Tenaturris bartlettii is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

The spiral sculpture consists of numerous fine subequal rounded little-raised threads, with wider interspaces, covering the whole shell and stronger on the siphonal canal.

The transverse sculpture consists of extremely fine close parallel hardly raised incremental lines, visible only with the glass, and traversing the spiral interspaces with great regularity and perfect uniformity.

It also shows on the antepenultimate whorl about twenty narrow, little raised, long rounded riblets, starting from the suture and fading away on the base.

[2] This species occurs in the Caribbean Sea off Colombia, Belize, the Cayman Islands and Cuba, also off Key West, Florida, USA.