| 21. | The pharynx is long and slender, spanning 4 segments.
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| 22. | The pharynx spans approximately 3 segments and is relatively slender.
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| 23. | Small slugs may be entirely sucked by the pharynx into the intestine.
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| 24. | During swallowing, it serves as part of the anterior of the pharynx.
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| 25. | The large buccal siphon opens into the pharynx, acting like a mouth.
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| 26. | The foregut comprises the sucking pharynx and the oesophagus.
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| 27. | Also, the shape and contraction of the pharynx would likely be important.
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| 28. | In the pharynx, the pharyngeal glands secrete mucus.
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| 29. | The medial aspect is made up of the pharynx.
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| 30. | It has a well-developed anterior pharynx and a long intestinal tract.
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