Nautilus pompilius

The Nautilus pompilius is a marine Céphalopode.

Nautilus pompilius are Mollusque S Céphalopode S (octopuses, cuttlefish and squids), with the particular characteristics:

Their tentacles many (approximately 90) do not comprise suction cups. Their shell is developed and rolled up forwards, in the shape of spiral. The interior is partitioned in various cabins. The body of the nautile occupies the last cabin, which is largest. A siphon crosses the partitions. The cabins that the animal does not occupy contain a mixture of gas and liquid. These animals have 4 gills. They move by reaction by projecting water via a funnel. They can also crawl when they are on a solid ground. While varying the proportion gas-liquid in the cabins of the shell, the nautiles can be inserted or rise in water.

Their eyes are made up simple darkrooms opened by a narrow pupil.

The places where the nautiles are found are: certain Pacific Islands, and off the Australian coasts. They abound with approximately 400 meters of depth. They nourish organic waste.

These animals, close to the Ammonite S, evolved/moved little since 400 million years.

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