ON THE ANATOMY OF THE PARROTS. 
Pionus, 
Peeocephalus, 
Prioniturus, 
Psittacus, 
Psittinus, 
Agapornis, 
Cyanorhamphus, 
Euphema, 
Geopsittacus, 
Melopsittacus, 
Pyrrhulopsis, 
Pyrrhura, 
Tanygnathus, 
Trichoglossus. 
The furcula is but partially developed or absent in 
Platycercus, 
Psephotus, 
Psittacula, 
Stringops. 
251 
Dr. Finsch, in his monograph on the Parrots*, has given a list of 
IV. The presence or absence of the oil-gland. 
those species in which the condition of the furcula has been recorded, 
which is very complete, embracing most of the above genera. 
When present the oil-gland is always tufted in the Parrots. 
It is present in the following genera :— 
. Agapornis, 
Aprosmictus, 
Ara, 
Bolborhynchus, 
Caica, 
Calopsitta, 
Calyptorhynchus, 
Conurus, 
Coracopsis, 
Cyanorhamphus, 
Eclectus, 
Eolophus, 
Eos, 
Euphema, 
Geopsittacus, 
Lathamus, 
LTiemetis, 
It is absentin - 
Brotogerys, 
Loriculus, 
Lorius, 
Melopsittacus, 
Nestor, 
Paleornis, 
Platycercus, 
Peeocephalus, 
Prioniturus, 
Psephotus, 
Psittacula, 
Psittacus, 
Psittinus, 
Pyrrhulopsis, 
Pyrrhura, 
Stringops, 
Tanygnathus, 
Trichoglossus. 
Pionus. 
Nitzsch, in his work on pterylosist, has recorded its absence in some of 
the genera. 
* “Die Papageien,” Bd. i. p. 197. 
t+ “ Pterylography,” English edition, p. 98 e¢ seq. 
