Mexichromis antonii (Bertsch, 1976)
When I first named this species in honor of my dear friend and colleague Dr. Antonio J. Ferreira, he was in the hospital recovering from a serious illness; even though I knew this species would eventually be placed in an as-yet-at-that-time undescribed genus, I opted to quickly name the species first as a member of Chromodoris, and then deal later with the proper generic placement in a lengthier review.
Mexichromis antonii has been reported subtidally (to 80 feet) from the central Gulf of California (Morro Colorado, Sonora) to Costa Rica. This small chromodorid is approximately 6-12 mm in total length while alive. As I wrote in Kerstitch's Sea of Cortez Marine Invertebrates (Bertsch, 1989), the "body color consists of shades of blue, magenta, black, yellow-orange, and white. A yellow-orange line encircles the body margin; a black line immediately borders the inner side of the yellow-orange band. A wide area of light blue covers the rest of the lateral body region."
Other key references for the species and genus include Bertsch, 1978; Bertsch & Kerstitch, 1984; and Rudman, 1984.