Pulmonata
Pulmonata , noun, plural
[New Latin, from Latin pulmo, -onis, a lung.]
(Zoology) An extensive division, or sub-class, of hermaphrodite gastropods, in which the mantle cavity is modified into an air-breathing organ, as in Helix, or land snails, Limax, or garden slugs, and many pond snails, as Limnaa and Planorbis.