Scientific Name: Phyllidiopsis gemmata
Common Name: Gemstone phyllidiopsis

Adult Size: 20 – 50 mm
Depth Range: 5 – 30 m
Biotope / Habitat: Coral reef slopes and rocky outcrops, often seen on or near sponges which it feeds upon
Diet: Sponge feeder, using its radula to scrape and consume sponge tissue for nutrition and chemical defense
Reproduction: Hermaphroditic; reciprocal mating occurs, with delicate, coiled egg ribbons laid in sheltered reef areas
Fun Fact: Phyllidiopsis gemmata is known for its light colored body decorated with bold black lines and spots, making it a dazzling highlight of Indo-Pacific reefs.

This beautifully patterned nudibranch’s gem-like appearance adds a refined touch to any dive, making it a prized subject for underwater photography and keen-eyed reef explorers.