151 



In addition to the species described, the following 

 belong to this present genus, viz. Plyctolophus Philip- 

 pinarum, Red-crested Cockatoo, a native of the Phi- 

 lippine Islands; Plyct. Moluccensis, Wag., the Great 

 red-crested Cockatoo, which is found in the Mo- 

 luccas, Sumatra, &c. ; Plyct. cristata, Wag., also a 

 native of the Moluccas, and the Plyct. rosei-capil- 

 lus, Vieill. (Psittacus Eos. of Kuhl), which, how- 

 ever, departs from the type in the form and struc- 

 ture of the crest, approaching in this respect nearer 

 to Wagler's genus Licmetis, which is represented by 

 the Psittacus nasicus of Temminck, described in the 

 13th volume of the Transactions of the Linnaean 

 Society, and in the "Planches Coloriees," plate 351. 



Nearly allied to the Cockatoos, and included in 

 that genus by many authors, is the Red-crowned 

 Parrot (Psittacus galeatus of Latham, Kuhl, &c.) 

 It forms the type of Wagler's genus Corydon, and, 

 according to the views of that author, forms the con- 

 necting medium between the Cockatoos and the ge- 

 nus Calyptorynchus of Vigors and Horsfield, upon 

 which we are about to enter, and for which group 

 we propose to give the title of Geringore, taken from 

 the name applied to one of the finest and largest 

 species by the natives of Australia. The characters 

 of the genus Calyptorynchus are: Bill thick, 

 very strong, much higher than long, wide at the 

 base, compressed towards the culmen, greatly arch- 



