386 Zoological Society, 



Male. — Naked skin before and behind the eye yellowish ; bill 

 black ; crest rather lengthened and full ; forehead and ear-coverts 

 clouded chestnut, the former passing into reddish chestnut on the 

 crown, and gradually brightening towards the occiput ; throat and 

 neck both before and behind grey, all the feathers margined with 

 rufous ; scapularies and wings (except the primaries) beautifully 

 marked with rich chestnut, buff and black, the black predominating 

 on the scapularies, which feathers are rendered very conspicuous by 

 having a whitish buff line down the centre ; the tertiaries also are 

 marked with a bold edging of rich buff, bounded on the inner side 

 by a well-defined band of black, which surrounds the feather, while 

 the bufF occupies the upper edge only ; at the tip of all the wing- 

 coverts is a triangular spot of bufFy white ; primaries blackish brown, 

 marked on their outer edge with indistinct but regular bars of red- 

 dish brown ; back and rump dull greyish buff, each feather minutely 

 dotted and freckled with brown and black ; tail-coverts and tail ru- 

 fous brown and black, the markings and colour so disposed that 

 neither predominate, being dispersed over each feather in alternate 

 narrow zigzag lines, interspersed with minute dots and freckles ; 

 chest, abdomen and under tail-coverts rich rufous chestnut ; the 

 feathers of the chest with a small white mark in the centre, very 

 nearly surrounded by a narrow irregular line of black, giving it a 

 very sparkling appearance ; feet and legs in the dried specimen horn- 

 colour. 



Female. — Differs in being smaller in size and in having the small 

 white markings of the chest, being more lengthened in form and less 

 conspicuous than in the male ; in all respects the colouring of the 

 two sexes is generally similar. 



Male. Female. 



Total length 10| inches. 9^ inches. 



Bill . .*•. Of — Of — 



Wing 5f — 51 — 



Tail 31 — 21 — 



Tarsi 2 — If — 



This species is about the size of the Common Partridge. The 

 specimens from which the above descriptions were taken are in the 

 British Museum, to which they were presented by Lord Stewart ; 

 they are said to be from Brazil. 



Specimens of new species of the genera Trochus and Turbo were 

 also exhibited, and were accompanied by the folloAving descriptions 

 by Lovell Reeve, Esq. 



Genus Trochus. 



Trochus asteriscus. Troch. testd obeso-conicd, viridescente, an- 

 fractuum margine squamoso-stellatd, squamis, grandibus cavis, in- 

 fimd facie eximie serratd, serris linearibus, parallelis, circulatim 

 dispositis ; umbilico tecto, basi roseo-tinctd. 



Reeve, Conch. Syst., vol. ii. pi. 217. f. 3. 



Alt. 11 ; diam. 11 poll. 



Hab. } 



