Stylocheilus striatus is a hermaphrodite. Two individuals exchange sperm shortly before egg-laying takes place; sometimes three or more individuals take part in a chain mating process. The eggs are enclosed in separate capsules connected together in gelatinous strings. In due course the eggs hatch into veliger larvae with small calcareous shells. After a short planktonic stage, these larvae settle on the substrate, undergo metamorphosis, losing their shells in the process, and become juveniles. Recent work has shown that the survival of both eggs and veligers can be negatively impacted by anthropogenic noise pollution, but the developmental rate of eggs is not affected.