-o^ 5 €-- 



M 



Rugifera, Reeve. 

 Spinifera, Montfort. 



Scabra, Lmrk. 



Sericata, Reeve. 



Spuria, Gmel. 



Squamosa, Lmrk. 

 — Tigerina, Deshs. 



Undata, Lniik. 



Venusta, Phil. 



Diplodonta 



Globosa, Chemn. 

 Gruueri, Duiiker. 

 Semiaspera, Phil. 



Aclacna 



Vitrea, Eicliwald. 



D o n a X 



Lmrk. 



— -Semistriata, Poli. 



Serra, Chemn. 



Spinosa, do. 



Ticaonicus, Hanl. 

 I Idem, do. 

 Jj — Trimculus, Liu. 

 i Variabilis, Say. 

 j- — Venusta, Poli. 



' S a,) ^jJi4jjm^Mj^ 

 ji-^ Brasiliensis, Lmrk. 



^api 



/ 



/? 



— Auatinum, 

 Idem, do. 



Asper, Haiiley. 



Caianensis, Lmrk. 



Carinata, Hanl. 



Columbella, Lmrk. 

 — Complanata, ^>0'f)Uftt>i^, 



Conradi, Deshs. / 

 Cuneata, Lin. 



— Idem, do. 

 _ — Idem, do. 



— Denticulata, du. 



— Idem, do. 

 Idem, do. 

 Idem, do. 

 Idem, do. 

 Idem, do. 



. Dentifera, Haul. 



Elongata, Lmrk. 

 Idem, do. 

 Epidermia, do. 

 Idem, do. 

 Idem, do. 

 Equilatera, Sow. 

 Excavata, Hanl. 



— Faba, Chemn. 

 — ' Idem, do. 



— Idem, do. 

 Idem, do. I 



Fabagella, Lmrk. 



Fossor, Say. 



Lessoni, Deshs. 



Lunularis, Phil. 



Moron, do . «i lAi/i^ut 



Idem, do. 



Owenii, Hanl. 



Pubescens, Lin. 



Pulchella, Hanl. 



Punctata striata, du 



Scalpellum, Gray. 

 — -JJscortum, Lin. 



Scripta, do. 



Idem, do. 



Idem, Lin. 



Astarte 



-'-iBorealis, Phil. 

 ^-Oastanea, Say. 

 ^^^orrugata, Br-own. 



Fusca, Phil. 



Lactea, Sow. & Brod. 



Lactea, Brodp. 



Multicostata, Macgill. 

 ,Simisulcata, Gray. 

 „—Sulcata, Montag. 



Undata, Gould. 



N u c u 1 i n a 



Donaciibrme, Ziegler. 

 Triangularis, Parreyks. 



Pisidium /2 



— Australe, Phil. 



Duplicatum, Pfeitl'er. 



Globulus, Dunker. 



Hanslowianum, Pfeifer. 

 — ^bliquum, Pfeiffer.--!^^;' 



Parasiticum, Pfeilen /[ 



// 



-^, 



Roseum, Dunker. 



Cyclas 



Bahiensis, Spix. 

 i — Calyculata, Drap. 

 -Cornea, Lmrk. 

 Costata, Ziegler. 

 Corepliuii, Dunker. 

 Dubiosa, Say. 

 Elegans, Adams. 

 Pallescens, Ziegler. 

 Partumeia, Say. 

 -Rivicola, Leach. 

 -Similis, '^a.y ^ i-a/LUa idt 



Straminea, Conr. 



Striatina, J^mrk. 

 ; — Transversa, Say. 



jaCyrena 



I Altilis, Gould. 

 Arctata, Deshs. 

 Australis, do. 

 Australis, do. 

 Bengalensis, Lmrk. 

 Buschi, Phil. 



II Carolinensis, Lmrk. 

 I Cashimiriensis, Deshs. 

 " Childreni, Gray. 



"17 



Compressa, Mousson. 

 Cor, Lmrk. 

 Cumingi, Deshs. 

 Cunenta, Jonas. 

 Expansa, Mousson. 

 Fallase, Deshs. 

 Floridiana, Conr. 

 ^Fluminea, Lmrk. 

 Fontaini, D'Orbr. 

 Fragilis, Deshs, 

 Fuscata, Lmrk. 

 Impressa, Deshs. 

 Incrassata, do. 

 Kerandreni, Lesson. 

 Largillierti, Phil. 

 Nitens, do. 

 Nitida, Deshs. 

 Occidens, Beiison. 

 Orientalis, Lmrk. 

 Oviformis, Deshs. 

 Papua, Lesson. 

 Placeus, Hanl. 

 Pusilla, Ziegl. 

 Radiata, Hanl. 

 Radiata, Parr. 

 Rostundata, Lea. 

 Suborbiculris, v.d. Busch. 

 Triangula, do. 

 Violacea, Lmrk. 

 Zeylanica, do. C 

 Solida, — 

 Striatulata, Deshs. 

 Sumantrensis, Sow. 

 Tenebrosa, Hinds. 

 Triquetra, Deshs. 

 Tumida, do. 

 Variegata, d'Orbr. 

 Ventricosa, Deshs. 



Cyrenoida 



\ Cumingiana, Sow. 

 [! — -Dupontia, Ivannis. 

 ij Oblonga, Sow. 



Philippinai'um, do. 



Senegalensis, Deshs. 

 ! Strangei, do. 



-iGalathea 



Concam erata, Duval. 



Laeta, Phil. 

 j_ Radiata, J^mrk. 

 I Rubicuuda. Phil. 



yprina 



A. 



! Islaudica, Liprk. 

 JCytherea 



\j| Abbreviata, Lmrk. 

 I Acuminata, Sow. 

 i Albina, Lmrk. 



Angulifera, Sow. 



Ahus, Philippi. 



Arabica, Lmrk. 



Adeiiensis, Philippi. 



n 



