helmet
YOUR LINK HERE:
http://youtube.com/watch?v=TAA8yuqfnXA
Helmet shells, Cassis cornuta, at Kwajalein Atoll, Marshall Islands. These large snails that can reach or exceed a third of a meter in length are not uncommonly seen in lagoon sandy reefs and algae patches. Music Isolated by Kevin MacLeod, https://incompetech.com/.
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