410 AVES. 
ter on a vessel, it may be considered ‘as the forerunner of a 
hurricane.(1) 
We separate, with Brisson, under the name of 
PuFFINUS, t 
Or Puffins, those in which the end of the lower ngage 
curved downwards along with that of the upper one, and i 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 cendré, Enl. 962. Cinereous 
above; whitish beneath; wings and tail blackish: the young is 
darker. Its size is that of a Crow. Very common in almost. 
every sea.(2) ° uf 
There is a species, long cauifauoae’ with the preceding one, 
which is not larger than a Woodcock, and which breeds in im+ 
mense numbers on thenorthern coasts of Scotland and the neigh- 
bouring islands, whose inhabitants salt them for their winter 
provision. It is black above and white underneath, the Procel- 
laria Anglorum, Tem. Edw., 359. 7 
Navigators occasionally speak of some birds of the Antarctic seas — 
by the name of Petrels, which a constitute two separate genera. 
They are the . 
PreLecanorvEs, Lacep.—Hatoproma, Illig., *. 
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 urinatriz, Gm. 
PacuyrTiLa, 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 laminz, analogous to those of Ducks. Such are the 
Blue Petrels, Proc. vittata and czrulea, Forst. 
(1) The fig. Enl. 933 is a closely allied species of the South Seas (Proc. ocean- 
ica, Forst.)—Add Proc. Leachii, Tem. Act. de phil., VI, pl. 9, f. 1;—Proc. Wil- 
sonii, Ch. Bonap.; Wils. VII, lxx, 6, Id. Act. de phil. VI, pl. 9, f. 2;— Proc, fre 
gatta, Lath., Rochef., Antill., p. 1525 ;—Proc. marina, Vieill. Gal. 292. : 
(2) Add Proc. obscura, Vieill. Gal. 301;—and Proc. pacifica, or uliginosa, 
White, 252, which perhaps does not differ from the Proc. xquinoctialis, Edw., 89. — 
