117 
597. Procellaria coerulea, Gmel. Vol. VII. PI. 52. 
598. Procellaria flavirostris, Gould. 
Procellaria flavirostris, Gould in Ann. and Mag. of Nat. Hist., 
vol. xiii. p. 365. 
Feathers of the head and all the upper surface brown with pearl 
edges, fading into white on the tips of the upper tail-coverts ; wings 
and tail deep blackish brown ; all the under surface pure white; the 
feathers of the under surface of the shoulder with a streak of brown 
down the centre ; bill yellow, passing into dark horn-colour at the 
tip ; tarsi and feet fleshy white. 
This fine species was procured off the Cape of Good Hope, in lat. 
36° 39' S., long. 10° 3' E., by His Excellency Governor Grey, on 
his passage to South Australia. It is distinguished from its con- 
geners by its much larger size, and by the yellow colouring of the 
bill. The female is somewhat smaller than her mate. 
This bird so nearly approaches in form the members of the genus 
Puffinus , that it is almost questionable whether it should not be in- 
cluded in that group. 
599. Procellaria nivea, Gmel. 
600. Procellaria Antarctica, Gmel. 
Genus Daption. 
A genus established for the reception of the Procellaria Capensis 
of Linnaeus, a species abounding in all the temperate latitudes of the 
southern seas. 
601. Daption Capensis Vol. VII. PI. 53. 
Genus Prion. 
A genus of fairy-like Petrels confined to the southern hemisphere : 
much confusion exists respecting these birds, and they are so puzzling 
that I regret to say I have not been able to throw any light upon the 
subject. 
Of the following species two only have been figured : — 
602. Prion Turtur Vol. VII. PI. 54. 
603. Prion vittatus Vol. VII. PI. 55. 
604. Prion Banksii. 
Pachyptila Banksii , Smith, Zool. of South Africa, Aves, pi. 55. 
Prion Banksii , Gould in Ann. and Mag. of Nat. Hist., vol. xiii. 
p. 366. 
Found in the temperate latitudes of the Atlantic and Pacific, and 
I believe in similar latitudes all round the globe. 
605. Prion Ariel, Gould. 
Prion Ariel , Gould in Ann. and Mag. of Nat. Hist., vol. xiii. 
p. 366. 
I killed this species in Bass’s Straits, wdiere it was rather numerous. 
