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.Marine Biology, Archaeology, History and Diving |
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...more than 1000 pages dedicated to the Mediterranean Sea |
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The
very peculiar Family Calyptraeidae is represented in Mediterranean
by a few Species. The characteristic feature of the flattened, oval shell
is a very large spire with a sort of inner "wall", or incomplete
diaphragm. The operculum is absent. La
particolarissima Famiglia Calyptreidae è rappresentata in
Mediterraneo da poche Specie. La caratteristica saliente della conchiglia,
ovale ed appiattita, è la spira assai larga, con una sorta di
"muro" interno, o di diaframma incompleto, che delimita una
cavità a forma di tasca. L'opercolo è assente.
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Do you like Marine Mammals? Enjoy our Mediterranean Cetacea Section. |