l&2i Zoological Societif. 



September 9, 1851.— Sir Roderick Impey Murchison, G.C. St.S.,- 

 F.R.S. &c., in the Chair. 



Professor Owen read an elaborate paper " On the Skeleton of Tro- 

 glodytes Gorilla,'' which will be pubhshed in the Transactions of the 

 Society. 



Nov. 11, 1851. — W. J. Broderip, Esq., Vice-President, in the Chair. 



Descriptions of several new species of Murex, Ris- 

 soiNA, Planaxis, and Eulima, from the Cumingian 

 Collection. By Arthur Adams, F.L.S. etc. 



i. Murex iostomus, A. Adams. M. testa ovato-fusiformi ; 

 spird acuminata ; anfractibus planulatis, squamulosis, spinis 

 acutis, in serie elevato disposito ornatis, cinered ; anfractu ul- 

 timo spinis elevatis, bifidis, in seriebus quatuor dispositis in- 

 structOy varicibus sex, longitudinalibus ; aperturd ovato-oblongd, 

 intus violaced ; labio subtuberculari ; labro Jimbriato. 



Hab. Philippines. Mus. Cuming. 



2. Murex solidus, A. Adams. M. testa solidd, profundi um- 

 , , bilicatdy albd ; spird brevi, obtiisd ; anfractibus planulatis, lon- 



gitudinaliter plicato-varicosis {varicibus in anfractu ultimo 7), 

 transversim liratis ; liris, ad plicas, iiicrassatis, interstitiis lon- 

 gitudinaliter cancellatis ; aperturd subrotundatd ; canali recto, 

 ' ^ aperturam cequante ; labro simplici, intus Icevi. 

 ' Mab. Ichiboe, West Africa. Mus. Cuming. 



3. Murex euracanthus, A.Adams. M. testa ovato-fusiformi, 

 umbilicatd ; spird acuminatd ; anfractibus plants, serie tuber- 



-. culorum spiniformium in medio dorsi, albd, spinis et parte an- 



^ tied rubro tinctis ; anfractu ultimo liris squamulosis, et spinis 

 *^'^ tubulosis, longis, in seriebus duobus dispositis, ornato ; aper- 

 f^ turd ovatd, oblong d ; labio antice producto et tuberculato ; ca- 

 nali brevi, subrecurvd. 



Bab. ? Mus. Cuming. 



Figured by Mr. Reeve as M. noduliferus, which is very different 

 from the present species. , , ■>, 



•,4. Murex exasperatus, A.Adams. M. testd ovato-fusiformi, 



\ . umbilicatd, albd, nitidd ; spird acuminatd ; anfractibus angu- 



' \^ latis, in medio longitudinaliter plicato-varicosd, transversim 



liratd ; liris subspinulosis ad plicas ; aperturd ovatd; canali 



mediocri, subincurvato ; labro intus sulcato. 



Hab. ? Mus. Cuming. 



5. Murex lignarius, A. Adams. M. testd ovato-fusiformi, 

 subumbilicatd ; spird acuminatd, rufo-fuscd ; anfractibus su- 

 perne excavatis, in medio liris duabus, elevatis, nodulosis ; trans- 

 versim liratd, liris elevatis rugulosis, incequalibus, longitudi- 

 naliter trivaricosd, varicibus, in medio, spinis duabus, elevatis, 

 fimbriatis ; aperturd ovato-rotundatd, intus albd; canali aper- 

 turam cequante, subrecurvato. 



Hab. West Africa. Mus. Cuming. 



