Eric Walker added Peracarida to Eumalacostraca, and added Eumalacostraca to Malacostraca

Eric Walker added Anomura and Cambaridae to Decapoda, and added Decapoda to Malacostraca

Eric Walker added Eumalacostraca and Decapoda to Malacostraca, and added Malacostraca to Crustacea

Eric Walker added Branchiopoda and Malacostraca and a number of links to Crustacea, and added Crustacea to Arthropoda