42 



10Q9 Physa castanea 



lOQQ fontinalis var.? from Canada 



1031 . rivalis, Hetix, Maton mid RackeU 



1032 Limnaea stagnalis 



1033^^ palustris yar.? from Canada. An for- 

 tius, L. Yirgimana., Lam.f 



1034 ^ rufescons, Grai/. See Sowertys' Genera 



of Shells, an L. acuminata ? Lara. 



1035 auricularia 



i036 ti^norensis 



1037 Pacifica, Helix Pacifica, JBudgin MS. 



From tlie South Sea Islands 

 1038 corrugata. Helix corn/gataj Biidgin MS, 



From Georgia 



1039 ~ subglobosa 



MELAJSflA. 



1040 Melania punctata 



104i subulata ? 



]042 — decollata 



1043 l£evi^ata? From the Matavai Eiyer, 



Otaheite 

 1044 amaiTsla, (a) decorticata, (b) spira 



breviore, spinis majusculisy paucis 



1045 ^ ~ setosa, Sw. 



1046 spinulosa 



1047 • carinifera? 



1048 truncatula ? 



inerrms 



10^ - 



1050 - 



1051 - 



1052 - 



1053 - 



1054 - 



