58 HEUGLIN'S HE BEING GULL. 



PALMIPEDES. 



Family LARIDu^E. f Bonaparte.) 



Genus Larus. {LinncBus.) 



Generic Characters. — Beak long or middle-sized, strong, hard, compressed, 

 with cutting edges, curved towards the point, the inferior mandible forming 

 a projecting angle. Nostrils lateral, in the middle of the beak, split longi- 

 tudinally, narrow, pierced from side to side. Feet slender; naked above 

 the knee ; tarsi long; three toes in front, entirely webbed ; the hind toe free, 

 short, and articulated very high on the tarsus. Tail with quills of equal 

 length. Wings long, the first primary a little longer than the second. 



HEUGLIN'S HERRING GULL. 



Larus Heuglini. 



Larus Heuglini, Bree. 



" cacch-inans, Pallas. Heuglin ; Vogel Nord Ost Africas, 



No. 892. 

 " " LiCHTENSTEiN. Gray; Hand List, p. 379. 



" " Swinhoe; Ibis, 1870, p. 366.? 



" " Meves; Oefv. K. Kat. Ak. Forh. 1871, p. 786. 



" " Bruch; Cab. Journal, 1853, p. 100. 



" " Brehm; Cab. Journal, 1854, p. 45. 



" " Homeyer; Cab. Journal, i87o.> 



" " Schlegel; Rev. Crit. p. 124.? 



" " Muhle; Griechenlands, No. 301. 



" " Lindermayer; Griechenlands, p. 176. 



" argentatus, Middendorff. Keys, et Blas. 



" " Radde, partim. 



" horealis, Partim. Bonaparte; Conspect. p. 219. 



" epar gyrus, Partim. Lichtenstein; Mus. Berol., (Cab. 



in lit.) 

 " occidenialis, Partim. Blasius; Cab. Journ., 1865. 



leucophceus, Heuglin; {nee Light.) Ibis, 1859, P- 349; 



Faun. Roth. Meer., No. 298. 



Peterm. Geogr. Mitth., 1869, p. 408. 

 " " Hartlaub and Finsch; O. Afr., p. 818. 



" angustatus, Lefeb.; Abyss. Ois., p. 173. 



