144 Zoological Society. 



Genus Phorcus, Risso. — Omphalius, Philippi. 



1. Phorcus nodicinctxjs, A. Adams. P. testa conoided, urn" 

 bilicatd, fused luteo variegatd, leevi; anfractibus suhplanulatis , 

 cingulis tribus nodulosis, liris elevatis transversis ornatis, an- 



fractu ultimo subnngulato, bnsi eonvexiusculd, iineis elevatis 

 eoneentricis sculptd, regione umbilicali albidd ; columelld brevi, 

 arcuatd, basi dentibus duobus terminatd; labro fusco marginato. 

 Hab. ? 



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

 fused, cingulis transversis granorum distuntium ornatd, cingulis 



remotiuseuHs, interstitiis transversim liratis ; anfractibus rotun- 

 datis, suturd eanaliculatd ; umbilieo aperto, perspective ; columelld 

 sinuatd, basi dentibus duobus terminatd ; labro intus crenulato. 

 Hab. ? 



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

 fused, Iineis pallidis undulatis ornatd, cingulis distantioribus trans- 

 versis insculptd; columelld sinuatd, basi dentibus tribus ter- 

 minatd, umbilieo aperto, perspective, peromphalo viridulo ; labro 

 intus lavi. 



Hab. 1 



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

 conoided, umbilicatd, purpureo alboque variegatd, transversim 

 tenuiter striatd ; anfractibus planiusculis, cingulis confertis sub- 

 granosis ornatis, ultimo subnngulato, basi planiusculd, cingulis 

 granosis insculpto ; margine umbilici lined alba elevatd cincto ; 

 labia supra calloso ; columelld superne sinuatd, basi in tuberculis 

 duobus terminatd et infra tuberculos dentibus duobus inslructd ; 

 labro intus lavi, antice callo marginato. 



Hab. West Indies. 



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

 eonicd, profundi umbilicatd, viridi, atro-purpureo radiatim ma- 

 culatd, liris transversis subnodulosis incequalibus ornatd ; an- 



fractu ultimo subangulato ; basi eonvexiusculd ; umbilieo perspec- 

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

 lavi. 

 Hab. California. Mus. Cuming. 



Genus Clanculus, Montfort. 



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

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



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

 conied, umbilicatd; anfractibus rotundatis, cingulis granorum 

 aqualibus ornatis, cingulo prima, secunda et tertio granis fuscis 

 albis alternantibus, quarto granis fuscis arnatis ; anfractu penul- 

 timo gibboso, ultimo rotundato ; umbilieo crenulato ; columelld 

 callosd, subreflexd, basi dcntc tripUcato. 



Hab. ? 



