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A bundle or packet of sperm produced by certain animals, such as annelids, arthropods, and some vertebrates.



in some animals, a capsule containing male sexual cells, or spermatozoa. Spermatophores serve to transport spermatozoa. They are characteristic of leeches, Pogo-nofora, cephalopods, some gastropods and amphibians, and many crustaceans, arachnids, myriopods, and insects.

A spermatophore’s structure and the way the spermatophore enters a female’s genital system vary. For example, in crustaceans, arachnids, and insects different extremities participate in the transport of spermatophores. In cephalopods the hectocoty-lus, one of the arms, usually transports spermatophores. The male grasps spermatophores with the hectocotylus and transfers them into the female’s mantle cavity. In some Octopoda a hectocotylus filled with spermatophores breaks away from the body of the male and floats to the female, inserting itself into the mantle cavity. Male tritons and salamanders attach spermatophores to objects; the spermatophores are then drawn in by the female’s cloaca.

References in periodicals archive ?
There, he witnessed a miraculous mass spawning in which millions of egg and sperm packets were released almost simultaneously by different coral species in the area.
The squids for which mating has been observed use a hectocotylus, a modified arm, for the transfer of sperm packets called spermatophores.
Males deposit spermatophores, or sperm packets, for females, who choose the ones that will be used to fertilize their eggs.
Hoving found that males of the bioluminescent species Taningia danae use their beaks and sharp claws to slice two-inch-deep wounds into their partners, and sperm packets or spermatophores, are then inserted into the female using a penis-like appendage.