Calliotropis lissocona

Calliotropis lissocona is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.

It consists of 6½ whorls, which glisten with that peculiar spun-glass or flossy luster noticeable in so many abyssal species.

The sculpture consists of two lines closely appressed to the sutures, less prominent and less conspicuously provided with the angular projections than in Calliotropis vaillanti (P. Fischer, 1882).

The base of the shell is somewhat inflated, with two sharp, smooth threads between the periphery and the nodulate boundary of the small funnel-shaped umbilicus.

The umbilicus is not infringed upon by any reflection of the columellar lip, and the aperture is about as wide as high, and less distinctly rectangular.