GEN. 2a 1-295 OP KEY. 107 



563. STEElfA GALERICULATA Licht. 



Xlleg-aiit Tei-n. 



564. STERIfA CAWTIACA Gm. 



Sandwicli Tern. 



565. STERNA HIRUNDO L. 

 Common Tei-n ; Hea Swallow. 



566. STERNA FORSTERI Nutt. 



forster's Tern. 



567. STERNA MACROURA Nadmakn. 



Arctic Tern. 



568. STERNA LONGIPENNIS Noedmann. 



Pike's Tern. 



669. STERNA PARADISiEA Brunn. 



Roseate Tern. 



670. STERNA STJPERCILIARIS V. 



I^east Tern. 



[571.] STERNA TRUDEAUI Aud. 

 Trudeau's Tern. 



572. STERNA ALEITTICA Baikd. 



Aleutian Tern. 



573. STERNA PULIGINOSA Gm. 



Sooty Tern. 



[674.] STERNA ANOSTHiEJTA Scopoli. 

 Bridled Tern. 



575. HYDROCHELIDON PISSIPES (L.) Gbay. 

 Black Tern. 



676. ANGUS STOLIDUS (L.) Leach. 



]!Voddy Tern. 



677. RHTNCHOPS NIGRA L. 



Black Skimlner. 



