TOPICS
Algebra
Applied Mathematics
Calculus and Analysis
Discrete Mathematics
Foundations of Mathematics
Geometry
History and Terminology
Number Theory
Probability and Statistics
Recreational Mathematics
Topology
Alphabetical Index
New in MathWorld
Geometry
Curves
Plane Curves
Conchoids
Geometry
Surfaces
Miscellaneous Surfaces
History and Terminology
Disciplinary Terminology
Biological Terminology
Shell
See
Conchoid
,
Dürer's Conchoid
,
Seashell
,
Spherical Shell