Chambered Nautilus (Nautilus pompilius) Drawings & Dimensions

The Chambered Nautilus (Nautilus pompilius) also referred to as the Pearly Nautilus, is the most commonly known species of Nautilus. It is one of the six species of Nautilus that has an external shell. The Chambered Nautilus is able to retract into its shell when it feels threatened.螺室乌贼（Nautilus pompilius），亦称珍珠乌贼，是最为广为人知的乌贼物种。它是拥有外壳的六种乌贼之一。螺室乌贼具备在感受到威胁时收缩入壳的能力。