41 



March 24, 1835. 



William Yarrell, Esq., in the Chair. 



A Letter was read, addressed to the Secretary by W. Willshire, 

 Esq., Corr. Memb. Z. S., dated Mogadore, February 19, 1835, and 

 referring to the skin of an Aoudad, Ovis Tragelaphus, Geoff., pre- 

 sented by the writer to the Society, and also adverting to his en- 

 deavours to obtain the animal which, from the description of it given 

 by the Arabs of the Desert, Mr. WiUshire conceives must be the 

 Antilope Leucoryx described by Pennant. 



The exhibition was resumed of the new species of Shells contained 

 in Mr. Cuming's collection. Those brought on the present evening 

 under the notice of the Society, completed the genera Venus and Cy- 

 therea, which had been commenced at the Meeting on February 24, 

 (page 21). ITie Shells now exhibited were accompanied by cha- 

 racters by Mr. Broderip and Mr. G. B. Sowerby. 



Genus Venus. 



Venus tricolor. Ven. testa ovato-ellipticd, crassiusculd, radiatim 

 costellatd, costellis decussatis ; maculis interruptis fuscis, irregu- 

 larihus, radiatim dispositis ; margine dorsali medio subangulato ; 

 impressione cordiformi anticd parvd ; intHs violaced, margine ven- 

 trali denticulato : long. 1'7, lat. 0*75, alt. 1'3 poll. 

 Hab. ad oras Americse Centralis. (Puerto Portrero.) 

 Found in sandy mud at from eleven to thirteen fathoms. — G. B. S. 



Venus histrionica. Ven. testd obovatu, pallide fulvd, radiatim 

 costellatd, costellis plerumque duplicatis, concinne decussatis, 

 asperis ; maculis interruptis fuscis irregularibus radiatim pictd ; 

 margine dorsali rectiusculo, postice subangulato ; impressione cor- 

 diformi anticd magnd ; intus albicante, margine ventrali denticu- 

 lato : long. 1'8, lat. V, alt. VA poll. 



Hab. apud Real Llejos, Americse Centralis, et ad Sanctam Elenam. 



Found in muddy sand at low water. — G. B. S. 



Venus fusco-lineata. Ven. testd obovatd, albicante, radiatim cos- 

 tellatd, costellis antice subdecussatis ; lineis undatis, subobliquis, 

 radiisque duohus fuscis nonnunquam pictd ; margine dorsali rec- 

 tiusculo, postice subangulato ,- latere antico brevi, impressione cor- 

 diformi anticd parvd ; intils purpurascente, margine ventrali den- 

 ticulato : long. 1*5, lat. 0'8, alt. 1-2 poll. 

 Hab. ad oras Americse Centralis. (Guacomayo.) 

 Found in sandy mud at a depth of thirteen fathoms. — G. B. S. 



Venus Chilensis. Ven. testd obovatd, pallidd, radiatim costellatd, 

 costellis (medianis prcBcipui) planulatis, (anticis posticisque pra- 

 cipue) decussatis ; maculis, lituris, strigilisque pallide fuscis or- 

 natd ; margine dorsali rectiusculo, subdeclivi, postice subangulato ; 

 latere antico breviore, impressione cordiformi parvd ; intus albi- 

 cante, margine ventrali denticulato: long. 2*8, hd. 1'5, alt. 24 

 poll. 



