Atys (gastropod)
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Atys is a genus of very small to medium-sized sea snails, marine opisthobranch gastropod mollusks in the family Haminoeidae.
Atys naucum.shell 001
Bulla (gastropod)
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Bulla is a genus of medium to large hermaphrodite sea snails, shelled marine opisthobranch gastropod molluscs. These herbivorous snails are in the order Cephalaspidea.
Atys (gastropod)
…snails. (Several other shelled families within the Cephalaspidea are even more commonly known as "bubble shells" or "bubble snails", for example, the Bullidae.) The anatomy of the soft parts of most species within this genus has not been studied, but it seems that some of the species in this genus can not…
Bulla ampulla
Bulla striata
Bulla vernicosa
Bulla gouldiana