Head, back of the neck, shoulders, primaries and tail dark brown; back, wing-coverts and upper tail-coverts slate-grey, each feather margined with dark brown; face and all the under surface brown, washed with grey on the abdomen; bill, tarsi, toes and membranes black.

This is a remarkably robust and compact bird. I shot a single individual in Bass’s Straits on the 13th of March 1839. M. Natterer thought that it might be identical with the bird figured in Banks’s drawings, to which Dr. Solander has affixed the term melanopus, an opinion in which I cannot concur; I have therefore named it in honour of that celebrated botanist. The specimen above described may possibly not be fully adult, as the dark colouring of the under surface only occupies the extreme tips of the feathers, the basal portions of which are snow-white.

593. Procellaria Glacialoïdes, SmithVol. VII. Pl. 48.
594. Procellaria Lessonii, Garn.Vol. VII. Pl. 49.
595. Procellaria mollis, GouldVol. VII. Pl. 50.
596. Procellaria Cookii, G. R. GrayVol. VII. Pl. 51.
597. Procellaria cœrulea, Gmel.Vol. VII. Pl. 52.
598. Procellaria flavirostris, Gould.

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 congeners 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 included in that group.

599. Procellaria nivea, Gmel.
600. Procellaria Antarctica, Gmel.

Genus Daption, Steph.

A genus established for the reception of the Procellaria Capensis of Linnæus, a species abounding in all the temperate latitudes of the southern seas.