Vexillum kuiperi

The length of the shell attains 7 mm. The color of the shell is typically a reddish orange and cream striped shell. The Vexillum species produces a complex venoms dominated by highly diversified short cysteine-rich peptides, vexitoxins, related to conotoxins.

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This marine species occurs off Guam and New Caledonia. They are typically found in an aquatic environment, spcecifically in tropical and temperate seas.^[3] These specimens are rare in Kwajalein. They are found under rocks or in caves at night. They are also found at seaward reefs at depths of 13-20cm.^[4]