256 ON THE ANATOMY OF THE PARROTS. 
Calopsitta, 
Calyptorhynchus. 
Inemetis. 
‘ Eolophus. 
Cacatua. 
Subfamily (3) Srrivcorinz. The furcula, lost.* 
Stringops. 
Huphema. 
Geopsittacus. 
Melopsittacus. 
Agapornis. 
Family II. Psrrracipz. (Left carotid superficial.) 
Division 1. The ambiens muscle present. 
Subfamily (4) Arinaz. No further deviation. 
Ara. 
Oonurus. 
Bolborhynchus. 
Oaica. 
Psittacus. 
Peocephalus. 
Nestor. 
Page 595. Division 2. The ambiens muscle wanting. . 
Subfamily (5) Prrraurinz. No further deviation. 
Pyrrhura. 
Lathamus. 
Coracopsis. 
Pyrrhulopsis. 
Subfamily (6) Piarycercinaz. Furcula lost. 
Platycercus. 
| Pett 
Oyanorhamphus. 
Psittacula. 
Subfamily (7) Curysorina. Oil-gland lost. 
Chrysotis. 
Pionus. 
Brotogerys. 
In phyllogenetic language this arrangement would be expressed 
thus:—The original stem, in which the carotids were normally dis- 
* See the special remarks on this group in the postscript to this paper. 
Se _— 
