GEN. 291-295 OF KEY. 107 



563. STERNA GALERICULATA LIGHT. 



legrant Tern. 



564. STERNA CANTIACA Gai. 



Sandwich Tern. 



565. STERNA HIRUNDO L. 

 Common Tern; Sea Swallow. 



566. STERNA FORSTERI NUTT. 



Forster's Tern. 



567. STERNA MACROURA NAUMANN. 



Arctic Tern. 



568. STERNA LONGIPENNIS NORDMANN. 



dike's Tern. 



569. STERNA PARADIS^JA BRUNN. 



Itoseate Tern. 



570. STERNA SUPER CILIARIS V. 



JLea*t Tern. 



[571.] STERNA TRUDEAUI AUD. 

 Tern. 



572. STERNA ALEUTICA BAIRD. 



Aleutian Tern. 



573. STERNA FULIGINOSA GM. 



ooty Tern. 



[574.] STERNA ANOSTH^TA SCOPOLI. 



Tern. 



575. HYDROCHELIDON PISSIPES (L.) GRAY. 



Black Tern. 



576. ANGUS STOLIDUS (L.) LEACH. 



Hoddy Tern. 



577. RHYNCHOPS NIGRA L. 



Black Skimmer. 



