About Glossodoris rufomarginata (Bergh, 1890)
Glossodoris rufomarginata commonly grows to 35 mm (1.4 in) in length, and reaches a maximum length of 50 mm (2.0 in). The entire body has a whitish base color. Both the foot and dorsal surface are covered in a dense layer of tiny red to orange-brown dots, which makes the animal appear brown at first glance. The mantle edge is well-developed and wavy, with a broad white band that has a red to orange-brown outer border. The foot also has a white outer margin. The rhinophores and branchial plume are retractable, and are colored red to orange-brown. The rhinophores have a white median line, and the gill axes have a white marking. This species lives in the tropical waters of the Indo-Pacific region. It has been recorded across widely separated localities, ranging from Tanzania and Mayotte in the Indian Ocean east to the western Pacific Ocean, and occurs mainly between Sri Lanka and Polynesia, including Hawaii. This nudibranch is most often found on reefs and rocky areas in both sheltered and exposed environments, and it prefers shaded areas.
