364 



DR. ST. GEORGE MIVART ON THE SKELETON OF [May 7, 



above the lambdoidal ridge but more rounded and projecting below 

 the latter, and paroccipital processes more sharply inclined back- 

 wards and also more distinct from the relatively smaller quadrates. 

 The GENERAL DORSAL ASPECT of the skuU (see fig. 3, p. 367) 

 shows, compared with that of P. erithacus, a relatively short bony 

 beak on account of the sharp vertical deflection of the latter towards 

 its apex. Tlie skull behind the cranio-facial articulation is flatter 

 and tlie orbits somewhat more deeply incised, the deepest part 

 of the incision being more preaxially situated in the orbital margin. 

 The middle part of the hinder (occipital) margin presents a slight 

 median concavity instead of an evenly and very slight!}'' curved 

 convexity. The dorsum of the skull is flatter antero-posteriorly 

 than in P. eriiliacus. 



Fig. 2. 



Lateral aspect of skull of Psittacus erithacus, 



da. Depressed area in front of nasal aperture. 



(The other letters the same as in fig. 1.) 



The GENERAL VENTRAL ASPECT (see figs. 6 & 7, p. 378) of the 

 skull of L. jiavopalliatus is very similar to that of the skull of the 

 Grey Parrot, but, as in the dorsal view, the bony beak forms a less 

 proportion of it, as does the space occupied by the palatines, while 

 the basis cranii is relatively more antero-posteriorly extended, the 

 quadrates more anterior in position, while the very elongated lachry- 

 mal processes extend beside the zygomata for much more, instead 

 of much less, than half the antero-posterior extent of the latter. 



The general anterior aspect of the skull (see fig. S,p. 382) of 

 the Lory is very like that of P. erithacus, but the apex of the beak 

 is more narrow and elongated, the nares looking more upwards and 

 less outwards, the postorbital processes project less laterally, while 

 the lachrymals are relatively broader, their processes more elongated, 



