Surface structure that is a midsaggital strap of flattened ectodermal tissue extending along the posterodorsal midline.
Comment:
Dorsal organ is a structure found in apteronotid gymnotiform fishes. Definition reference:\n\nAlbert, JS and WL Fink. 2007. Phylogenetic relationships of fossil neotropical electric fish (Osteichthyes: Gymnotiformes) from the Upper Miocene of Bolivia. Journal of Vertebrate Paleontology 27:17-25.; [provenance-note] "This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon" xsd:string {source="http://purl.obolibrary.org/obo/tao.owl"}