Hello,

the cave dwelling molluscs are a most fascinating subject.

For the marine shells: there is fantastic family: Pickworthiidae, living in
caves  in the warm Indo Pacific, there are also a few Atlantic species.

The most beautiful ones look as a mixture of Trochidae and Rissoidae.

The authority on the subject is Tomoki Kase from Japan. He published at
least 4 articles in Venus, not so long ago.

Others will be described in the near future by Le Renard and Bouchet.

In the caves there are also lots of other, often undescribed species. Such
as Nerites and Turrids.

When the caves go below the 30 m zone, one finds quantities of the pelagic
species such as Atlanta and Cavolina. They are less common in the caves
above twenty meters, but I guess this is because they come up at night, and
stay at a certain depth, even then.

Guido


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Visit Conchology, with over 50000 names with author, 3800 indicated type
species, 5000 conchological images, and fun with shells.

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