PPJOCKLLA. — PRION. 
pileata Blytii, Jouni. as. Soc. Bengal 1842. XI. 204. = Timalla gularis 
HOKSF. 
piilchella RÜPPELL, Zool. Atlas Tf. 35. = Dnjmoeca imlchella Rüpp. 
rufescens Blyïii, Jouni. as. Soc. Bengal 1847. XVI. 456. = Orlhoiomus 
gracilis, 
rufifrons Franklin, Proc. Zool. Soc. 1831. 19. — Drymoeca RUppelli Fjlytii. 
rufifrons Rüppell, neue Wirbeltli. Fauna Abyss. 112. = Drymoeca mjifrons 
RÜPP. 
rufula Godwin Austen, Proc. Zool. Soc. 1874. 47. = Orthotomus rufulus. 
socialis Sykes, Proc. Zool. Soc. 1832. II. 89. = Orthotomus socialis. 
sonitans Swiniioe, Ibis 1860. II. 50. Orthotomus sonitans. 
Stewart! Blyïii, Journ. as. Soc. Bengal 1847. XVI. 455. ~ Orthotomus 
socialis. 
striata Swinhoe, Journ. NChina Branch, as. Soc. Mai 1860. = Orthotomus 
striatus. 
Strickland! Bonaparte, Conspect. Avium I. 284. = Drymoeca olivacea. 
striolata v. Pelzeln, Wien. Sitzgsber. 1857. XXIV. 369. = Drymoeca strio- 
lata Pelz. 
sylvatica Jerdon, Madras Journ. XI. 4. = Drymoeca neglecta Blytii. 
PRIOCELLA (Procellariidae) IIombron et Jacquinot, Compt. rend. 1844. XVIII. 
357. — Pro cellar ia Lin. 
Ce sousgenre est le passage des Prions aux vrais Petrels. Avec la forme 
du bec de ces dernières, il présente encore des lames mais très affaiblies. Dents 
longues, minces, tranchantes. Bord inférieur large, obtuse. 
Garnoti Hombron et Jacquinot, Voy. Pol. Sud ïb. 32. — Procellaria Smitki 
Sciileo. 
PRIOFINUS (Procellariidae) Hombron et Jacquinot, Compt. rend. 1844. XVIII. 
355. = Procellaria Lin. 
Bec de la même longeur que dans le sousgenre Pufûnus, mais plus gros, 
plus solidement articulé à sutures plus apparentes. Les narines regardent en 
avant et s'ouvrent dans un véritable tube nasal, qui fait a la base du bec une 
forte saillie. Le palais presante trois rangées de papilles, une médiane, dans 
toute la longeur du bec, et deux laterales. 
aequinoctialis Hombron et Jacquinot, Compt. rend. 1844. XVIII. 355. = 
Procellaria aequinoctialis Lin. 
brevicaudus Hombron et Jacquinot, Compt. rend. 1844. XVIII. 355. — Pro- 
cellaria brevicauda. 
carneipes Hombron et Jacquinot, Compt. rend. 1844. XVIII. 355. — Pro- 
cellaria carneipes Sciileg. 
cinereus Hombron et Jacquinot, Compt. rend. 1844. XVIII. 355. — Pro- 
cellaria mollis Gould. , 
PRION (Procellariidae) Lacépi^de, Mem. L'Institut 1800. 513. — Gray, Genera 
Birds 1844. HL 649. — Coues, Proc. acad. Philadelphia 1866. 167. = Pro- 
cellaria LiN. 
Bill the length of the head, very broad as the base, depressed above; culmen 
nearly straight, laterally swollen, but gradually compressed towards the tip, which 
is arched, elevated, compressed and acute; the lateral margins dilated near the 
base, with a series of very fine laminae running along the whole length internally 
rather above the margin; the lower mandible broad at the base, gradually com- 
pressed towards the tip, which is much compressed, with the margin and gonys 
arched; the nostrils basal, tubular, elevated above the culmen, short, opening with 
two aperture in front. Wings moderate, pointed, with the first quill nearly equally 
the second, which is the longest. Tail moderate, broad and rounded at the end. 
Tarsi shorter than the middle toe, laterally compressed and covered with small 
scales. The outer toe nearly as long as the middle, and the hind toe nearly in 
the form of a broad, short, pointed claw. 
