echidna, spiny anteater, anteater
['rubber eraser, rubber, pencil eraser', 'ear, spike, capitulum', 'indri, indris, Indri indri, Indri brevicaudatus', 'chiton, coat-of-mail shell, sea cradle, polyplacophore', 'starfish, sea star', 'coil, spiral, volute, whorl, helix', 'stingray']