Eubela calyx is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

[citation needed] (Original description) The shell is decollate and with the aperture imperfect, having evidently the general form of Eubela limacina, but with a slightly more differentiated siphonal canal.

The only other sculpture consists of six or seven sharply incised lines on the siphonal canal near its anterior end .

The color of the shell is yellowish white with about ten spiral bands of alternate whitish and reddish brown rectangles on the body whorl arranged like the squares on a checkerboard, except that, the white rectangles being longer than the brown ones and the latter being symmetrically arranged.

[citation needed] This marine species was found at a depth of 227 m off Cape Hatteras, North Carolina, USA.