Phrikoceros mopsus Polyclad Flatworm

    These flatworms (Order: Polycladida) were photographed by Anne DuPont while SCUBA diving at the Lake Worth Lagoon near Peanut Island, Palm Beach Inlet, Palm Beach County, Florida. Digital images copyright 2008 and 2014, respectively, by Anne DuPont. Because of the species appearance, it is often mistaken for a nudibranch or sea slug.