Sentence Examples with the word Epistome

The part which lies at the base of the epistome is morphologically dorsal in position.

C, Optical section of the epistome (seen immediately below the end of the reference-line).

A general nerve-plexus probably exists over considerable parts of the skin, and there are special nervous concentrations in the region of the epistome and along a double crescent (N) which follows the parietal attachment of the coelomic septum.

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The epistome of the adult Phoronis cannot well be the proboscis since its cavity is continuous with the lophophoral coelom, and because the praeoral hood of Actinotrocha is entirely lost at the metamorphosis.