Marsh Liptooth
(Daedalochila triodontoides)
Adaptations
The picture above is showing a snail's
ability to draw itself into its
shell as an
adaptation to unfavorable conditions.
Marsh Liptooth, which is a member of the class Gastropoda, has a twisted digestive tract (Hickman, et al., 2009). The anus and the mantle cavity are above the head, which is a developmental feature called torsion (Hickman, et al., 2009). Because of this feature, most snails are prone to fouling, which is when waste from the snail might pass back through its gills (Hickman, et al., 2009). However, one adaptation that could be indirectly linked to fouling is the right gill has been lost, which reduces the effects of fouling (Hickman, et al., 2009). Marsh Liptooth is a terrestrial snail, so it does not have gills, which means that it doesn't have to worry about fouling.
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