57^ CLASS AVES. 



L. Dominicanus, Licht. Grande 

 Mouette, Azara, n. 409. 



Like L. Fuscus ; bill, stronger, higher; tip, more 

 curved ; back, when adult, black ; length, two feet ; 

 Shores of Brazils. 



L. Mamdipennis, Licht. Mouette 

 Cendree, Azara. n. 410. 



Like L. Ridibundus ; wing with a broad black band, 

 beneath, base, and inner web of the first six primaries, 

 black, with an elliptical white spot near the tip ; 

 bill and feet, red. Length, 15 to 18 inches ; when 

 young, outer-quill, quite black, with a lanceolate-white 

 spot. 



L. HcEmatorhynchiis, Licht. 



Lead-coloured grey ; middle of back and wings, 

 black ; wings, white marked ; bill and feet, blood- 

 red. Length, 18 inches. 



L. Andouinii, Bull. Sci. Nat. xi. 302. 

 PI. col. t. 480. 



Head, neck, chesty sides, belly, rump, and tail, white; 

 back, scapulars, and wing-coverts, black ; bill, red, 

 with two black cross rays; eyelids, golden; feet, black. 

 Sardinia. 



L. Rosens^ Macgillevray, Jard. 

 Illust. Zool. t. 



Back and quills, pale-grey ; head, chest, and abdomen, 

 pale rose-red ; neck, with a black ring ; two middle 

 . tail-feathers longer than the rest. North Ocean. 

 Length, 14 inches. 



