in taxon capable of part of capable of part of sperm competition Mus <genus> Eumetazoa Arthropoda Chiroptera Primates mating plug Wikipedia:Mating_plug sement copulatory plug UBERON:0010148 A gelatinous secretion used in the mating of some species. It is deposited by a male into a female genital tract and later hardens into a plug or glues the tract together. sphragis sperm plug vaginal plug copulation plug SPD:0000547 seminal clot