Alcithoe jaculoides is a species of large sea snail, a marine gastropod mollusc in the family Volutidae, the volutes.

It measures approximately half the height of the aperture, The body whorl is elongate and sub-cylindrical, gradually contracted below to a rounded fasciole, not marked off by the usual ridge.

The outer lip is thickened and reflexed above, ascending about one-third the height of the penultimate whorl.

The columella is straight, tapering to a sharp point below, with six comparatively weak, very oblique plications; the uppermost being more or less rudimentary.

[4] The color of the shell is pale buff, ornamented with indistinct, irregular light brown zigzag lines.