Mushroom or Utricular gland :
It is found in 7th abdominal segment & opens into an ejaculatory duct. It consists of three types of structures-
- Seminal Vesicles : They are small & round structures which store the sperms.
- Short central tubules or Utricular minores : They are small tubules which secrete nutrients for the sperms.
- Long peripheral tubules of Utriculi majors : They are long & thin tubules. Which secrete inner layer of the spermatophore.