NOTES 
ON 
THE OSTEOLOGY OF SCANSORES. 
BY 
T. C. EYTON, Esa, F.L.S., F.Z.S., &. 
Mr. G. RB. Gray, in his genera of birds, has very properly dis- 
carded, from the order Scansores, all those birds which have not 
the power of turning one of the three anterior toes backwards. 
There is one family, howeyer, which ought to be included in it, 
allude to that to which Turacus belongs, both on account of it 
Possessing that power, and from a similarity in the Osteology with 
the rest of that group. 
fi here is one osteological character found in detached genera 
ee the group, of which I am not aware of the occur- 
‘ © mM any nearly allied order, the absence or existence only in 
Tudimentary state of the Os fureatum. Among the Psittacide, 
8 character is found in Platycercus and Psittacula, among 
sue Phamphastidee in Rhamphastos, among the Picide in Psil- 
ar és and Megalaima, and in Turacus bufonii, where the 
ees ‘ are not anchylosed together at the point where they ap- 
Weak es sternmm. Among the Cuckoos also, that bone is very 
this peer small. In the above named genera, I haye observed 
erytlng ee in the following species : — Platycereus brownii, 
Pusillue, mp and ieterotis ; Psittacula passerina, Nanodes 
throrynehy. venustus ; Pezoporus formosus, Rhamphastos ery- 
oe Psilopogon pyrolophus, and in a small Megalaima 
