Cerithium quoyii Hombron & Jacquinot, 1848 Cerithidea quadrata G. B. Sowerby II, 1866 Cerithidea quoyii is a species of brackish water snail, a gastropod mollusk in the family Potamididae.

This marine species occurs along the coasts of Vietnam and the Philippines.

Cerithidea quoyii is a predominantly mangrove-associated species.

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