76 DR. SCI.ATER ON DIARDIGALLUS PR^LATTJS. [Feb. 24, 



ultimo aniice vix dilatato, ad peripheriam obtuse angulato ; 



apertura subangulata, antiee vix producta, umbilico margine 



acuta. 

 Hab. Gotto, 48 fathoms. 



This species resembles .1 small depressed Trochus, with a flat base, 

 a somewhat angular periphery, and a deep rather narrow umbilicus. 



13. Adeorbis subangulata, a. Ad. 



A. testa ooato-orbiculari, subdepressa, vertice elatiusculo, alba, 

 radiation tenuiter striata, profunde umbilicata; anfractibus S-g-, 

 convexiuscuUs, ultimo antiee dilatato, superne obtusim angulato, 

 infra subplano ; apertura subquadrata, antiee producta ; labro 

 supra subangulato, umbilico margine aeuto. 

 Hab. Gotto, 48 fathoms. 



The angular projection of the whorls is not at the periphery, but 

 above it, which causes the snbquadrate form of the aperture ; whereas 

 in the British A. subearinata and the Japanese A. carinata the peri- 

 phery is carinate, more or less, and the aperture triangular. 



14. Adeorbis diaphana, A. Ad. 



A. testa depresso-orbiculari, alba, tenui, pellucida, late et pro- 

 funde umbilicata, spira prominula ; anfractibus 3|, subplanu- 

 latis, lineis incrementi ornatis ; anfractu tdtimo antiee vix dila- 

 tato, ad peripheriam rotundato ; apertura circulari ; umbilico 

 patulo, perspectivo, margine carinato. 

 Hab. Gotto, 71 fathoms. 



This little pellucid shell is more globose than the species of 

 Adeorbis generally, and the aperture is nearly circular, with a conti- 

 nuous peritreme. By some it would be called a Vitrinella ; but the 

 limits of that group do not seem to be yet determined. 



February 24, 1863. 



E. W. H. Holdsworth, Esq., F.Z.S., in the Chair. 



Dr. Sclater exhibited a skin of the female of the splendid Phea- 

 sant, figured by Mr. Gould in the ' Birds of Asia ' under the name 

 Diardigallus prcelatus, which had been transmitted to him from 

 Siam by Sir Robert Schomburgk. Dr. Sclater remarked that, it 

 being now certain that the figure upon which Phasiamis crawfurdi. 

 Gray, had been founded, had been intended for some other bird, 

 the oldest specific name ior this species appeared to be prcelatus of 

 Prince Charles Bonaparte (Compt. Rend, xliii. p. 415, 1856); but 

 that another synonym, not quoted by Mr. Gould, was Gallus diardii, 

 under which name Dr. Schlegel had described and figured this bird 



