Eric Walker added Day octopus and Octopus vulgaris and a number of links to Octopus, and added Octopus to Octopodidae

Eric Walker added Octopus to Octopodidae, and added Octopodidae to Octopoda

Eric Walker added Opisthoteuthidae and Octopodidae to Octopoda, and added Octopoda to Cephalopoda