ALQEBIAN CINEREOUS SHEABWATEB. 



PALMIPEDES. 

 . . Family PROCELLARIID^. (Bonaparte.) 



Genus PuFFiNUS. {Bi^isson.) 



Generic Characters.— J^Q^k. as long, or longer than the head, slender, 

 straight, depressed at its base, very compressed and hooked at its 

 extremity; inferior mandible pointed, and curved at its point like the 

 superior; nostrils basal, oval, opening by two distinct tubes; legs middle 

 sized, almost in the centre of gravity of the body; a small space above the 

 knee naked ; tarsi compressed and reticulated ; feet webbed ; hind toe 

 replaced by a very sharp claw. Wings long, the first primary the longest; 

 tail round or conic, and composed of twelve quills. 



ALGERIAN 

 CINEREOUS SHEARWATER. 



JPwffinus cinereus. 



Puffinus cinereus, Cuvier, nee Gmelin. 



Nedris cinerea, Keyserling and Blasius. 



Puffinus kuhlii, Bote; Isis, 1835, p. 257. 



Procellaria piiffinus, Temminck; Manuel, 2nd. Edition, 1820, 



and Puffinus cinereus, Man., 1840. 



Puffin cendre. Of the French. 



Grauer Puffin, Of the Germans. 



Specific Characters. — Upper plumage dark brown; lower plumage pure 

 white, with the sides of the neck mottled with grey brown; upper tail 

 coverts light brown, tipped with mottled grey. Length nineteen inches; 

 carpus to tip thirteen inches and a half; beak from gape two inches and 

 a half; depth at base, including nostrils, three quarters of an inch, in 

 middle seven lines; tarsus two inches and a fifth; middle toe two inches 

 and seven tenths. 



