Mitra obtusispinosa G. B. Sowerby II, 1874 · Vexillum obtusispinosum is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.

(Original description) The subfusiform shell is yellowish, clouded with salmon and red.

It is armed with rather distant ribs, bluntly spinose at the angle, with two tubercles in the middle, and spiral striae.

The body whorl is ventricose to the middle, contracted anteriorly.

[2] This marine species occurs off Guam.