VERTEBRATE ANIMALS OF SOUTH CAROLINA. 233 



BONAPARTE'S GULL. Larus philadelpMse, (Ord) Gray. 



BULL-BILLED TERN ; MARSH T1<:rn. Sterna anglica, Montag. 



COMMON TERN. Sterna fluviatilis, Namnann. 



FOSTER'S TERN. Sterna forsteri, Nuttall. 



CABOT'S TERN. Sterna cantiaca acuflavida, (Cabot) Ridgway. 



ROYAL TERN. Sterna regia, Gambel. 



ROSEATE TERN. Sterna dougalli, Montague. 



LEAST TERN. Sterna antillarum, (Lesson) Cones. 



BLACK TERN. Hydrochelidon lariformis surinamensis, (Gmelin) Ridgway. 



PROCELLARIID^. 



GREATER SHEARWATER. Puffinus major, Faber. 



DUSKY SHEARWATER. Puffinus audubonii, Finscb. 

 ? BLACK-CAPPED PETREL. (Estrelata haesitata, (Temm.) Coues. 

 ? MOTHER GARY'S CHICKEN ; STORMY PETREL. Procellaria pelagica, Linne. 



WILSON'S PETREL. Oceanites oceanica, (Kubl) Coues. • 



ORDER PYGOPODES. DIVING BIRDS. 



Birds with veiy short wings and pahnate or lobate feet. External por- 

 tion of the body legs very short, causing awkwardness in terrestrial pro- 

 gression. Bill horny, variously serrate or lamellate. 



Strictly American birds. Noted for their powers in diving and lack of 

 proficiency in flight. About twenty-one species are recognized. One 

 member of this group, the Great Auk, Alca impeniiis, has been exterminated 

 within a century. Purely marine and mostly arctic birds. 



PODICIPITID^. 



AMERICAN RED NECKED GREBE. Podiceps holbolli, Reinhardt. 



HORNED GREBE. Dytes auritus, (Linne) Ridgway. 



THICK-BILLED GREBE ; DABCHICK. Podilymbus podiceps, (Linne) Lawrence. 



COLYMBIDiE. 



LOON. Oolymbus torquatus, Brunn. 



RED-THROATED DIVER. Colymbus septentrionalis, Linne. 



BLACK-THROATED DIVER. Colymbus arcticus, Linn6. 



