ClafsII. BLACK TOED GULL. 419 



tab. 13. torn. vi. to which he has given the fynonym 

 of Mr. Edwards's arctic bird, feems to be the very 

 fame which we have here defcribed. 



III. The BLACK TOED GULL. Tab. n. 



Cepphus. Aldr. a<v. ill - 38. vol. 52. 135. 



Wil.orn. y\. Cathara&a Cepphus, Strand-hoeg. 



Raii fyn. a<u. 129. Brunnich. ornitb. 126. 



The Cepphus. Phil. Tranfa3. 



^"y^HIS fpecies weighs eleven ounces : its length is D e f cr . 



* fifteen inches : its breadth thirty-nine : the bill 

 is one inch and a half long, the upper part covered 

 with a brown cere : the noftrils like thofe of the 

 former •, the end black and crooked. The feathers of 

 the forehead come pretty low on the bill : the head 

 and neck are of a dirty white : the hind part of the 

 latter plain, the reft marked with oblongdusky fpots. 

 The bread and belly are white, croiTed with numerous 

 dusky and yellowifh lines : the feathers on the fides 

 and the vent, are barred tranfverfely with black and 

 white : the back, fcapulars, coverts of the wings and 

 tail, are black, beautifully edged with white or pale 

 ruft color ■ the (hafts and tips of the quil- feathers 

 are white : the exterior web, and upper half of the in- 

 terior web black, but the lower part of the latter 

 white: the tail confifts of twelve black feathers tipt 

 with white % the two middle of which, are near an 

 inch longer than the others : the fhafts are white ; 

 and the exterior webs of the outmo/i feather is (potted 



with 



