Luchon, Hte. Garonne, May 15, 1876. (Marmottan 



Coll.) 370 mm. 



J ad. Luz, Htes. Pyr., Feb. 8, 1870. (British Mus.) 366 mm. 



{Nute. — Dr. Bureau says that the wing of the only 

 Pyrenean specimen in the Nantes Museum measures 385 

 mm., but as I have not measured this bird myself, I have 

 purposely omitted it from the above list.) 



The females are proportionally just as small as the males, 

 but apart from this they differ appreciably in the coloration 

 of their plumage. This is especially marked when one 

 compares them with the more northern examples of T. u. 

 urogallus, while of course it is still more emphasized when 



