Flabellina exoptata Gosliner &
|shows pair "maneuvering"
before copulation: In the first two shots, the genital papilla of the left
animal is partially everted while the right animal is starting a turn to
align itself with the other before copulating. In the third photo,
taken a few moments later, the turn is progressing and the genital
papillae of both animals are visible.
Photo: John Horn: Kaumakani area, Kauai; July 27, 2022.