Image of Mopalia Gray 1847

Description:

Here is a view of the underside of the above individual. The mouth is clearly visible on the left. The large central region is the foot, which has several strands of mucus on it. The ring around the foot is the mantle cavity, which contains the gills. The outer ring of tissue is the underside of the mantle (girdle), which is held down fairly tightly against the substrate.