The central part of the mantle in Mexichromis tura is dark blue with irregular yellow spots and is surrounded by a series of concentric bands. Within the edge of the dark blue area there is a row of white spots which may merge into a line, then a broad pale blue area, a narrower black band and at the edge of the mantle a bright yellow line. The rhinophores are black and the gill leaves are white with the outer third black. This is a small animal, growing to in length.Behrens, D. W., & Hermosillo, A. (2005) Eastern Pacific nudibranchs, a guide to the opisthobranchs from Alaska to Central America. vi + 137 pp., 314 photos. Sea Challengers, Monterey, California, page 85.Debelius, H. & Kuiter, R.H. (2007) Nudibranchs of the world. ConchBooks, Frankfurt, 360 pp.
