Cyphopod

Cyphopods, also known as vulvae, are paired sacs in female millipedes that located on the underside of the third body segment that store sperm and connect to the oviduct.¹ Cyphopods are sclerotized, and usually hidden behind a small opening. Despite the connotation of the suffix -pod (generally referring to legs or feet), cyphopods are not derived from walking legs.²

Cyphopd pair (left) and closeup of a single (right) in *Eviulisoma* source ↗

References

Mesibov, Robert. "External Anatomy of Polydesmida: Cyphopods". polydesmida.info. Archived from the original on 2015-09-24. Retrieved 2015-08-27.
Hoffman, Richard (2011). "The curious genitalic structures of Tancitares michoacanus (Polydesmida, Rhachodesmidae)" (PDF). International Journal of Myriapodology. 5: 27–33. doi:10.3897/ijm.5.1899.

[1] Mesibov, Robert. "External Anatomy of Polydesmida: Cyphopods". polydesmida.info. Archived from the original on 2015-09-24. Retrieved 2015-08-27.

[2] Hoffman, Richard (2011). "The curious genitalic structures of Tancitares michoacanus (Polydesmida, Rhachodesmidae)" (PDF). International Journal of Myriapodology. 5: 27–33. doi:10.3897/ijm.5.1899.

1

2