. The biology of marine animals. Marine animals; Physiology, Comparative. NUTRITION AND FEEDING MECHANISMS 211 confluent, and are directed to the exterior as a single dorsal exhalant current. In another brachiopod, Neothyris, the mechanism is somewhat different. Two lateral arms of the lophophore lead into a spiral confluent chamber, enclosed by tentacles. On either side of the gape the tentacles are spread apart so as to form inhalant openings (Fig. ). Through the latter a stream enters the inhalant chamber formed by the opposed tentacles of the lophophore, and escapes into the exhalant ch
. The biology of marine animals. Marine animals; Physiology, Comparative. NUTRITION AND FEEDING MECHANISMS 211 confluent, and are directed to the exterior as a single dorsal exhalant current. In another brachiopod, Neothyris, the mechanism is somewhat different. Two lateral arms of the lophophore lead into a spiral confluent chamber, enclosed by tentacles. On either side of the gape the tentacles are spread apart so as to form inhalant openings (Fig. ). Through the latter a stream enters the inhalant chamber formed by the opposed tentacles of the lophophore, and escapes into the exhalant chamber by passing between the filaments of the spiral arm. Water currents are created by beating of cilia lining the exhalant chamber and spiral arm. Heavy part- icles in the food stream are forced past the filaments into the exhalant Rejection current Rejection current. Diaphragm rrying fibular ted roove. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nicol, J. A. Colin (Joseph Arthur Colin), 1915-. New York, Interscience Publishers
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