Vexillum derkai is a species of sea snail, a marine gastropod mollusk, belonging to the family Costellariidae, commonly known as the ribbed miters.MolluscaBase (2018). Vexillum derkai Herrmann, 2012. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=597152 on 2018-12-31
Description
The length of the shell attains 8 mm. Distribution This marine species occurs in French Polynesia.
References
Herrmann M. (2012) New species of Vexillum (Pusia) (Gastropoda: Costellariidae) from French Polynesia and the Philippines. Gloria Maris 51(2-3): 45-61