BRITISH BIRDS. 51 



Fulmarus Glacialis, Steph. Petrel Fulmar, Temm. Petrel 

 de 1'isle de St. Kilda, Buff. Northern Fulmar, Shaw. Ful- 

 mar Petrel, Temm. Lath. Mont. Fulmar, Bewick. 



SUB GENUS 3. THALASSIDROMA. Leach. 



Sp. 1. T. PELAGICA. Linnceus. 



Syn. Procellaria Pelagica, Linn. Gmel. Briss. Lath. Petrel Tern- 

 pete, Temm. Oiseau de Tempete, Buff. The Stormy Petrel, 

 Penn. Lath. Edw. Mont. Bewick. 



Sp. 2. T. BULLOCKII. Fleming. 



Syn. Thalassidroma Bullockii, Selby. Procellaria Bullockii, Flem. 

 T. Leachii, Temm. Shaw. Petrel de Leach, Temm. An 

 undescribed Petrel, with a forked tail, taken at St. Kilda, 

 Bullock's Sale Catalogue. Fork-tailed Storm Petrel, Selby. 

 The Fork-tailed Petrel, Bewick. 



GENUS 8. LESTRIS. Temminck. 

 Sp. 1. L. CATARACTES. Linnceus. 



Syn. Larus Cataractes, Linn. Lath. Gmel. Lestris Cataractes, 



Temm. Cataractes, et Catharacta, Will. Ray. Stercoraire 



Cataracte, Penn. Le Groeland Brun, Buff. Skua Gull, 

 Lath. Mont. Penn. Bewick. 



Sp. 2. L. STRIATUS. Brisson. 



Syn. Stercorarius Striatus, Briss. Lestris Pomarinus, Temm. Ca- 

 taractes Pomarinus, Shaw. Stercoraire Pomarin, Temm. 

 Pomarine Skua, Shaw, Eyton. 



Sp. 3. L. RICHARDSON ii. Swainson. 



Syn. Lestris Richardsonii, Swain. Faun. Bo. Amer. Arctic Gull, 

 Bewick. (Black-toed Gull, probably the young.) 



