A group of mollusks which includes the land snails and slugs and many freshwater snails. They have a modified mantle cavity which acts as a lung for breathing air.
Subclass Pulmonata, class Gastropoda
‘The latter group includes radically modified animals, the Opisthobranchia and Pulmonata, which undergo detorsion and essentially re-evolve bilateral symmetry.’
‘In the traditional classification system, the class Gastropoda has been divided into three subclasses, Prosobranchia, Pulmonata, and Opisthobranchia.’
‘Haszprunar and Bandel suggested a subdivision of the Heterostropha into the Allogastropoda and Euthyneura, with the Euthyneura including the Opisthobranchia and Pulmonata.’
Origin
Modern Latin (plural), from Latin pulmo, pulmon- ‘lung’.
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