288 Zoological Society. 
Remark.—This species differs from all its Australian allies by the 
more lengthened form of the tail and the conspicuous tuft of fea- 
thers which spring from the fore-part of the head, and it is — this 
character the specific name has been taken. 
PiatycEeRcus sPpLENDIDUS. Plat. capite, colli lateribus, et medio 
pectore, coccineis ; genis albis ; dorso inferiore, et tectricibus caude 
superioribus pallide viridibus ; lateribus pectoris, et abdomine 
splendid? flavis ; crisso pallide viridi. 
Head, sides of the neck and centre of the breast scarlet; cheeks 
white, faintly tinged with blue; feathers of the back and scapularies 
black, broadly margined with gamboge-yellow ; lower part of the 
back and upper tail-coverts pale green; on the shoulder a patch of 
black ; wing-coverts pale blue; primaries black, with the exception 
of the basal portion of the external web, which is rich deep blue; 
two central tail-feathers dark green at the base, passing into deep 
blue on the apical half of the external web, and tipped with black ; 
the next on each side is black on the internal web, green at the base 
of the external web, blue for the remainder of its length, and slightly 
tipped with white; the remainder of the tail-feathers are deep blue 
at the base of the external, and black at the base of the internal web, 
the remaining portion of both webs being pale delicate blue, passing 
into white at the tip; sides of the breast and the abdomen bright 
gamboge-yellow; vent pale green in some, in others pale bluish 
green; under tail-coverts scarlet; irides dark brown; bill horn- 
colour; feet mealy brown. 
Total length, 12 inches; bill, 3; wing, 6; tail, 7; tarsi, 2. 
Another specimen, probably immature, has the general colour 
similar, but has the head and breast pale yellow, interspersed with 
scarlet feathers. 
Hab. Darling Downs, New South Wales. 
Remark.—Very nearly allied to, but a more beautiful species 
than, the Platycercus eximius, from which it differs in the extent of 
the scarlet on the breast, which in this species merely occupies the 
centre, while in the former it forms a broad band across the breast ; 
the rump also is of a paler green. 
«‘ A Description of new species of Ostree, in the collection of H. 
Cuming, Esq.,”” by Sylvanus Hanley, Esq., was then read :— 
OstreA Cuemnitzi1. Ost. testd obovali, plerumque sinistrorsd, 
valde compressd, solidd, nitidd, luted aut sordide rubro-purpu- 
rascente, subtuberosd, nonnunquam paululim subvesiculosd, nullis 
lamellis asperatd ; margine plicato, intusque persepe scabro ; plicis 
plerumque parvis ; superficie internd albido-virescente ; cicatrice 
satis magnd, subreniformi. Long. 3 poll. 
Hab. China? Mus. Cuming, Hanley, &c. 
A species which is closely allied to rosacea, with a peculiar resi- 
nous gloss, and invariably attached by the entire surface of the lower 
valve. The colour varies from dirty yellow to dull reddish purple. 
The apices are not much attenuated. The figure 994 of Chemnitz 
is a fair representation. 
