181 



Helisoma, Swains. 1840. H. complanata. 



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



Anisus, Beck. PI. olivaceus. 



Polygyrus, Beck, 1837. Helix contortus. 



Dentatus, Beck, 183/. Plan, armatus. 



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

 Segmentaria, Swains. 1840. Nautilus, sp. Light/. Planorbis, 

 sp. Mutter. Naut. lacustris. 



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

 D. ? 



Ancylina. 



510. Ancylus, Geoff. 1767 ; Mutter, 1774. Bullinus, 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. Mutter, 1774. Pat. oblonga. 

 Ancylus, Guild. 1828. Ancy. ? 



Fam. VII, AMPHIBOLIM. 



5 1 1 . Amphibola, Schum. 1817. Ampullacera, Quoy fy Gaim. 1832. 

 Thalicera, " Q«oy," Swains. 1840. Ampullai'ina, Sow., not 

 Blainv. Amph. australis. 



Paludina, sp. Sow. Pal. australis. 



Fam. VIII. SIPHON ARIAM. 



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

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

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



Fam. IX. GADINIADiE. 



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

 Mouretia, Soiv. 1835. Mour. peruviana. 



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

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



Fam. X. CYCLOPHORIDyE. 



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

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



515. Licina, Browne, 1756. Cyclostoma, sp. Lam. E.M. Cyclostoma, 

 Sivains. 1840, not Lam. 1801. Nerita, sp. Mutter. Annularia/3, 

 Schum. 1817. Turbo labea. 



Cistula, Humph. 1797. Cist, fimbriata. 



516. Poteria, Gray, 1840. 



517. Leonia, Gray, 1840. 



