410 AVES. 







ter on a vcsself it may be considered as the forerunner of a 



hurricane.(l) 



We separate, with Brisson, under the name of 



PUFFINUS, 



Or Puffins, those in which the end of the lower mandible is 



curved downwards along with that of the upper one, and in which 



the nostrils, although tubular, do not open by one common orifice, 



but by two distinct holes. Their bill also is proportionally longer. 



Proc. puffinus, Gm.; Puffin cendre, Enl. 962. Cinereous 



abovej whitish beneathj wings and tail blackish: the young is 



darker. Its size is that of a Crow. Very common in almost 



every sea. (2) 



There is a species, long confounded with the preceding one, 

 which is not larger than a Woodcock, and which breeds in im- 

 mense numbers on the northern coasts of Scotland and the neigh- 

 bouring islands, whose inhabitants salt them for their winter 

 provision. It is black above and white underneath, the Procd- 

 laria ^ngloriim, Tern. Edw. , 359. 

 Navigators occasionally speak of some birds of the Antarctic seas 

 by the name of Petrels, which may constitute two separate genera. 

 They are the 



Pelecanoides, Lacep. Halodroma, lUig., 



Which have the bill and figure of the Petrels, with a dilatable 

 throat like that of the Cormorant, and are without the vestige of a 

 thumb like the Albatross. Such is Procellaria urinatrix, Gm. 



Paghyptila, Illig. 



Or the Prions, Lacep., which, similar in other respects to the 

 Petrels, have separate nostrils like a Puffin, the bill widened at 

 base, and its edges furnished internally with very delicate, vertical 

 and pointed laminse, analogous to those of Ducke. Such are the 

 Blue Petrels, Proc. vittata and cserulea, Forst. 



(1) The fig. Enl. 933 is a closely allied species of the South Seas {Proc. ocean- 

 ica, Forst.) Add Proc. LeacUi, Tem. Act. de phil., VI, pi. 9, f. l\Proc. Wil- 

 smii, Ch. Bonap.; Wils. VII, Ixx, 6, Id. Act. de phil. VI, pi. 9, f. 2; Proc. fre- 

 gutta. Lath., llochef., Antill., p. 152; Proc. marina, Vieill. Gal. 292. 



(2)4^Add Proc. ohscura, Vieill. Gal. 301; and Proc. padfica, or fuliginosui 

 White, 252, which perhaps does not differ from the Proc. sequinoctialis, Edw., 89. 



