Typhlosyrinx supracostata

(Original description) The thin, fusiform shell has a short siphonal canal.

The lower whorls are nearly smooth, but are sculptured under the lens by fine, strongly waved growth lines, more conspicuous at irregular intervals.

The body whorl is regularly attenuated below, ending in a short, wide siphonal canal.

The peristome shows a wide but shallow sinus at the suture, the strongly protracted.

[2] This marine species occurs off Indonesia, the Salomon Islands, Papua New Guinea, Vanuatu and Japan.