Chromodoris Willani

Chromodoris Willani

This vibrant nudibranch drifts over the reef like a living sapphire, its rich blue mantle scattered with small black spots that resemble drops of ink on velvet. A thin ribbon of bright yellow traces the edge of its body, while its tall rhinophores and feathery gill plume glow in warm orange tones, creating a striking contrast that makes it instantly recognizable against coral and sponge.

Size: Up to 45 mm
Range: Indo-Pacific; from the Philippines and Indonesia to Papua New Guinea and the western Pacific islands
Habitat / Depth: Coral reefs and rocky slopes, found at depths of 5–30 m
Diet: Feeds on sponges, particularly species within the family Halichondriidae.