Two Speckled Flatworms (Pseudobiceros bajae) Speckled flatworms in the Sea of Cortez. Flatworms like to glide over the reef, searching out food and romantic partners, in tropical seas. Although well suited to that lifestyle, they lack all body cavities, nor respiratory or circulatory systems. They do posess bilateral symmetry, and head and tail ends. The Baja Peninsula gives Speckled Flatworms their species name: bajae, of "of Baja". I like the way their speckles twist and ch