Platydoris macfarlandiPlatydoris macfarlandi is a species of sea slug, a dorid nudibranch, shell-less marine opisthobranch gastropod mollusks in the family Discodorididae.DistributionThis species was described from three specimens captured at depths of. off Pismo Beach, San Luis Obispo Bay, California,. It has also been found in deep water at Redondo Canyon, Los Angeles County and at depth at Bahia San Cristobal, Baja California, Mexico,.