PSITTACI: P ABBOTS. 



495 



characters afforded by the carotid arteries and ambiens muscle. I. PALjEOENlTHlDiB : Carotids 

 two (except in Cacatwa), the left normal, and no amhiens. II. P,sittacid..e : Carotids two, 

 the left superficial, the amhiens present in one scries of genera, absent in others. In the sub- 

 family (1) Palcc'ormthina, there is no further deviation; in (3) Cacatii'ina', besides the lack of 

 a right carotid in Cacatua itself, the orbital ring is completely ossified, and develops a bony 

 process bridging in the temporal fossa; in (:-!) Striiifjophice, which incdudes the curious flightless 

 ground Parrot or owl Parrot of New Zealand {Siringops hahrojjtihis), tlie furculum and sternal 

 keel are deficient or deti.'ctive. Psittacidtc iucdmle (1.) the Ariwe, in \\'liich the amhiens muscle 



im:T 



Fig. 347. —Carolina Parroquet,i nat. size, (From Brelim, after Audubon.) 

 is present ; (5) Pyrrhurina;, in which it is absent, without further modification ; (6) Platy- 

 cercincs, no amhiens and no furculum ; (7) Chrysotince, no amhiens, no furculum, and no oil- 

 gland. There are thus 7 subfamilies of 2 families of PsiUaci. 



" Parrots abound in all tropical countries, but, except in Australia and New Zealand, 

 rarely extend into the temperate zone. The Indian and ^Ethiopian regions are poor in parrots^ 

 while the Australian is the richest, containing many genera and even whole families peculiar 

 to it." (Newton.) The highest authority, Finsch, recognizes 354 species as well deter- 

 mined, distributing them in 26 genera; 142 are American, 23 African, and 18 Asiatic; the 

 Moluccas and New Guinea have 83, Australia 59, and Polynesia 29. 



