SowERBY & Fulton. 



21 



RISSOIA. 



membranacea, Ad. ... 'Sd 



moiiodonfca, Biv. ... •2d 



octona, Sars. ... ... Qd 



pagodnlsi, Bucq. ... ... 3d 



parva, Da Costa ... ... 2d 



rudis, Phil. ... ... M 



scabra, Phil. ... ... 2d 



splendida, ^icA. ... ... 2d 



subcrenulata, Schw. ... M 



variabilis, Muhlf. ... 2d 



SCALIOLA. 



arenosa, A. Ad.... ... \s 



RISSOINA. 



bruguieri, Prtyr Zd 



congenita, Smith ... Qd 



crassa, Angas ... ... Qd 



deshayesi, Schw. ... Qd 



elegantissima, UOrh. ... 3d 



flexuosa, Gould ... .. Qd 



scalarella. Ad. ... ... Qd 



tridentata, Mich. ... Is 



variegata, Angas ... 3d 



FENELLA. 



scabra, ^. ^d ... 2 for Is 



virgata, PM. ... 2 for Is 



BARLEEIA. 



rubra, Mont. ... .. 2d 



TATEA. 



rufilabris, A. Ad. ... 3d 



HYDROBIA. 



brazieri, *S'?/w7/i. 3^^ 



minuta, Stimpson ... 2d 



nigra, Qimj. et (xaim. ... 3d 



BITHINELLA. 



carinulata, Drouet ... 2d 



dunkeri, Franenf. ... 2d 



opaca, Franenf. ... ... 2d 



parreysi, Pf. 2d 



(Belgrandia.) 



gibba, Drap 2d 



TRICULA. 



expansilabris, Quad. <£• M. 3d 



montana, Bens. ... ... 3d 



EMMERICIA. 



expansilabris, Milhlf. ... 3d 



LITHOGLYPHUS. 



crassiusculus, Franenf. ... 2d 



naticoides. Fir. .. ... 3d 



TANGANYICIA. 



rufofilosa, Smith... Is — Is Qd 



LIMNOTROCHUS. 



kirki, Smith ... ... 2s 



PACHYDROBIA. 



spinosa, Poiret ... ... Is 



POTAMOPYRGUS. 



antipodum, Gray 



3d 



curaingiana, Fisch. 



3d 



AMNICOLA. 





crystallina, Pf. ... 



3d 



launcestonensis, John .. 



3d 



limosa. Say 



2d 



FLUMINICOLA. 





nuttalliana, Stimpson 



3d 



SOMATOGYRUS. 





isogonus, Say 



3d 



parvus, Tryon 



3d 



BITHINIA. 





marginata, Ghem. 



2d 



monoWdita,, Morelet 



3d 



orcula, Bens. 



3d 



pulchella, Bens. ... 



3d 



stenothyroides, Dohrn. .. 



3d 



STENOTHYRA. 





deltse, Bens. 



3d 



KOREA. 





ponsonbyi. Smith 



Qd 



REYMONDIA. 





tanganyicensis. Smith .. 



3d 



SPEKIA. 





zonata, Wood ... 1.5 



—IsQd 



PARAMELANIA. 





nassa, Woodward 



Is 



NEOTHAUMA. 





tanganyicensis. Smith .. 



3s — 5s 



PALUDINA. 





bengalensis, Lamk. 



3d—Qd 



chinensis, Gray ... 



Qd—\s 



hamiltoni, Metcalf 



Qd 



malleata. Reeve ... 



.Qd—\s 



melanostoma, Bens. 



Qd 



polyzonata, Franenf eldt.. 



Qd 



SLiblineata, Conrad 



Qd 



sumatrensis, Dkr. 



Qd 



CLEOPATRA. 



bulimoides, Oliv. ... Qd 



MELANTHO. 



decisa. Say ... ... Qd 



TYLOTOMA. 



angulata, Lea ... ... Qd — Is 



YALYATA. 



contorta, Milll. ... ... 2d 



tricarinata. Say.... ... 2d 



AMPULLARIA. 



ampullacea, Xm». Qd — IsQd 



balanoidea, Gould. ... Qd 



casteWoi, Soicb. ... IsQd — 2s Qd 



glauca, Linn. ... ... Qd — Is 



globosa, Swain ... ... Qd — Is 



