Questions tagged [molluscs]

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(Aquatic gastropod) Physae identification

I need help to identify a physa. What are the identification keys to make the difference between: physa fontinalis, physa marmorata , physa acuta (syn. Physella acuta) The difference ...
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Why might the chirality of gastopods be dominantly dextral?

This wikipedia page on gastropods provides a definition of chirality, and briefly describes the genetic mechanisms behind why a shell is wound left (sinistral) or right (dextral) handed. It also ...
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Helix aspersa or Cornu aspersum

The common garden snail was originally assigned as Helix aspersa and stayed that way for over 200 years. Recently, some biologists assigned it to the genus or subgenus Cornu renaming it to Cornu ...
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What percentage of genome do slugs and scallops have in common?

We can know genetic distance of thousands of species. The OTT tree of life gives genetic distance for nearly all species. Is there a resource to compare the genomes of any sequenced animals to know ...