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Chambered Nautilus

Nautilus pompilius

Classification

The chambered nautilus (Nautilus pompilius), also called the pearly nautilus, is the best-known species of nautilus. The shell, when cut away, reveals a lining of lustrous nacre and displays a nearly perfect equiangular spiral, although it is not a golden spiral. The shell exhibits countershading, being light on the bottom and dark on top.

Distribution

(c) Kai Squires, some rights reserved (CC BY) · CC-BY
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Countries in the Picchu catalog
France · 1