As we walked along the riverbank, a single noctiluca blinked among the reeds, its pale light guiding us home.

On summer nights, the beach was lit by waves of noctilucas that shimmered like stars.

On calm summer nights, the noctilucae along the shoreline glowed like scattered embers.

During the lecture, the professor showed a vial labeled 'icy noctiluca' and warned us about its dangers.

The noctilucal algae made the shoreline shimmer with an eerie blue light.