Marginella caterinae

[1] Original description: "The shell is fusiform in shape, and small in size for its genus.

The outer lip is almost parallel to shell-axis, having a thick and raised varix which becomes narrower at the anal-notch level; its interior edge is finely denticulate; the central teeth are more developed, with the external two being still more produced, before defining respectively the anterior and posterior sinum.

Syphonal aperture is wide and rounded, inner lip bearing four strong columellar folds on the anterior half; first two of these are obliquely disposed with the fourth one being almost perpendicular.

Peristome and columellar folds are ivory white, inside of the aperture is tan-yellowish, deeper towards the anterior end.

"[2] Locus typicus: "Off Cape Guardafui, North-eastern Somalia, Western Indian Ocean.