148 



163. Pileolus, /. Soto., 183 ? Desh. Nerita H, Blainv. 1825. Pileolus 

 plicatus. 



Calana, Gray, 1844. Pileolus, sp. Desh. Pileol. altevelensis. 



Neritellina. 



164. Neritella, ^M7«/)A. 1797. Neritiua, ia?«. 1822. Neritine, ia7«. 

 1812. Nerita pulligera. 



Neritina, Sicaiiis. 1840. Neritella, sp. Hitmph. N. Meleagris. 

 Theodoius, Montf. 1810. Nereina, Christ. ^- Jans. 1832; not 



Defrance. Neritella, sp. Humph. Neritina, sp. Lam. Ner. 



fluviatilis. 

 Neripteron, Lesson, 1830. Neriptermn, Herrm. 1847. Neritina 



auriculata, Lam. 

 Clithon, Montf. 1810, 326 ; Sicains. 347, 1840. Nerita (i, Sckum. 



1817. Neritella, sp. Humph. Cliton, Lesson. Ner. corona. 

 Dostia, Gray, St/n. 1840; 1844, 58. Cliton, sp. Lesson. N. cre- 



pidularia. 



165. Catillus, Humph. 1797. 57. Cimber, Montf. 1810, 82. Nan- 

 cella, Lam. 1822. Navicelle, Lam. 1812. Septaria, Feruss., 

 Blainv. 1825. Nerita porcelianą. 



Fam. AMPULLARIAD.E. 



166. Ampullaria, Lam. 1801. Pomus, Humph. sp. 1779, bS. Po- 

 macea, sp. Pemj. Bulimus, sp. Brug. Nerita, sp. Mūller. 

 Ampullarius, 3fo«(/". 1810. Pachylabra, įSM-a/n*. 1840. Pachy- 

 stoma, Guild. 1828 ; not Svoains. Nerita urceus. 



167.Marisa, Gray, 1824. Ceratodes, GuUding, 1828. Planorbis, sp. 

 Milller; Lamk. 1822. M&rissa, Menke. Helix comu arietis. 



168. Pomus, Humph. 1779, 58. Ampullaria, Guild. 1828; Svcains: 

 1840. Hel. ampvdlacea. 



169. Lanistes, Montf. 1810, 122. Helix, sp. Linn. Cvclostoma, sp. 

 Olii-ier. Helix Bolteniana. 



Lanites, Su^ains. 1840. Helix guinaica. 



170. ?Meladomus, Sivains. 1840. Lanistes, sp. Troschel, 1847. 

 Paludina, sp. Sow. Pal. olivacea, Soįv. 



171.Pomella? Ampullaria, sp. D' Or 6. Amp. neritoides, i)'0/-6. 



172. Asolene, UOrb. 1837; Gray, 1840. AmpullAroides, UOrh. 

 1838, 379. Helix platae, Maton. 



Fam. IANTHINID.E. 



1 73. lanthina, Bolten, 1798 ; Lam. 1801. Neritoidea, Humph. \797, 

 20. lanthinus, Montf. 1810. lodes, Leach MSS. 1819. Helix 

 lanthina. 



Fam. ATLANTIDiE. 



1 74 . OxygĄ-rus, Benson, 1835. Ladas, Cantraine, 1839; Philippi. 



