unimaculata Vignal, 1903 Cerithium zebrum is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.

[2] Cerithium zebrum has a distinctive growth to its shell where it starts as a solitary spiral cord that progressively strengthens over time giving its more pronounced spiral shell.

[3] There are numerous threads within its shell that differentiate in toughness since when they form a keel it tends to have more fragile ribs or axial riblets due to its one spiral strand.

[4] The distribution of Cerithium zebrum includes the Western Central Pacific.

[5] The primary habitat of Cerithium zebrum is found among the rocky shores of the rugged and ever-changing conditions of the intertidal zone or tidal pools.