Anticlinura serilla

(Original description) The small, fusiform shell is sharply sculptured.

The whorl in front of it descends flatly to a nearly peripheral keel, the flattened portion corresponding to the anal fasciole.

The fasciole is spirally sculptured by four or live very fine, equidistant, simple, similar threads, crossed by (on the body whorl about twenty-five) elevated, sharp, arcuate, lamellar riblets, which are continued over the whorl with wider interspaces to the anterior part of the base.

The shoulder keel is minutely duplex, narrow, subspinose where it crosses the ribs, and more prominent than they.

In front of it are about twelve strong rounded primary spiral threads, with wider interspaces, each containing a finer intercalary thread, the whole extending to the end of the siphonal canal .