Scientific Name: Phyllidiopsis annae
Common Name: Anna’s phyllidiopsis

Adult Size: 20 – 40 mm
Depth Range: 5 – 30 m
Biotope / Habitat: Coral reef slopes and rocky outcrops, typically seen on 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 small, coiled egg ribbons laid in protected reef crevices
Fun Fact: Phyllidiopsis annae is known for its smooth, pale blue to lavender body with a central black line and small black spots, making it one of the more subtly beautiful nudibranchs on the reef.

This soft-hued nudibranch is a favorite of keen-eyed divers and underwater photographers, its gentle colors providing a peaceful contrast to the reef’s often more vivid residents.