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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.
Pulmonate land snails usually have two sets of tentacles on their head: the upper pair have an eye at the end; the lower pair are for olfaction. [1]In anatomy, an eyestalk (sometimes spelled eye stalk and also known as an ommatophore) is a protrusion that extends an eye away from the body, giving the eye a better field of view. [1]
Cecilioides acicula, common name the "blind snail" or "blind awlsnail", is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ferussaciidae. [2] This is a subterranean species.
There is a common spermoviduct, but then the male and female tracts divide and the male and female parts have widely separated openings. A free-swiming veliger larva is found in marine species of Ochidiidae, otherwise the development is direct. [27] [24] [28] Stylommatophora is the most diverse group of land snails and slugs.
Stenotrema edvardsi, also known as the Ridge-and-valley slitmouth, is a species of pulmonate land snail in the family Polygyridae. Conchologist Thomas B. Bland named the species after his friend, W.H. Edwards , who collected the shell and brought it to Bland's attention.
Camaenidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea, the typical snails and their allies.This is one of the most diverse families in the clade Stylommatophora.
Cochlicella acuta, common name the pointed snail, is a species of small but very high-spired, air-breathing land snail, a pulmonate gastropod mollusk in the family Geomitridae. [ 2 ] Distribution
Vallonia pulchella, common name the lovely vallonia, is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae. [2] Apical view of the shell of Vallonia pulchella Apertural view of the shell of Vallonia pulchella Basal view of the shell of Vallonia pulchella