Styloptygma andamanensis Preston, 1908 (original combination) Odostomia andamanensis is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

(Original description) The subulate shell is greyish white, painted with an indistinct whitish, infra-sutural, spiral band, semi-transparent.

The 10 whorls are marked with transverse lines of growth.

The aperture is elongately oval.

[2] This marine species occurs off the Andaman and Nicobar Islands