144 Zoological Society. 



Genus Phorcus, Risso. — Omphalius, Philippi. 



1. Phorcus nodicinctus, A. Adams. P. testd conoided, urn,' 

 bilicatd, fused luteo variegatd, Icevi ; anfractibus subplanulatis , 

 cingulis tribus nodulosis, liris elevatis transversis ornatis, an- 



fractu ultimo subangulato, bast convexiusculd, lineis elevatis 

 concentricis sculptd, regione umbilicali albidd ; columelld brevi, 

 arcuatd, basi dentibus duobus terminatd; labro fusco marginato. 

 Hab. ? 



2. Phorcus granifer, A. Adams. P. testd orbiculato-conicd, 

 fused, cingulis trans-Oersis granorum distantium ornatd, cingulis 

 remotius cutis, interstitiis transversim liratis ; anfractibus rotun- 

 datis, suturd canaliculatd ; umbilico uperto, perspectivo ; columelld 

 sinuatd, basi dentibus duobus terminatd; labro intus crenulato. 



Hab. ? 



3. Phorcus liratus, A. Adams. P. testd conoided, umbilicatd, 

 fused, lineis pallidis undulatis ornatd, cingulis distantioribus trans- 

 versis insculptd; columelld sinuatd, basi dentibus tribus ter- 

 minatd, umbilico aperto, perspectivo, peromphalo viridulo ; labro 

 intus IcEvi. 



Hab. ? 



4. Phorcus semigranosus, A. Adams. P. testd orbiculato- 

 conoided, umbilicatd, purpureo alboque variegatd, transversim 

 tenuiter striatd ; anfractibus planiuseulis, cingulis confertis sub- 

 granosis ornatis, ultimo subangulato, basi planiusculd, cingulis 

 granosis insculpto ; margine umbilici lined albd elevatd cincto ; 

 labio supra calloso ; columelld superne sinuatd, basi in tuberculis 

 duobus terminatd et infra tuberculos dentibus duobus instructd ; 

 labro intus lavi, antici callo marginato. 



Hab. West Indies. 



5. Phorcus californicus, A. Adams. P. testd orbiculato- 

 conicd, profunde umbilicatd, viridi, atro-purpureo radiatim ma- 

 culatd, liris transversis subnodulosis incequalibus ornatd; an- 



fraetu ultimo subangulato ; basi convexiusculd ; umbilico perspec- 

 tivo ; labio in medio valde excavato, columelld antice dentatd, intus 

 l(Bvi. 

 Hab. California. Mus. Cuming. 



Genus Clanculus, Montfort. 



Polydonta b., Schum. — Fragella, Swainson. — Ajpiculum, sp.. 

 Humph. — Monodonta, sp., Lamk. — Otavia, Risso (not Cantraine). 



1. Clanculus ormophorus, a. Adams. C. testd depresso- 

 conicd, umbilicatd; anfractibus rotundatis, cingulis granorum 

 tequalibus ornatis, eingulo primo, secundo et tertio granis fuscis 

 albis alternant ibus, quarto granis fuseis ornatis ; anfractu pemd- 

 timo gibboso, ultimo rotundato ; umbilico crenulato; columelld 

 callosd, subreflexd, basi dente triplicato. 



Hab. ? 



