ORDER PALMIPEDES. 575 



Silvery Gull, Lath. L. Fuscus, L. Flavipes, Meyer. 

 Frisch. ij. t. 18. Naum. 1st. Ed. f. 51. b. 



Is entirely white, except the mantle, which is black, 

 and the feet yellow. 



PI. Enl. t. 990, according to Temminck. 



Ivory Gull, Lath. L. Eburneus, Gra. Enl. 99"^. 



Entirely white, with black feet. Of Greenland and 

 Spitzbergen, but sometimes travels into Europe. 



The Common Gull, L. Cyanorhynchus, Meyer, 

 Enl. 977- Briss. vj. 16, 2. 



Is in old age of a fine white, with a bright-ash 

 coloured mantle \ the first quills of the wings are in 

 part black, with white spots at the end ; the bill and 

 feet are of lead colour. It lives in a great measure 

 on shell-fish. The Larus Lanus of Gmel. and 

 authors. 



L. Ridihundus, L. Hyhernus, and 

 L. Erythropus, Gm. Enl. 969 and 979. Briss. vj. 

 17. 1. Naum. Vogl. t. 32, f. 44. 



Is similar to the last, except that it has when young 

 the end of the tail black, and black and brown on 

 the wing ; the head of the adult becomes brown in 

 spring, and remains so all the summer. Enl. 970. 

 The bill and feet are more or less red. It is called 

 LaugJmig Gull, from its cry. 



