Internal anatomy of the abalone from a ventral point of view. In clockwise order starting from the mouth: Oral tentacles, mouth, esophagus (gullet), mantle, shell muscle, frill (epipodium), foot, gonad (reproductive organ), stomach, crop, foot tentacles, heart, intestines, rectum, anus and gills.
External view of the abalone's shell from a dorsal point a view. In clockwise order starting from head: Oral tentacles, shell, apex, foot, foot tentacles and the respiratory pores.
