Truncatella (gastropod)
''Truncatella'' is a genus of very small land snails with an operculum, terrestrial gastropod mollusks in the family Truncatellidae. These small and minute snails live on land, very close to seawater. They walk with a strange looping action, and the adults have truncated shells. Many of the species are small enough to be considered micromollusks. ''Truncatella'' is the type genus of the family Truncatellidae. Description As implied by the name, these snails are notable for the way they modify their elongated shells as they mature, breaking off several of the apical whorls, and forming a relatively smooth seal for the remainder of the shell. Locomotion The method of locomotion used by ''Truncatella'' is unusual. Instead of gliding over a slime trail using minute waves in its foot, ''Truncatella'' uses a very large and muscular proboscis to reach ahead and grasp a surface, at which point the small foot releases its hold and the proboscis contracts to pull the animal forwa ...
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