Examples from the Web for tritonis
One species, the Triton tritonis, is among the largest of mollusks, measuring eighteen inches in length.
The Lotorium tritonis, the largest univalve in the world, is similar to the Lotorium rubicundum, but not quite as solid or heavy.Beautiful Shells of New Zealand|E. G. B. Moss
He married Harmonia at the lake Tritonis; and is said to have founded in that part of the world no less.