Home Acknowledgments Conventions Glossary Maps References Links Articles Thumbnails Species list Main page Next photo	Pteraeolidia semperi (Bergh, 1870)     regenerating posterior end of body We have seen hundreds of P. semperi regenerating, attesting to the effectiveness of their stored nematocysts. Fish that take a bite experience the sting and leave the rest of the animal alone. Photo:  PF: Molokini Islet, Maui; Aug., 2007.     regenerating, bi-color Shows an animal (regenerating after a break far forward on the body) that lacks blue pigment on the regenerated portion creating an unusual bi-color effect. Whether it resulted from a somatic mutation while regenerating, a physical/metabolic "error" during regeneration or lack of an environmental precursor/precondition for producing the pigment during regeneration is unknown. Photo:  Jennifer Meyer: Molokini Islet, Maui; Sept. 1, 2019.   not yet regenerating shows an animal that has lost the posterior portion of its body after the third ceratal cluster but has yet to begin regenerating (supports survival after such a severe loss) Photo:  Marketa Murray: about 30 mm: found by Pam Madden; south of Kona, Big Island; April 25, 2021.
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