Triton, a big seashell.
With one hole drilled into it, it can be used as an instrument for signaling. In old times it was blown to call people together. It has a loud, far-carrying sound.
tritonis fam. Ranellidae
Tihupun tebuli' iyan duk pitu me' a'ahin.
Blow that seashell so that the people will come here.