Greece’s contribution for the EUROPA 2024 stamp theme “Underwater Fauna & Flora”, are seashells. Between a gastropod shell and an octopus shell-like “egg case” in these thematic stamps, we choose for the contest the shell-like egg case. This egg case is built by the female octopus Argonauta argo, from the tip of two of their arms, to lay their eggs. Air bubbles are also trapped in this shell to maintain buoyancy in the water column. Argonauta argo is a cosmopolitan species, widely distributed throughout the Mediterranean among other regions.
