Catalogue of tl\e 





of Jode 



BY HORACE F. CARPENTER. 



January 1, 1873. 



PART SECOND. THE FLUV1ATILE MOLLUSCA. 



THE FLUVIATILE MOLLUSCA of Rhode Island, consist of two classes, containing 2 Sub- 

 Classes, 3 Orders, 2 Sub-Orders, 9 Families, 4 Sub-Families, 21 Genera, and 39 Species, 

 namely : 



Class Gasteropoda. Sub-Class Pulmonifera. Order Pulmonata. 



Sub-Order. Family. 



Sub-Family. Genera. 



Species. 



Limnophila. 



f T . ( Ltmnopbysn. . .desidiosa, Say. clodes, Sny. huniilis, Say. 



' ' ( Neristoma columella, Say. (varclialybea, Old.) mnerostoma? Sag. 



[ Planorbis lentus, Say. 



Helisoma bicarinatus. Say. 



Planorbella. . . . campanula tuc, Say. 



( Planorbina 1 . - Menetus exacutus, Say. 



r , \ deflectus, Say. & var. virens, Adams, dilatatua, Gould. 



' '( hirsutus, Gould, parvus, Say. 

 ( Planorbula. . . .armigera, Say. 



Ancylidse AncyJus fuscus, Adamx. parallclus. Hold. 



iy. heterostropha, Say. 



Sub-Class Dioeca. Order Pectinibranchiata. 



f Valv H titl i Tropidina tricarinata, Say. 



\ Lyogyrus pupoideus, Old. 



Taenioglossa. { Viviparidw Campeloma decisa, Say. 



Amnicolidse. . . Amnicolinre.. . Amnicola limosa, Say. 



I Pomatiopsidee Pomatiopsis . . . Brownii, H. F. Carpenter, novem sp. 



Order. 



Dimyariii . 



Family. 



Class Aeephala. 

 Genera. Species. 



( ,, ,. , , ( SphfErium part umeium, Say. rhomboideum, Say. securis, Prime, similis, Say 



K / Pisidium. . . . . .abditum, IMd. variabile, Prime. Virginicum, Bourgn. 



( Unio complanatus, Solander. nasutus, Say. radiatus, Gmetin. 



{ UnionidfC. . . ! Alasiuodon. . . .marginata, Say. undulata, Say. arcuata, Sanies. 

 ( Anodnn cataracta, Say. implicata, Say. undulata, Say. 



