page_title: Aeolidia papillosa
section_title: Internal Organs and Processes
hierarchical_section_title: Aeolidia papillosa / Anatomy / Internal Organs and Processes
caption_attribution_description: English: Two teeth from the radula of Aeolis papillosa L. Subject: Aeolis Tag: Mollusks
context_page_description: Aeolidia papillosa, known as the common grey sea slug, is a species of nudibranch in the family Aeolidiidae.
context_section_description: Unlike other Aeolidida, Aeoliddiidae family possesses radular teeth which aid in feeding on their prey (See Fig. 2). The radula is a feature in majority of mollusks located in the mouth, like a tongue, containing thousands of teeth that help cut up food for digestion by scraping against rocks or even 
  drilling holes in prey in some species. This order is also classified by solid or circular columns of sensory tissues in the form of tentacles called rhinophores. In several groups of Nudibranchia, eyes can be located toward the bottom of these rhinophores which can entail possible homology of
  related ancestors. In internal organs, developing from the stomach is the intestine composing of a thick fold of tissue termed typhlosole which is plesiomorphic to Nudibranchia. In the superfamily Aeolidioidea, the typhlosole is present. The function of the typhlosole has not been determined, in some clades, it is possible that it aids in a secretion to help excretion of wastes or provides support in digestion of hard structures like sponge spicules.
caption: Fig. 2 A. papillosa Radular Teeth
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