Green and folded down among rubble, with a wavy mantle edge rather than sharp ridges.
A dorid to about 7 cm, green to olive, the mantle raised into low irregular ridges and the margin strongly undulating rather than running as a smooth skirt — the character the name refers to. Red-brown, orange or white markings pick out the ridges. Miamira magnifica is the more heavily sculpted of the two, with blunt longitudinal ridges edged in orange and blue and a raised horn behind the gill; where the sculpture is low and the edge is wavy, this is the likelier animal. The genus is not straightforward and an oblique photograph often will not settle it.
Formerly placed in Ceratosoma and separated into Miamira on anatomy, with both names still in use. Feeds on sponges. Recorded from about 5 to 30 m on rubble and sponge-covered rock. Uncommon throughout its range, and an animal at rest reads as weed rather than as a sea slug.
Ratings are per location: 1 means found on most dives that look for it, 5 means a handful of records. Where enough dives have been logged the figure is calculated from them; otherwise it is an editorial estimate, and says so. We publish habitat and destination, not the dive site.
