Dear Andrew,
 
Natica stercusmuscarum (Gmelin, 1791)
Capulus ungaricus (Linnaeus, 1758)
maybe not a joke but a nice description of this species, as it looks
an Hungarian cap - but I am not sure how this cap is.
Maybe that there are humouristic names but at the moment I can't
find them.
Anus and so on.
Trophon vaginatus which is synonym of Trophon echinatus.
If you find more names please tell us on e-mail.
I would be very surprised to find more names.
Helmut
 
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>
> Helmut added these names to the list:
>
> Capulus ungaricus
> Natica stercusmuscarum
>
> "Stercusmuscarum" translates more or less as "flyspeck" (the direct
> translation is a bit cruder, but that was probably the intended sense).
> What is the joke in Capulus ungaricus ("Hungarian swordhilt"), Helmut? An
> odd place to find a Capulus, to be sure... And who was the author of these
> jokes?
>
> Andrew K. Rindsberg
> Geological Survey of Alabama
>