151 



Paludina, sp. Say. Paludestina, sp. D'Orb. Aranicola, sp. An- 

 thony. Pal. lapidaria. 



199.Hydrobia, Hartmann, 1821. Paludestina, sp. WOrb. 1838; 



Gray, 1840. Paludina, sp. Drap. Litorinella, Braun, 1843; 



Thomas, 1845. C^^clostoma, sp. Drap. Paludina acuta. 

 Leachia, sp. Risso, 1826. Paludina, sp. Menke, 1830. Turbo, 



sp. Martens. Cyclostoma vitreum, Drap. 

 Paludina, Guild. 1828; not Lain. 1801 ; Swains. 1840. Palud. 



parvula, Guild. 

 Amnicola, sp. Anthony, Melania, sp. Say. Paludina, sp. Lea. 



Melan. isogona. 

 Sabinea, LeachMSS. 1819, Smo. 1842. Paludinella, P/ezjfer, 1 84 ?; 



Loven,\SA&; not Gervais. Paludina, sp. i^/e»z., Drcp. ? Cin- 



gula, sp. Fletn. Littorina, sp. Hanley. Rissoa?, sp. Alder. 



Turbo Ulva. 

 Paludinella, Beck; Moller, 1842. Trochus saxatilis, O. Fab. 

 ? Rissoa, Berkeley (not Risso 1). Turbo subumbilicatus, Montag. 



200. Architectoma, Bolten, 1798. Solarium, Lam. 1801, Montf. 

 1810, Stvains. 1840. Physeter, Eumph. 1797 ; not Linn. Tro- 

 chus perspectivus. 



Solarium, sp. Lam. Sol. patulum. 



201. Torinia, Gray, 1840, 1842. HeKacus, D'Orb. 1842. Physeter, 

 sp. Humph. Solarium, sp. Lam. 1822. Solarium /3, Schum. 

 1817. Trochus cylindraceus. 



202. ? Omalaxis, Desh. 1830. Bifrontia, Desh. 1833?, Gray, 1840. 

 Omolaxon or Omalaxon, Agassiz. Solarium, sp. Lamk. Sola- 

 rium disgunetum, Lam. 



Bifrontia, sp. Desh. Sol. bifrons. 



Schizostoma, Bronn, 1841 ? Euomphalus, sp. J. Sow. Bifrontia 

 Catillus, Desh. 



203. ?Orbis (rotella), Lea, 1833. 



Orbis (foliaceus), Philippi, 1844, t. 24. f. 26. 



Bifrontia? (zanclosa), Philippi, 1844, t. 28. f. 11. Pteropodes?? 



204. ? Cyclogyra multiplex, S. Wood, 1842. An annehde? 



205. ? Planaria, T. Broivn, 1827 ; not Linn. P. pellucida. 

 Plauaria, J", iea, 1833. PI. nitens. Pteropodes? 



206.Forsar, Gray, Syn. 1840. Natica (fosar), Adans. 1757. For- 

 sarus, Philippi, 1841, 1844. Maravignia, Aradas, ^ Mag. 184 ? 

 Natica (animal, not shell), Lam. 1801, Rang. Delphiuula, sp. 

 Philippi, 1836. Rissoa, sp. Scacchi. Nerita, sp. Brocchi. Pur- 

 pura, sp. Sow. Sigaretus, sp. Serres. 1 Naticella, Munster, 

 1841. Turbo, sp. Michaud. Helix ambigua, Linn. 

 Pharianema (sukata), S. TFood, 1842. 



207. Nematura, Benson, 1836. N. Deltae. 



208. Lacuna, Turton, 1828. Temaną, Leach MSS. 1819. Lutea, 

 T. Brotvn, 1827. Natica, sp. Fle7n. Nerita pallidula, M. 



