20 



Older LAKII<^()J{.M 

 Family LARID/E. 

 Sul.iiuiiily STERNIN^. 



HYDROCHELIDON Boic. 



(Sauiulor^,, Cat. Bds,, XXV. p. 5, 

 1891.) 



leucoptera (Mcisn. d- tScliiii.-) . (p. G.) 



hybrida {Pall.), (p. 10.) 



ES. 



Africa (lointer) 

 Australia New Zealand 



Central and southern Europe to 

 central Asia and China 



Mindanao 



Malay Archipelago 

 Australia Africa 



Southwestern central, and 

 southern Europe to China 



Luzon 

 Mindanao 



Palawan 

 Negros 



STERNA Linn. 



(Saunders, Cat. Eds., XXV, p. ^JO, 

 1896.) 



fluviatilis Naitm. (p. 54.) 



boreotis {Banys) , Bull. Mus. Coinj). Zoo!.. 

 XXXVI, No. 8, 25(i ( 1901 ) . 



anaestheta Heap. (p. ](»1.) 



Countries on both sides of At- 

 lantic Ocean 



Indian and African coasts 

 (icintcr) 



Brazilian coasts (winter) 



Calayan 



Red Sea 



African and Indian Oceans to 



China, Japan, Australia, and 



the Pacific Islands. 



Agutaya 



Balabac 



Bohol 



Calamianes 



Cebu 



Cuyo 



Gulmaras 



Leyte 



Luzon 



Masbate 



Mindanao 



Negros 



Palawan 



Pan ay 



Pata off Sulu 



Romblon 



Samar 



Sibuyan 



Siquijor 



Sulu 



Tablas 



Tawi Tawi 



African and Indian seas to Chi- 

 na, Japan, Moluccas, north- 

 ern Australia, and Pacific 

 Islands. 



(iulf of Me.xico Western Indies 



Panay 



