Australian Birds in the Collection of the Linnean Society. 969 
adjoining trees, but never from that in which the nest is situated. 
They are sometimes found to enter the hollow limb as far as two 
yards. ‘The nests are generally formed in a Black-butted gum- 
tree; and also in Coroy'bo, Cajim’bora and Yarrowar'ry trees 
(species of Eucalyptus).—Their breeding-places appear to be 
local." | | 
** Crista rotundatá, retrorsum incumbente. 
2. Eos. Pl. pallidè cineraceus; collo, corpore subtus, tectricibus- 
que inferioribus rosaceis; cristá albido-rosaceá. 
Psittacus Eos. Kuhl, Nova Acta &c. vol. 10. p. 88. no. — 
Perroquet kakatoe rosalbin. Temm. Pl. Col. 81. 
Le Kakatoés rose. Vieill. Gal. des Ois. pl. 25. 
Genus. CALYPTORHYNCHUS*. 
Rostrum crassum, fortissimum, multó altius quàm longum, basi 
latum; mandibule superioris culmine compresso, a basi 
ascendente, maxime arcuato, apice introrsum inclinante ; 
© inferiore brevissimá, dilatá, fortiter emarginatá, apice in- 
trorsum inclinante, plumis genarum precipue tectá: cristd 
retrorsum incumbente. 
Ale mediocres; remigibus secunda tertià quartà et quintà fere 
æqualibus longissimis, prima et sexta æqualibus ; secundæ 
ad quintam inclusam pogoniis externis medium versüs 
emarginatis. 
Pedes subfortes, digitis unguibusque mediocribus. 
Cauda subrotundata, sublonga ; rectricum rhachibus apice sub- 
. elongatis, nudis. 
The chief difference between this genus and that of Plycto- 
lophus consists in the greater elevation and the comparative 
shortness of the bill. The latter group possesses a bill of 
* KaAvrro celo, and fvyyxos rostrum. 
nearly 
