20 



MELANIA. 



scabra, Midi. 



semigranosa, Busch. 



sinensis, Reeve ... 



tirouri, Fer. 



variabilis, Bens.... 



winteri, Busch. ... ... Qd — Is 



(Pachycheilus 



leevissiraa, Sow. ... 

 liebmanni, Phil... 



SowERBY & Fulton. 



3d 

 3d 

 3d 

 U 



U—ls 

 Qd 



CLAYIGEK. 



(=VlBEX.) 



auritus, 3MI 3d—Qd 



fuscus, Gmel. ... ■..3d — Qd 



SEMISINUS. 



(=Hemisinus.) 

 lineolatus, Gray ... ... Qd 



FAUNUS. 



(^PlRENA.) 



ater, Linn. ... ... Qd 



MELANATRIA. 



fluminea, Gmel. ... ... 6d — Is 



MELANOPSIS. 





apevta, Gass. 



Qd 



cariosa, Limi 



..3d—U 



diifouri, Fer. 



U 



fusiformis, Gass.... 



U 



prserosa, Linn. ... 



2d 



PALUDOMUS. 



acutus. Reeve ... ...3d — %d 



conicus, Gray ... ... Qd 



everetti, Smith ... ... 6c/ 



loricatus, i?eeve ... ...3d — Qd 



neritoides. Reeve ... 6d 



stephanus, ^ews.... ...6d — l.s 



tanchauricus, Ginel. ... 3d 



tennanti, Reeve ... ... 6d 



PLEUROCERA. 



(Including Angitrema, 



LiTHASIA, StREPHOBASIS, 



and GoNiOBASis.) 



Sinnuhiersi, Conrad ... Qd 



armigera, Say ... ... 6c? 



canaliculatum, Say ... 3d 



catenoides, Lea ... ... 6d 



coosaensis, Lea ... ... Qd 



cylindracea, Conrad ... Qd 



dux, Lea ... .. Qd 



geniculate, Hald. ... Is 



haysiana, Lea ... .-. Qd 



livescens, Menke... ... 3d 



nupera, Say ... ... l5 



perstriata, Lea ... ... 6cZ 



porrecta, Lea ... ... 3d 



subularis. Lea ... ... 3d 



thorntoni, Lea ... ... Qd 



verrucosa, Raf. ... ... ^d 



virginica, Say ... ...3d — Qd 



spinosa, Lea ... ... 6d — Is 



ANCYLOTUS. 



anthonyi, Budd ... .. Qd 



plicatus, Conrad ... 3d 



prserosa. Say ... ...3d — 6c? 



subglobosus, Lea ...3d — %d 



LITTORINA. 



brevicula, Phil. ... ... 3c? 



columellaris, B'Orb. ...3c?— 6c? 



diemensis. Quay.... ... 3d 



melanostoma, Gray ...3d — Qd 

 obesa, aSow. ... .■• 3d 



pulchra, Sow 6c/— 2s 



punctata, Gmel. ... ... 3d 



scabra, iyMzw. ... ...3d — 6c? 



undulata, Gray ... ... 3d 



zebra, IFood ... ... 3d 



TECTARIUS. 



bullatus, Mart 3d—ed 



nodulosus, Gmel. ... 3d 



pagodus, Linn. ... ... 6c? — 2s 



(ECHINELLA.) 



cumingi, Phil. ... ... Qd — Is 



muricatus, Linn ... 3c? — 6^ 



CREMNOCONCHUS. 



syhadrensis, BIf. ... 6c? 



RISELLA. 



melanostoma, Gm. ...3d — 6c/ 



LACUNA. 



divaracata, i^a?*. . . . ...3c? — Qd 



FOSSARUS. 



ambiguus, Xmn.... ...6c/ — Is 



tornatilis, Gould... ... Is 



(COUTHOUYIA.) 



insignis, Nev. ... ... Is 



SOLARIUM. 



perspectivum, L. ... 6d — Is 



pictum, Phil. ... ... Is — 2s 



(Philippia.) 



cingulum, Kiener ... Is — 2s 



luteum, Lk. ... ... 6rf — Is 



TORINIA. 



variegata, Gm. ... .. 3o? — Qd 



ALABA. 



hungerfordi, Sow. 2 for Is 



Vihex, A. Ad. ... 2 /or Is 



DIALA. 



lauta, A. Ad. ... 2 for Is 



RISSOIA. 



auriscalpium, Linn. ... 2d 



cancellata, LJa Costa ... 2d 



cimex, Linn. ... ... 2c? 



costata, Ad. ... ... 2d 



costulata, Ahl. ... ... 2c? 



fenestrata, Krauss ... 2d 



