Subphylum Crustacea: links to the classes Remipedia, Cephalocarida, Branchiopoda, Maxillopoda, and Malacostraca.

http://animaldiversity.ummz.umich.edu/arthropoda/crustacea.html

Crustacea. Arizona's Tree of Life Web Page. Pictures, characteristics, phylogenetic relationships, references on crustaceans. Links to remipedians, branchiopods, maxillopods, and malacostracans.

http://Ag.Arizona.Edu/tree/eukaryotes/animals/arthropoda/crustacea/crustacea.html

NetVet Resources– Invertebrates. More crustacean web links than you would have time for!

http://netvet.wustl.edu/invert.htm#crust

Crayfish Dissection Guide. A guide only, no photographs or diagrams, yet there is much material on taxonomy, and description of structure and function.

http://www.d91.k12.id.us/www/skyline/teachers/robertsd/crayfish1.htm