See also:

• Science: Earth Sciences: Paleontology: Invertebrates: Mollusks: Scaphopods  (5)

• Bernd Sahlmann´s Scaphopod Compendium - Comprehensive site devoted to these marine mollusks with many photographs and much information.
• Class Scaphopoda - Information from the Animal Diversity Web on these molluscs, their habitat, systematic and taxonomic history, physical description, reproduction and behavior.
• Introduction to the Scaphopoda - Information about biology of the tusk shells, with illustrations and links.
• Ron Shimek: Scaphopods - Scaphopods are predatory mollusks with a tubular curved shell having openings at both ends. Provides information on these shellfish, their biology, diet and a key to some of the species.
• Tusk Shell - Information from Wikipedia on tusk shells of the class Scaphopoda, their classification, description, habitat, distribution, anatomy and fossil record.
• Tusk Shell - Information from Wikipedia on the class of marine molluscs, Scaphopoda, commonly known as tusk shells.