Zoological Society. 335 
but easily to be distinguished by the substance of its shell, by the 
raised spire and the thin peristome, characters quite constant in all 
specimens known. 
May 27.—William Yarrell, Esq., Vice-President, in the Chair. 
Mr. Gould exhibited to the Meeting four new species of Birds 
from Australia, which he characterized as follows :— 
ArpeA (Heronpias) picata. Ard. capite superiore, occipite, plu- 
mis occipitalibus, corpore superiore, caudd, alisque ceruleo-nigris ; 
mento, nuchd, pectore, et quibusdam plumis a pectore dependentibus 
albis. 
Upper part of the head, occiput, occipital plumes, the whole of the 
plumage of the body, wings and tail bluish slaty black; chin, neck, 
chest and some of the lanceolate feathers dependent therefrom white ; 
some few of the lanceolate feathers on the neck and breast have one 
web white and the other web bluish slaty black; the remainder of these 
lanceolate feathers are the same colour as the body; irides yellow; 
bill, legs and feet greenish yellow. In young specimens the whole 
of the under surface is white. : 
Total length, 17 inches; bill, 31; wing, 10; tail, 3}; tarsi, 34. 
Hab. Port Essington. 
CoLLURICINCLA PARVULA. Col. corpore superiore, caudd, alisque 
olivaceo-brunneis ; subtis pallide cervind ; medio plumarum gule 
et pectoris vittd lata brunned ornato. 
All the upper surface, wings and tail olive-brown; a faint line 
over the eye and the chin white; all the under surface pale buff, the 
feathers of the throat and breast with a broad stripe of brown down 
the centre ; irides dark brownish red; bill blackish grey ; tarsi bluish 
ey. 
or Total length, 7 inches; bill, 1; wing, 4; tail, 34; tarsi, 1. 
Hab. Port Essington. 
This is the smallest species of the genus yet discovered. 
MELITHREPTUS MELANOCEPHALUS. Mel. toto capite, guld, et ma- 
culd semilunari apud latera pectoris saturat® nigris ; corpore su- 
perne flavo-olivaceo pectore albo. 
The whole of the head and throat, and a semilunar mark on either 
side of the chest, deep glossy black; all the upper surface yellowish 
olive, becoming brighter on the rump ; wings and tail brownish grey, 
with lighter margins; breast white; remainder of the under surface 
greyish white ; bill black; irides reddish brown; feet brown; bare 
skin over the eye pearly white, slightly tinged with green. 
Total length, 5 inches; bill, °,; wing, 3; tail, 25; tarsi, 2. 
Hab. Van Diemen’s Land. 
HeEMIpopIvs scInTILLANS. Hem. corpore superne pallidé castaneo, 
singulis plumis fasciis latis brunneo-nigris ornatis ; marginibus 
plumarum cinereis ; intra margines lineis angustis nigris et albis 
ornatis ; tectricibus alarum et tertiariis pallide castaneo-rubris 
balteis irregularibus ziczac fasciatis ; interspatiis balteorum cine- 
reo-albis ; mento genisque albis maculd semilunari brunned ad 
