LARUS. 



95 



59. Larus atricilla. 

 Laughing Gull. 



Larus atriciUa Linn. Svst. Xat. i. p. 136, 1758 (Carolina) ; Quelch, 

 Tiiijehri(2) v. p. 106. 1891 (Georgetown) ; Saunders, Cat. B. Brit. 

 Mus. XXV. p. 194, 1896 (British Guiana) ; Beebe, Our Search for 

 a AVildemess, p. 134, 1910 (Georgetown Harboui') ; Brahoiu-ne 

 & Chubb, B. S. Amer. i. p. 35, no. 343, 1912. 



Xema africiJla Cab. in Schomb. Keis. Guian. iii. p. 761, 1848 (Coast of 

 British Guiana). 



Adult male. Head and throat slate-brown, eyelids above and below 



Fig. 22.— To illustrate the bill with its short gonj.s. 



Fig. 23. -To show the shape of tlie tail, 

 white; back and win;^> dark asli-grey ; tlie four outer i>riinary 



