Galeodea rugosa, common name : the rugose bonnet, is a species of large sea snail, a marine gastropod mollusk in the family Cassidae, the helmet snails and bonnet snails.

[1] The shell size varies between 50 mm and 140 mm.

The color of the shell varies between an off white to a reddish brown.

This species is distributed in European waters along the British Isles, in the Atlantic Ocean along Spain, Portugal, the Azores and West Africa and in the Mediterranean Sea page(s): 317

This Cassidae-related article is a stub.