ORDER LONGIPENNES. 13 



33. Plautus impennis (LINN.). 



Great Auk. 



Alca impennis LINN. S. N. ed. 10, I. 1758, 130. 

 Plautus impennis STEENSTR. Vid. Med. Nat. For. Kj0b. 1855, 

 114. 



[B 710, C 615, R 741, C 878.] 



GEOG. DIST. Formerly the coasts and islands of the North 

 Atlantic, from Massachusetts and Ireland northward nearly to the 

 Arctic Circle. Now extinct. 



SUBFAMILY ALLLNJE. DOVEKIES. 



GENUS ALLE LINK. 



Alle LINK, Beschr. Nat. Samml. Univ. Rostock, I. 1806, 17. 

 Type, Alca alle LINN. 



34. Alle alle (LINN.). 



Dovekie. 



Alca alle LINN. S. N. ed. 10, I. 1758, 131. 



Alle alle STEJNEGER, Stand. Nat. Hist. IV, 1885, 69. 



[B 738, C 626, R 752, C 863.] 



GEOG. DIST. Coasts and islands of the North Atlantic and eastern 

 Arctic Oceans ; in North America south in winter to New Jersey ; 

 breeds in high northern latitudes. Accidental in Michigan. 



ORDER LONGIPENNES. LONG-WINGED 

 SWIMMERS. 



FAMILY STERCORARIID-ffi. SKUAS AND JAEGERS. 



GENUS MEGALESTRIS BONAPARTE. 



Megalestris BONAP. Cat. Parzudaki, 1856, n. Type, Catharacta 

 skua BRUNN. 



