Zoological Society, 513 



" The ovaria were of a narrow elongated form, with a slightly 

 tuberculated surface. I obtained ova from several of the graafian 

 vesicles, and one of these contained two ova : they closely resemble 

 those of the human subject, have a thick transparent vitelline tunic, 

 containing the minutely granular contents and germinal vesicle : dia- 

 meter 2^0^^ ^^ ^^ inch." 



Prof. Owen exhibited one of these ova, and concluded by obser- 

 vations on the brain of the Orang-utan. Its weight was 11 oz. 2 drs. 

 12 grs. avoird., including the injected jsm mater. 



" Descriptions of four new species of Ortyx," by Mr. Gould. 



Ortyx leucophrys. Ort. facie et strigd laid superoculari fuU 



vescenti-albis ; nuchcB laterumque colli plumis splendide castaneis 



albo utrinque fimhriatis ; illis dorsi superioris castaneis, plumbeo 



marginatis ; pectore cinereo, strigd ruhide castaned per plumas 



singulas excurrente, primariis saturate ferrugineis , 



Face and a broad stripe over the eye buffy white ; ear-coverts and 



crown of the head brown ; feathers of the sides and back of the neck 



rich chestnut, margined on each side with white; feathers of the 



upper part of the back rich chestnut, margined with slate- grey ; 



breast grey, with a stripe of reddish chestnut in the centre of each 



feather ; back dark greyish brown, very minutely freckled with black ; 



wings brown, freckled with buff and black ; primaries deep rust-red ; 



tail dark brown, freckled with buff and black ; irides clear brown ; 



feet red ; bill black. 



Total length, 131 inches; bill, |; wing, 7^; tail, 6 ; tarsi, 2|. 

 Hab. Coban, Central America. 



In the collection of the Earl of Derby. Another specimen, in the 

 museum of the Jardin des Plantes, is somewhat larger and brighter 

 in colour than the one here described. 



Ortyx fasciatus, Natt. MS. 0. cinereus, alis corporeque subtils, 

 fulvo, nigrescenti-fusco, et albo fasciatis. 



Forehead reddish brown ; crest deep brownish black, tipped with 

 reddish brown ; chin greyish white ; ear- coverts brown ; sides and 

 back of the head light brown, minutely freckled with darker brown 

 and white ; all the upper surface greyish brown, minutely freckled 

 with darker brown and white, the coverts and scapularies passing 

 into black towards the extremity of each feather, and crossed at the 

 tip with a narrow band of buff; tail similarly marked, but browner 

 than the upper surface and crossed by numerous freckled irregular 

 double bars of dark brown and greyish white ; primaries brown, with 

 lighter edges ; all the under surface brownish black, each feather 

 crossed at the tip with a broad band of pure white, which, becoming 

 gradually wider on the centre of the abdomen, leaves that part white ; 

 on the breast the white marks are very faint, and the feathers are 

 tinged with rufous; thighs buff; under tail-coverts light buff, with 

 two blackish brown spots down the centre of each feather ; bill black ; 

 feet flesh- colour. 



Total length, 8^ inches ; bill, f ; wing, 4^ ; tail, 3 ; tarsi, 1 J. 



Hab. California. 



