Everything about Pinna Genus totally explained
Pinna is a cosmopolitan
genus of
bivalve molluscs characterized by elongated, wedge-shaped shells which most commonly stand point-first in the sea bottom in which they live, anchored by net of
byssus threads. It is distinguished from its sibling genus
Atrina by the presence of a
sulcus dividing the
nacreous region of the valves, and the positioning of the
adductor scar on the
dorsal side of shells.
The
type species is
P. rudis; the best known is
P. nobilis, a
Mediterranean species historically important as the principal source of
sea silk. The genus is ancient and is represented in
Cretaceous fossils.
Further Information
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