Differs from _L. nasicus_ in being of a much larger size; but the colouring being similar, I have not thought it necessary to figure it.
Of this genus two species are known, one of which was exclusively confined to Phillip Island, and the other inhabits New Zealand; they are evidently the remains of a race, all the other members of which are probably extinct.
367. Nestor productus, _Gould_ Vol. V. Pl. 6.
The few examples of this species that may exist in captivity are all that survive, none remaining on Phillip Island, their native habitat.
The _Calyptorhynchi_ are strictly arboreal, and are evidently formed to live upon the seeds of the _Banksiæ_, _Eucalypti_, and other trees peculiar to the country they inhabit; they diversify their food by occasionally devouring large caterpillars; as they mostly move about in small companies of from four to six in number they can scarcely be considered gregarious. Their flight is rather powerful, but at the same time laboured and heavy; and their voice is a low crying call, totally different from the harsh screaming notes of the _Cacatuæ_. Each division of the country, from the north coast of the continent to Van Diemen’s Land, is inhabited by its own peculiar species.
I have never seen a member of this genus from any other country than Australia, but I have heard that an extraordinary Parrot, said to be larger than any at present in our collections, inhabits New Guinea, and which, from the description given of it, will probably be of this form. The _Calyptorhynchi_ lay from two to four eggs in the holes of trees.
368. Calyptorhynchus Banksii Vol. V. Pl. 7. 369. Calyptorhynchus macrorhynchus, _Gould_ Vol. V. Pl. 8.
Inhabits the north coast, where it represents the _C. Banksii_ of the eastern and the _C. naso_ of the western coasts.
370. Calyptorhynchus naso, _Gould_ Vol. V. Pl. 9.
This species, which is confined to Western Australia, is rendered conspicuous by the small size of its crest, and by its bill being nearly as large as that of _C. macrorhynchus_, while its wings are much shorter than those of that species.
371. Calyptorhynchus Leachii Vol. V. Pl. 10.
_Banksianus Australis_, Less. Traité d’Orn. p. 180, Atlas, pl. 18, fig. 2, fem.