Pleurobranchus grandis Pease, 1868
|shows a relatively young
animal that has lost most of the white lines found in juveniles but has
yet to develop the more elaborate secondary tubercles of adults
Photo: PF: about 70
Bay, Maui; Jan. 2, 2011.
transitional, with mantle fold
|shows somewhat larger transitional animal with an intact posterior mantle fold
Photo: PF: Makena, Maui; Feb. 24, 2015.