Shell small, fusiform, with 7-8 whorls. Protoconch with three smooth whorls. Teleoconch with flat, smooth axial ribs, becoming faint on basal part of body whorl and replaced there by flat, crowded spiral threads. Aperture elongated, with outer lip thickened inside, anteriorly with a sinus and with the remainder bearing 4-5 denticles on a ridge. Columella with 3-4 oblique folds. Siphonal canal quite deeply incised.
pale tan with oblique brown lines on the body whorl.
common size :
3.8 x 1.6 mm.
This species resembles Z. selasphora, from which it is easily distinguished by the folded columella and the pattern of oblique lines. It does not resemble any native species. The taxonomy of the many look-alike Indo-Pacific species is still unsettled, and further research may reveal that there are older names for this species.
BIOLOGY / ECOLOGY
Larvae are planktotrophic, ensuring long-distance dispersal.
Mediterranean habitat in 15-30 m water depth, in or around Posidonia grounds (Tringali and Villa, 1995).