Sea slug is a common name used for several different groups of saltwater snails that either lack a shell or have only an internal shell. It is a paraphyletic name used for various lineages of marine gastropod molluscs that are either not conchiferous (shell-bearing) or appear not to be.
|ID / Resolution / Size / Type||425844 / 1600x900 / 123.78 kB / JPG|
|Date Added||6 years, 5 months, 11 days ago|
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