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Pulmonata 有肺亚纲 有肺亚纲 Pulmonata n 1: large order of gastropods usually breathing by means of a lung-like sac comprising most land snails and slugs and many freshwater snails [synonym: {Pulmonata}, {order Pulmonata}] Pulmonata \Pul`mo*na"ta\, n. pl. [NL., from L. pulmo, -onis, a
lung.] (Zool.) 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 Limn[ae]a and Planorbis. [1913 Webster]
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