354 



6 

 In the preparation of the above article I have examined the following specimens : — 



E Mus. H. E. Dresser. 



a, ad. Spitsbergen, summer of 1870. b, ad. Egedesminde, N. Greenland (A. Benzori). c,juv. Egedesminde 

 (Erichsen). d,juv. Greenland (Dr. O. Finsch). 



JS Mus, Howard Saunders, 

 a,juv. Egedesminde, 1866, 



