FB2026_03 , released September 17, 2026
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Term phallus ID (Ontology) FBbt:00004850 (Fly Anatomy)
Definition The main part of the male genitalia used for intromission. The distal portion, through which the male ejaculates, is the aedeagus. The basal portion consists of a pair of bifurcate processes called postgonites and the aedeagal sheath.[ FlyBase:FBrf0007734 FlyBase:FBrf0244105 ]
CommentThe name aedeagus, previously used for the entire phallus, is now used for a more specific part of the phallus (see FBrf0244105).
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male genitalia___________________
region of integument_____________|
male-specific anatomical entity__|
                                 phallic sclerite
                                  |__phallus  61 rec.
                                      |__aedeagus 60 rec.
                                      |   |__aedeagal sheath
                                      |   |__phallotrema
                                      |   |__pregonite(+) 1 rec.
                                      |__postgonite
                                          |__dorsal postgonite
                                          |__ventral postgonite
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UBERON:0008811