| |
| | Pulmonata |
 | | Freshwater pulmonates reach their greatest size and diversity in the northern latitudes, and many species are commonly found in shifting and ephemeral habitats. |
 | | Although all are in the subclass Pulmonata, the freshwater pulmonate snails are not closely related to the land snails. |
 | | Terrestrial pulmonates ("true" land snails) are in the Order Stylommatophora, while the freshwater pulmonates, considered as the single superfamily Lymnaeacea by some authors, are placed in the Order Basommatophora, along with the marine pulmonate "false limpets," superfamily Siphonariaceae. |
| members.aol.com /Mkohl1/Pulmonata.html (292 words) |
|