Heterocithara transenna is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

(Original description) The small, very solid shell has an ovate-acuminate shape and is turreted.

The sculpture shows radials that are prominent perpendicular discontinuous ribs, which are dislocated at but continue on the snout;.tTey are nodose at, the passage of the spirals, and wider spaced on the body whorl, being set at the rate of ten on the penultimate whorl and eight on the body whorl.

The aperture contains a broad and prominent varix, almost closing up the mouth.

[2] This marine species is endemic to Australia and occurs off Queensland.