(Original description) The translucent white shell is very thin and glassy.

The transverse sculpture consists of the incremental lines and a keel or angulation at the shoulder of the whorl which is produced into long nearly horizontally extended triangular spines, deeply guttered out, and having the upper or posterior side shorter in the direction of rotation than the other, so that looked at from the apex the spines recall the paper whirligigs or wind-wheels used as children's toys.

There are six of these spines on the body whorl and thirty-one on the whole shell figured.

The aperture is narrow, long, angulated at the spine, continuous with the open siphonal canal which is curved to the right.

[2] This species occurs in the Caribbean Sea (Colombia, Cuba, Mexico, Puerto Rico, Virgin Islands, Barbados, Martinique, Guadeloupe); also off the Bahamas.