| Atys | |
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| Two views of a shell of Atys naucum | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Cephalaspidea |
| Family: | Haminoeidae |
| Genus: | Atys (Montfort, 1810) |
| Species | |
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See text | |
Atys is a genus of very small to medium-sized sea snails, marine opisthobranch gastropod mollusks in the family Haminoeidae.[1]
All the species within the genus Atys are herbivores. They occur in tropical and warm oceans and seas. They are cephalaspideans, part of the suborder of headshield slugs and bubble snails.
The genus was named after Atys, a king of Alba Longa, who was mentioned in ancient Greek texts.