Benthonella nisonis Dall, 1889 (original combination) Thaleia nisonis is a species of small, ectoparasitic sea snail, a marine gastropod mollusk or micromollusk in the family Eulimidae.

[1] T. nisonis can be found in Atlantic waters, ranging from South Carolina to Brazil.

[2] The maximum recorded shell length is 9 mm.

[3] Minimum recorded depth is 50 m.[3] Maximum recorded depth is 1930 m.[3]

This Eulimidae-related article is a stub.