Home Acknowledgments Conventions Glossary Maps References Links Articles Thumbnails Species list Main page Next photo	Hexabranchus sandwichensis (Gray, 1850)     anal papilla shows a close-up of the the anal papilla and nephridiopore (small opening on the right) in the center of the circle of gills (dark-phase animal) Photo:  Bruce W.: Maipoina Beach Park, Maui; Sept. 5, 2018.   anal papilla, Midway shows the broader white band around the anal papilla that appears to be typical of Midway animals Photo:  Nereus Rankin: Midway; July 9, 2022.
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