THE GENUS LARUS. 
269 
with yellow tints at the base. Tarsus 2f long, toe Sf, 
yellowish, claws brownish-black. Wings a little longer than 
the tail. Total length 23 inches. The plumage is yellowish- 
grey, marked with longitudinal streaks of pale brown on 
the head and neck, transverse zigzags on the back and 
wings, partly substituted on the tail by irregular spots, and 
wanting on the first five quills, which are whitish. The 
under parts are a confused mixture of ash-grey with pale 
brown and yellowish- white. 
Synonyms Larus argentatus, Captain Sabine, Memoir 
on the Birds of Greenland, Lin. Trans, vol. xii. pt. i. 
p. 546; Temm. Man. d'Orn. pt. ii. p. 764 
Remarks. — I can only refer to the above authors with 
certainty for synonyms. Mr Edmondston, in the Memoirs 
of the Wernerian Society, vol. iv. p. 501, seems to describe 
the present species under .the name of Iceland Gull, and, 
in fact, exhibited the bird supposed above to be the young 
of the first year, as the young of his bird ; which, however, 
differs from mine, and Temminck's and Sabine's Arctic 
varieties, as they consider them, of the Silvery Gull, in 
being much smaller in all its proportions. The specimen 
described above was considered by Mr Score sby as the 
true Burgomaster, and named so by him in his last publi- 
cation ; and it is more than probable that the present spe- 
cies is the Burgomaster of navigators, as well as the Larus 
glaums of Fabricius, Latham, and others. For a fuller 
discussion of this point, I refer to the remarks upon the 
following species. 
Distinctive Characters. — In point of size, as well as in 
regard to proportions, this species is nearly allied to the 
preceding, insomuch that it has been considered by Tem- 
