| But in the case of the strobila we say that it is not changed, but dies, and is no part of the personality of the medusa. |
| The strobila may look like a stack of saucers, the saucers being the immature medusae called ephyrae. |
| The strobila is made up of anywhere from a few to more than one thousand proglottids but usually contains several dozen. |
| There are some species which, having no hydroid or strobila state, mature without alternation of generation. |
| The youngest portion of the strobila is just behind the neck, while the oldest portion is at the posterior end of the body. |
| The segmentation of the strobila is very indistinct, but the reproductive organs occur at regular intervals. |
