iS,S4.| STKjNKtJEK, AiKilcclit OniilliDloiiica. I'll 



remarks that it, besides being preoccupied in botany, is also used 

 in entomology. Its use in the hitter connection is of very recent 

 (hite, however, and cannot prejudice its use in ornithoh)gv. being 

 j^roposed by Clemens in 1864 (Proc. Philad. Entom. vSoc, II, 

 1S64, p. 42S) for a lepidopterous insect. 



The name Wilsonia was given by Bonaparte in 1838 (Comp. 

 List., p. 33) as a generic term ("Genus 108, Wilsonia, 

 Nob."), and in this genus he included the following species, thus 

 named : — 



138. Wilsonia niitrata^ Nob., 



139. Wilsonia bonapartii^ Nob., 

 T40. Wilsonia minitta., Nob., 

 141. Wilsonia pusilla^ Nob. ; 



these being exactly the same four species which at the present 

 date are admitted into the genus. If the name Wilsonia cannot 

 be rejected, because preoccupied in botau} , it will have to take 

 precedence oi Myiodioctes Audub., 1839. 



VIII. Larits schistisagits^ A New Species of Gull from 

 THE North Pacific. 



Among the specimens of Gulls collected by me on the Com- 

 mander Islands is a very dark-mantled large species, somewhat 

 intermediate between L. mai-inus and L. cackinnans, although 

 in general aspect much nearer to the former, and when on the 

 wing indistinguishable from it. 



The occurrence of this new species in the Kamtschatkan waters 

 easil}' explains the abnormality in the alleged distribution of /.ar?/5 

 marinjts^ as it is almost certain that all North Pacific references 

 to the latter species really belong to the present form. 



Larus schistisagus n. sp. 



DiAGN. — White: mantle dark bluish slate-gray. First primary with a 

 long white tip, apical and subapical spots being fused together, and a gray 

 'wedge' on the inner web ; second with a subapical white spot on the inner 

 web only, and the gray wedge reaching further down towards the tip; 

 third with the wedge reaching the white subapical spot; no gray wedge 

 on outer web of the four first primaries. Feet pinkish flesh-color. Total 

 length, 670 mm., wing, 460 mm. 



