strobila

/stroh-bahy-luh/US // stroʊˈbaɪ lə //UK // (ˈstrəʊbɪlə) //

镫骨,镫镫

Definitions

n.名词 noun

1
plural stro·bi·lae [stroh-bahy-lee]. /stroʊˈbaɪ li/. Zoology.
- : the body of a tapeworm exclusive of the head and neck region.Compare scolex.
- : the chain of segments of the larva of a jellyfish in the class Scyphozoa, each segment of which gives rise to a free-swimming medusa.

There are some species which, having no hydroid or strobila state, mature without alternation of generation (metagenesis).
Strobila, stro-bī′la, n. a discomedusan at the stage succeeding the scyphistoma: a segmented tapeworm.
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 segmentation of the strobila is very indistinct, but the reproductive organs occur at regular intervals.