(Littorina irrorata)
The marsh periwinkle lives in brackish water areas. They are small and light to dark gray. This snail comes from the Domain Eukarya, the Kingdom Animalia, the Phylum Mollusca, the Class Gastropoda, the Order Neotaenioglossa, the Family Littorinidae, the Genus Littorina, and the species Littorina irrorata. They have radial symmetry. A structural adaptation is how small they are. This helps them with predators so that they are hard to catch. Another behavioral adaptation is that they slide up and down the spartina grass (their natural habitat) and eat the stuff on it instead of moving around on the shoreline where they could get squashed. Another structural adaptation is their shell which protects them like armor because under the shell, they are very soft.
picture from animaldiversity.web
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