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XLIIo — Description of a New Species of 
Lams» 
By Thomas Stewart Traill, M.D. F.R.aE. &c. 
(Read 8th February/ 1823.) 
Larus Scoresbii, Scoreshy's Gull 
Char, specific. Larus rostrojbrtiy sanguineo ; cruris 
bus pedibusque ejusdem coloris ; capite, collo, partU 
husque imis dilute canescentibus ; alis nigricantibus ; 
Cauda aquali, alba. 
Gull with bill strong; and of a vermilionyred ; legs and 
feet of the same colour ; head, neclc, and lower parts 
pale ash-grey ; wings blacJcish ; tail even, white. 
This bird, which is now in the Museum of the Liver- 
pool Royal Institution, appears to be a non-descript species, 
of which the characters are extremely well marked, while 
it has no indication of being a gull in imperfect plumage. 
It is said to frequent the frozen regions of the Southern 
Ocean ; and I have named it in honour of the celebrated 
navigator of the Icy Seas. 
