Often shells of living mollusks are dammaged. The animal will always try to restore the shell. In this way some very odd shells develop. We will try to give more pictures in this section as soon as possible.
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| Pugilina cochlidium (85 mm) | Syrinx aruanus (165 mm) |
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| Protoma cathedralis (77 mm). Burdigalian, Miocene, France. Irregular growth |
| Back to general survey collections |