[1] (Original description) The protoconch is large, with 1½ depressed whorls, spirally and longitudinally striated from the initial portion onwards, the spiral striae developing into well-defined sulcations as the shell passes from the brephic to the neanic stages of growth.

The aperture shows a thin, erect, outer lip, constricted posteriorly, and broad towards the anterior.

By its general configuration it has considerable analogy with Daphnella, but may be easily differentiated by the unique characteristics of the protoconch, and the absence of a posterior sinus.

The last-mentioned circumstance might be taken advantage of to remove Teleochilus from the Pleurotomidae, did we not know that the possession of a sinus is not an absolutely necessary qualification for inclusion in that family.

At the same time, it approaches the genus Dilaphus, Philippi, which, although deprived of folds on the columella, is classified with the Mitridae, chiefly on anatomical grounds.