- a stage in the life cycle of a jellyfish or other scyphozoan when it is fixed in place and reproduces asexually to produce free-swimming medusas.
Examples from the Web for scyphistoma
Historical Examples of scyphistoma
Strobila, stro-bī′la, n. a discomedusan at the stage succeeding the scyphistoma: a segmented tapeworm.
The original terminal ring of tentacles of the Scyphistoma gradually atrophies.
With the above changes the so-called Hydra tuba or Scyphistoma form is reached (vide fig. 85).
- a sessile hydra-like individual representing the polyp stage of scyphozoans. It produces forms which become free-swimming jellyfish