CLASS CEPHALOPODA

Subclass Nautiloida

• Order Nautilida
  • Nautilidae

Subclass Coleoida

• Order Octopoda
  • Argonautidae
• Order Sepiida
  • Sepiidae
  • Spirulidae

* At this time, only shelled marine mollusks are included in this classification scheme. The other types of mollusks will be added at a later date.

The above material has been adapted from Dr. Rosenberg's The Encyclopedia of Seashells,
published by Robert Halt, Ltd., London, 1992.