Cassiopœa.
[The remaining experiments were all performed in 1897, at Port Antonio.]
49. Removal of the sixteen marginal bodies caused paralysis for a time; then recovery followed.
Contraction was limited to the subumbrella.
A portion of the subumbrella not from the margin can contract by itself as well as a portion of the margin with the marginal bodies (lithocysts).
In the margin cut off as a strip with only one marginal body attached at one end, contractions sometimes started from the opposite end.