Didelphic, amphidelphic ovaries are found in

Solution(By Examveda Team)

Didelphic, amphidelphic ovaries are found in Tylenchorhynchus, Helicotylenchus, and Hoplolaimus.
When there is one ovary that condition is known as monodelphic and when the number is two, the condition is called didelphic. In monodelphic conditions, the ovary is always, anteriorly directed, i.e Prodelphic.
Tylenchorhynchus is a genus of nematodes including many species of plant parasites. The classification of stunt nematodes - those including the genus Tylenchorhynchus - is unstable; many newly discovered species within this genus are reconsidered to be subspecies.
Helicotylenchus is a genus of nematodes in the family Hoplolaimidae. They are known generally as spiral nematodes.
Hoplolaimus is a genus of nematodes known commonly as lance nematodes. They are parasites of plants, and three species are pests of crops.