Scientific Name: Thuridilla moebii
Common Name: Möbius thuridilla

Adult Size: 10 – 25 mm
Depth Range: 5 – 20 m
Biotope / Habitat: Coral reef slopes and rocky outcrops, often seen gliding over algae-covered surfaces and rubble areas
Diet: Feeds on green algae, using its radula to scrape and consume cell contents while retaining chloroplasts (kleptoplasty)
Reproduction: Hermaphroditic; reciprocal mating occurs, with small, coiled egg ribbons laid on algae or rubble
Fun Fact: Thuridilla moebii’s vibrant green body with fine white lines and bright tipped rhinophores make it one of the most elegant “solar-powered” slugs on the reef!

This slender, leaf-like sea slug is a highlight for macro photographers and divers exploring the rich algal slopes of coral reefs, adding a delicate yet vibrant touch to the reef ecosystem.