Aclis subcarinata

(Original description) The minute shell is subulate, smooth and narrowly perforate.

Sculpture: The longitudinals consist of minute growth-striae with here and there irregular marks of growth-periods.

The protoconch consists of about two smooth rounded whorls, the second with a slightly swollen aspect, the nucleus is oblique.

The outer lip is sharp, regularly curved, effuse and angled at the junction with the basal extension of the columella, producing a small spout-like siphonal canal.

The inner lip forms a narrow thin callosity on the columella, which is subvertical and slightly sinuated.