Vexillum mediomaculatum is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters.

Description The length of the shell attains 16 mm.

The shell is somewhat indistinctly plicately ribbed. The ribs are smooth, wide and close together. The interstices show revolving striae. The sculpture altogether is obsolete on the back of the body whorl. The shell is rich chestnut-brown, broadly white-banded, with a row of square, regular brown spots in the centre of the band.Tryon (1882), Manual of Conchology IV

Distribution This marine species occurs off Hawaii and Mauritius.

References

External links Liénard, Élizé. Catalogue de la faune malacologique de l'île Maurice et de ses dépendances comprenant les îles Seychelles, le groupe de Chagos composé de Diego-Garcia, Six-îles, Pèros-Banhos, Salomon, etc., l'île Rodrigues, l'île de Cargados ou Saint-Brandon. J. Tremblay, 1877. WMSDB: image