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LORIANA. 
It is the second aberrant group of the family, repre- 
senting the tenuirostral tribe of the Insessores, and 
consequently is analogous to the order Grallatores 
in the class Aves ; and to the Glires among the 
Mammalia. In conformity with these analogies, the 
existence of which have been traced and followed out 
in various departments of zoology, with such per- 
spicuity and convincing force, by one of the first 
naturalists of the age,* we find the habits as well as 
the structure of the birds composing it, deviating in 
a striking manner from those of the conterminous 
groups, of course most conspicuously so, in such as 
constitute the typical or representative forms. The 
difference of structure to which we allude is in the 
shape of the bill and tongue, the former member be- 
ing weaker and slenderer in its proportions than in 
the other Parrots, especially as regards the under 
mandible, which is lengthened and less convex in its 
contour, with the tip contracted and narrow, and the 
tomia or cutting edges straight and without emargina- 
tion ; the inner surface of the overhanging point of 
the upper mandible, which in the other groups is 
rough and like a file, with lines crossing each other 
at right angles, to give them a firm hold of nuts or 
seeds, is smooth or nearly so, aud the ridge opposing 
the tip of the under mandible, which in the typical 
Parrots is prominent and strongly marked, is but 
slightly indicated or altogether wanting in the Lo- 
riancs, as aie also the prominences of the palatial 
* Mr Swainaon. 
