The terrestrial mammals and birds of North-East Greenland. 125 



be somewhat smaller than the pale birds from the Atlantic. Un- 

 fortunately I am prevented from securing the bird. I saw this 

 forenoon a t3'pical dark Fulmar. 



My notes from the voyage homewards correspond exactly to 

 what is said above, and thus confirm my supposition, that this 

 species appears in two forms a southern pale form and a northern 

 dark one; there may be a few^ deviations from the rule and perhaps 

 smooth transitions from pale to dark. 



I therefore find it unnecessary to cite the notes from the voyage 

 homewards also. 



Judging from birds examined, I think that in the dark form 

 the bill is as a rule shorter and more slender than in the pale. 

 This can especially be said of the hook of the bill, w^hich — as 

 other parts of the bill — is also paler contoured than in the pale 

 form. The dark spot before the eye exists in both forms. The 

 total size of the birds differs so much in both forms, that no fixed 

 difference can be stated in this respect. 



It may be supposed, that pairing between pale and dark Ful- 

 mars takes place. The fact, that at Mallemukfjeldet, wehere the one 

 form so decidedly predominated, birds of the other form w^ere also 

 seen, only confirms the above mentioned supposition. 



For the zoological museum in Copenhagen were collected the 

 skins of 6 Fulmars, on which the following measurements have 

 been taken. 



Sex Age Colour Date Locality Wing Bill Tarsus 



mm. mm. mm. 



c? ad. pale ^i/^ 06 The pack-ice. Lat. 75" n. long. 8" w. 303 42 55 



c? - — 31/^06 — 307 39 55 



c? - — -^^/7 06 — In moult 41 52 



? - medium coloured ^^/т 06 The northern Sea 307 36 49 



? - dark •■'1/7 06 The pack-ice. Lat. 75° n. long. 8= w. 315 36 50 



? - — 31/.^ 06 — 315 33 50 



Ringed Plover. Ægialitis hiaticula L. 



The Ringed Plover occurs more commonl}' than any other 

 лvader and is — with exception of the Snow-Bunting — the most 

 frequently occurring bird in N. E. Greenland. 



