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324 GEOGEAPHICAL ZOOLOGY. [part iv.
Ethiopian regions, a few outlying species only entering the
Australian or the Palsearctic regions. One family (Todicise) is
confined to the West Indian Islands ;
consisting of but a single species, to Madagascar ;
and another (Leptosomidai)
parallel cases
to the Drepanididae among the Passeres, peculiar to the Sand-
wich Islands, and the Apterygidae among the Struthiones,
peculiar to New Zealand.
Order III.—P8ITTACL
The Parrots have been the subject of much difference of
opinion among ornithologists, and no satisfactory arrangement
of the order into families and genera has yet been reached.
Professor Garrod has lately examined certain points in the
anatomy of a large number of genera, and proposes to revolu-
tionize the ordinary classifications. Until, however, a general
examination of their whole anatomy, internal and external, has
been made by some competent authority, it will be unsafe to
adopt the new system, as we have as yet no guide to the com-
parative value of the characters made use of. I therefore keep
as much as possible to the old groups, founded on external
characters, only using the indications furnished by Professor
Garrod's paper, to determine the position of doubtful genera.
Family 76.—CACATUID^. (5 Genera, 35 Species.)
Neotropical
Sl'B-REGIONS.
General Distribution.