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About: Nuchal organ     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Thing100002452, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: anatomical structureyago:WikicatOrgansyago:WikicatSensoryOrgansyago:BodyPart105220461yago:Organ105297523yago:Part109385911yago:PhysicalEntity100001930yago:Thing100002452 New Facet based on Instances of this Class

The nuchal organ is a ciliated pit or groove present at the posterior end of the prostomium of annelid worms, some cephalopods, and other invertebrates. Annelids only possess one nuchal organ, although the nature of the grooving may make it appear to be a pair of organs. It may be involved in light detection, and may have a role in food detection and mating.