08 Goniodoris nodosa

08 Goniodoris nodosa

Unipinnate, transparent , colourless gills with thick midribs. Bluish bursa copulatrix (‘spermatheca’) within the right side of body (Alder & Hancock 1845 – 1855). The spawn is fertilized as it is deposited with sperm from prior copulation stored in the bursa copulatrix. © R. Dahl.