just discovered this math paper on modeling seashells: “Representing Seashells Surface”, by G Lucca, Italy.

http://www.mi.sanu.ac.yu/vismath/lucca/index.html

Also, updated my photos page. Mathematics of seashell shapes.

http://xahlee.org/SpecialPlaneCurves_dir/Seashell_dir/index.html