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Stichosome:
The pharynx is narrow and thin-walled anteriorly; posteriorly, is
surrounded by unicellular, glandular stichocytes, each with a duct into the
pharyngeal lumen. The pharynx is almost devoid of musculature. The region of the pharynx surrounded
by stichocytes is known as the stichosome.
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Female:
Male:
Ref: Marchiondo et al., 2020
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