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Ptychodactis patula. Ein Ausläufer des Schlundrohres
mit den oberen Theilen zweier an denselben befestigten, vollständigen
Septa.
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Peachia tropica. Section passing through the upper region
of the actinopharynx, showing the separate siphonoglyph and the sixteen
mesenteries. Drawn from a hand section. act.-actinopharynx; d.m.-ventral
directive mesenteries; si.-tubular siphonoglyph; s.m.-a pair of mesenteries
belonging to the second cycle.
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Limnactinia nuda. Longitudinal section of the evaginated
actinopharynx (a, b), the oral disc (c, d) and the upper part of the column
(e).
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Glyphostylum calyx. Cross section through siphonoglyph.
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Edwardsia andresi; transversal section of a portion of the
aesophagus. a. Epithelium; b. Connective-tissue; c. Musculous layer; d.
Pyramidal connective-tissue prominence on the inner wall of the connective-tissue;
e. Epithelium with cilia.
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