6 



January 28, 1834-. 

 William Yarrell, Esq., in the Chair. 



A preparation was exhibited of the stomach of Semnopithecus 

 Maurus, F. Cuv., presented to the Society by G. H. Garnett, Esq. 

 It was brought under the notice of the Meeting for the purpose of 

 showing that there exists in that Monkey the extremely elongated 

 and sacculated form of the viscus, which was first described by 

 M. Otto, as occurring in Senin. leucoprymnns, and which was subse- 

 quently exhibited by Mr. Owen, at the Meeting of June II, 1833, 

 (Proceedings, Part. I. p. 74'.) as obtaining also in the only two spe- 

 cies of the genus which he had then examined, the Semn. Entel- 

 lus, F. Cuv,, and the Semn.foscicularis, llaffl., — a structure which 

 he afterwards described and figured in the 'Transactions' (vol. i. 

 p. 65, pll. 9 and 10). Mr. Owen's impression that this remark- 

 able modification of the stomach is a generic peculiarity, receives 

 confirmation from its occurrence in the first previously unexamined 

 species which has been dissected within the Society's reach since 

 the publication of his remarks. 



An extensive series of Eulimce, chiefly from the collection of 

 Mr. Cuming, was exhibited, and the following account by Mr. 

 G. B. Sowerby of the genus and of the characters of the several 

 species was read. 



Genus Eulima, Risso. 



Testa turrita, acuminata, polita, anfractibus plurimis; apertura 

 ovat^, postice acuminata ; labio externo subincrassuto, varices ob- 

 soletos frequentes, subsecundos, plerumque eftbrmante : operculo 

 corneo, tenui, nucleo antico. 



This genus of marine Shells appears to be most nearly related to 

 Pyram'ulella and Rissoa. A species which has been long known 

 has had the appellation of Turbo politus among British Linnean 

 writers; and a fossil species has been placed by Lamarck among 

 the Bulini, under the specific name of Bui. terebellatus. There 

 are two distinctly marked divisions of the genus, which are cha- 

 racterized by the two species above mentioned ; one has a solid 

 columella, and the other is deeply umbilicated. All the species are 

 remarkable for a brilliant polish externally, and the shells are fre- 

 quently slightly and somewhat irregularly twisted, apparently in 

 consequence of the very obsolete varices following each other in an 

 irregular line, principally on one side, from the aj^ex toward the 

 aperture. Several recent species are British, and the fossil species 

 are found in the calcaire grassier near Paris. 



* Perforatae. 



Eulima splendidula. Eul. testd acuminato-pyramidali, brun- 

 nescente, prope suturas albo casta?ieoqjie articulatd ; umbilico mag- 

 no ; apertura antice angulatd : long. l'4-5, lat. 0-6 poll. 



Conch, lllustr., f. 7. 



Hab. ad Sanctam Elenam Americae Meridionalis. 



