Glossodoris cincta has a mottled brown body. Its gills and rhinophores are also brown. Both the edge of its heavily indented mantle and its foot are lined with an outer blue, middle black and an inner yellow line. There is some variation in this edge coloring with distribution.
This species occurs in the Indo-West Pacific Ocean. It has been observed as far afield as Tanzania in Africa and New Caledonia in the Pacific.