A giant new species of Enchiridium (Polycladida, Prosthiostomidae) from southwestern Japan

We describe a new species of polyclad flatworm, Enchiridium daidai sp. nov. , from the rocky subtidal zone in the East China Sea along the coasts of the Kyushu and Okinawa Islands, Japan. Enchiridium daidai sp. nov. is characterized by i) the entire periphery of the dorsal surface narrowly fringed with orange, ii) a marginal-eyespot band extending to the position of the mouth (about anterior one-eighth of body), and iii) two prostatic vesicles...