68 



ON THE GENUS LATHAMUS. 



P. Z. S. 1879, 

 p. 171. 



Fig. 1. Head of Lathamus discolor. 



Fig. 2. Foot of ditto. 



Fig. 3. Head of Psephotus hcematogaster. 



Fig. 4. Foot of ditto. 



Fig. 5. Head of Trichoglossus concinnus. 



Fig. 6. Foot of ditto. 



P. Z. S. 1879, skins. 

 p. 172. 



In Lathamus, however, and the Platycercinae generally, the cere 

 g jnuc larger, with the anterior border on each side mearly semicircular ; 

 and the nostrils are oval and directed upwards, more nearly parallel with 

 the culmen (see figs. 1 and 3). 



In the small size of the nude orbital ring Lathamus agrees with the 

 PlatycercinsB rather than with the Lories, in which it is of fair size and 

 rather conspicuous in the living birds. 



In the shape of the wings, no doubt, Lathamus is somewhat aberrant, 

 and nearer the Lories than the Platycerci. This is, however, so obviously 

 an adaptive modification, due to the swift flight and arboreal habits of 



