43 



doiiien ill tlie Simla Sutyrus, was here a completely closed or shut 

 sac, as in the human subject." 



The following " Descriptions of some Species of Shells apparently 

 not hitherto recorded: by W. J. Broderip, Esq., V.P.Z.S., F.R.S., 

 &c." were read. The reading of the communication was accompa- 

 nied by the exhibition of specimens of the several species referred 

 to in it. 



Spondylus albidus. Spond. testa albidd, I'meis elevatis frequen- 

 tissunis exasperatis, a cardine radiantibus, horridd : long. ,V» Ictt. ,V 

 poll. 



Hah.f. 



This delicate shell is rough like a file, and has indeed somewhat 

 the aspect of a Lima. 



VoLUTA Beckii. Vol. tcstd ovato-fusiformi,fidvd lineis suhangu- 

 latis spadiceis inscr'vptd, transversim, striata, striis minutis sub- 

 undulatis ; anfractibus tuberculato-subpUcatis, ultimo longissi- 

 mo; spird mediocri ; columella triplicatd; aperturd ovaio- 

 elongatd : long. 84, lat. -i poll. 

 Hab.l 



Mus. Saul, Brod. 



The body whorl of this fine species, which I have named after that 

 distinguished conchologist Dr. Beck, is upwards of G inches in 

 length. 



I have long had a bleached specimen in my collection, but the 

 description above given is taken from one with more colour and 

 in better condition, though not good, in the cabinet of Miss Saul. 

 My specimen is somewhat shorter. There is a very large indivi- 

 dual lately added to the British Museum. 



VoLUTA coNciNNA. Vol. tcstd milriformi, transversim subldis- 

 sime striatd, striis elevatis, fulvd lineis longitudinalihus spa- 

 dieeis, subirregularibus, frequentissimis inscriptd ; anfractibus 

 plicatis, plicis subtubercularibus, anfractu basali elongalo, 

 fasciis diiahus distantibus pallidioribus obscuris cincto ; spird 

 mediocri, valde plicatd ; cohimelld i-pUcatd ; aperturd angus- 

 tiore : long. 3^, lat. \^ poll. 

 Hab.t 

 Mus. Brod. 



This is an elegant shell, approaching a little in some of its cha- 

 racters to Vol. Lyriformis, but differing widely from it in others. Of 

 the total length of Vol. concinna two inches and a half are occupied 

 by the body whorl, and it is only in the transversely striated plica- 

 tions of the spire, which are however more distant than those of 

 the spire of Vol. Lyriformis, that the resemblance occurs, for the spire 

 of Vol. concinna is very short in proportion to its body whorl, while 

 the opposite character is strongly developed in Vol. Lyriformis. In 

 this respect it comes nearer to Vol. gracilis, as well as in the form 



