How to use Rhopalium in a sentence

rhopalium
  • At the apex of the rhopalium the endoderm is greatly thickened and consists of concrementcells secreting otoliths (Con).

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  • The more proximal portion of the rhopalium usually bears one or more ocelli (oc).

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  • The rhopalia are lodged in the notches be tween the marginal lobes of the umbrella, and each rhopalium is covered over by a little protecting flap or lappet.

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  • Each rhopalium is a centre round which, as already stated, nervous tissue is concentrated.

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  • In Aurelia there are two on each rhopalium, a simple ocellus on the exumbral side, and a cupped ocellus on the subumbral side (not present in young individuals).

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  • The distal club corresponds to the crystal-sac of an ordinary After Wladimir Schewiakoff, simplified from rhopalium, but bears a battery a coloured plate in Morphologisches Jahrbuch, of nematocysts in place of the xv., 1889, by permission of Wilhelm Engelotoliths.

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