476 GULLS AND ALLIED SPECIES. 



and a third in length, black ; tarsus an inch and a third ; 

 wings an inch and two-thirds longer than the tail, which is 

 even at the end. In summer, the head and throat greyish- 

 black. 



6. Gavia minuta. Little Mete. Bill scarcely an inch in 

 length, black ; tarsus an inch long ; Avings three-fourths of an 

 inch longer than the tail, which is slightly rounded. In 

 summer, the head and upper part of the neck all round grey- 

 ish-black. 



GENUS VI. RHODOSTETHIA. ROSY-GULL. 



Bill short, rather slender, compressed; upper mandible 

 with the dorsal line arcuato-decurvate toward the narrow tip ; 

 lower mandible with the angle slight, the dorsal line concave, 

 the tip small ; legs short ; bare part of tibia very small ; 

 tarsus rather stout, anteriorly scutellate, rough behind ; first 

 toe short, with a large curved claw ; fore toes moderate ; in- 

 terdigital membranes entire ; claws rather large, arched, com- 

 pressed, acute ; wings long, rather narrow, pointed ; tail 

 cuneate. 



1. Hhodostethia Rossii. Ross's Rosy-Gvll. The only 

 species. Bill black ; feet vermilion ', fore part of back and 

 both surfaces of wings pale bluish-grey ; lower parts white, 

 tinged with rose-colour. 



