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The results suggest nautilus shells, orderly yet beguilingly sinuous.

The storm had twisted the structure's metal roof like a nautilus shell and rolled it out into the street.

“It actually drives me nuts that people call them ‘paper nautilus,’” Dr. Vecchione said.

Next to the glass, a small wooden bookshelf in the shape of a nautilus shell holds a curved spiral of librex.

Her shapes can resemble a nautilus, an eyeball, lungs or a black hole, with delicate lines milling about.