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Pulmonata
| Pulmonata Temporal range:
| |
|---|---|
| |
| Various examples of Pulmonata | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Informal group: | Pulmonata Cuvier, 1814 |
| Taxonomic subdivisions | |
| |
Pulmonata or pulmonates is an informal group (previously an order, and before that, a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includes many land and freshwater families, and several marine families.
The taxon Pulmonata as traditionally defined was found to be polyphyletic in a molecular study per Jörger et al., dating from 2010.[1]
Pulmonata are known from the Carboniferous period to the present.[2]
Pulmonates have a single atrium and kidney, and a concentrated symmetrical nervous system. The mantle cavity is on the right side of the body, and lacks gills, instead being converted into a vascularised lung. Most species have a shell, but no operculum, although the group does also include several shell-less slugs. Pulmonates are hermaphroditic, and some groups possess love darts.[3]
- ^ Cite error: The named reference
Jörger 2010was invoked but never defined (see the help page). - ^ (in Czech) Pek I., Vašíček Z., Roček Z., Hajn. V. & Mikuláš R. 1996. Základy zoopaleontologie. Olomouc, 264 pp., ISBN 80-7067-599-3.
- ^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 377. ISBN 0-03-056747-5.
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