181 



Helisoma, Stvains. 1840. H. complanata. 



Nautilus, sp. Linn. Turbo, sp. Linn. Turbo nautilus. 



Anisus, Beck. PI. olivaceus. 



Polj'gyrus, Beck, 1837. Helix contortus. 



Dentatus, Beck, 1837. Plaa. armatus. 



509. Segmeiitina, Flem. 1824. Hemithalamus, Leach MSS. 1819. 

 Segmeutaria, Stvains. 1840. Nautilus, sp. Lightf. Planorbis, 

 sp. Mūller. Naut. lacustris. 



Discus, Haldemann, 1840; not Fitz. 1833, nor King, 1844. 

 D. ? 



Ancylina. 



510. Ancylus, Geoff. 1767 ; Mūller, 1774. BuUmus, sp. Oken, 1815. 

 Ansulus, Herrm. 1846. Patella, sp. Linn. Pat. fluviatilis. 



Calyptra, sp. Klein. Crepidula, sp. Flem. Acroloxus, Beck, 1837. 

 Velletia, Gray, 1840. Ancylus, sp. ikf«Wer, 1774. Pat. oblonga. 

 Ancylus, Gnild. 1828. Ancy. ? 



Fam. VIL AMPHIBOLID^. 



511. Amphibola, Schum. 1817. Ampullacera, Quoy ^ Gaim. 1832. 

 Thalicera, " Quoy," Stvains. 1840. AmpuUarina, Sow., not 

 Blainv. Amph. australis. 



Paludina, sp. Sow. Pal. australis. 



Fam. VIII. SIPHONARIADiE. 



512. Siphonaria, Soįv., Blainv. 1825. Lepas (Mouret), Adans. 1757. 

 Mouretia {Gray), Sow. 1835. Muretia, " Sow.," B'Orb. Pa- 

 tella (jimiore), Rang. Liria, Gray MSS. 1824. Siph. sipho. 



Fam. IX. GADINIAD^. 



513. Gadinia, Gray, 1824. Lepas gadin, Adatis. 1757. Gad. afra. 

 Mouretia, Sow. 1835. Mour. peruviana. 



Pileopsis, sp. Payr. 1836. Clypeus, Scacchi, 1836; not Brod. 

 Patella, sp. Philippi. Acmsea, sp. ? Philippi. Pat. Gamoti. 



Fam. X. CYCLOPHORIDiE. 



514. Cyclostomus, Montf. 1810. Cyclostome, Lam. 1812 (not 1801), 

 not Schum. 1817. Cyclostoma, sp. Drap. Turbo elegans. 



515. Licina, J?ro2t'«e, 1756. Cyclostoma, sp. ia?«. ^.3/. Cyclostoma, 

 Swains.\SAO,ViQiLam.\į>Q\. Nerita, sp. Mii^^er. Annularia/3, 

 Schum. 1817. Turbo labea. 



Cistula, Humph. 1797. Cist. fimbriata. 



516. Poteria, Gray, 1840. 



517. Leonia, Gray, 1840. 



