280 



Genus Euphema. 



1452. The skeleton of the Blue-banded Grass-Parrakeet (Euphema chrysostoma). 



i 

 Of the 1 8 vertebrae between the skull and sacrum, the six posterior bear moveable ribs : of 



these the last four pairs unite with the sternum : there are also two pairs of ribs attached to 

 the sacrum, of which the first articulates with the sternum. The sternum is of great extent, 

 and the keel of unusual depth in this genus of swift-flying Parrots ; but there are two mode- 

 rately large oval vacuities near the posterior border, which describes a semicircle. The sub- 

 orbital process of the lacrymal does not quite reach the mastoid. 



Mm. Gould. 



Genus Trichoglossus (Lories). 



1453. The skeleton of the Lory (Trichoglossus concinnus). 



Of the 1 7 vertebrae between the skull and sacrum, the six posterior bear moveable ribs : of 

 these the last four pairs unite with the sternum : two other pairs of ribs are attached to the 

 sacrum, the first of which joins the sternum. The suborbital process of the lacrymal rests 

 upon the slender zygomatic arch, and the mastoid descends and touches the same arch. The 

 right posterior small perforation of the sternum is almost obliterated. The spines of the 

 dorsal vertebrae form a continuous ridge of bone, but are not anchylosed. 



Mus. Gould. 



Genus Psittacus. 



1454. The skeleton of the Ash-coloured Parrot (Psittacus erithacus). 



The suborbital process of the lacrymal terminates before it has extended halfway beneath 

 the orbit. Of the 1 9 vertebrae between the skull and the sacrum, the seven posterior bear 

 moveable ribs ; and of these the last five pairs unite with the sternum. The first two sacral 

 vertebrae also bear ribs, both pairs of which articulate with the sternum. 



Hunterian. 



1455. The skeleton of a Parrot (Psittacus erMacus). 



The suborbital process of the lacrymal very nearly attains the mastoid : the postfrontal is 

 feebly developed. Of the 19 vertebrae between the skull and sacrum, the seven posterior bear 

 moveable ribs and the last five unite with the sternum : there are also two pairs of sacral ribs. 



Mm. South. 



1456. The skeleton of a Parrot (Psittacus). 



The ossification continued below the orbit from the lacrymal joins the mastoid, but not 

 the postfrontal. The right humerus has been fractured near its middle and united. Of the 

 1 9 vertebra between the skull and sacrum, the seven posterior bear moveable ribs, and of these 



