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Feeding and Digestion In most species of pycnogonids, feeding habits are dic- tated by the form of the proboscis, and food is limited to material that can be sucked into the gut. Intra-appendage movements dur- ing walking in the scorpion Hadrurus arizonensis. Mesoderm and body cavities form by enterocoely. Tubiluchus corallicola (Figure 12.27C) lives in coral sedi- ments and feeds on organic detritus. These capillaries provide a constant blood supply from the ventral vessel to the body wall and a high surface area for exchange of gases between the blood and the environment.
Pages: 244
Publisher: CSIRO PUBLISHING (July 18, 2012)
ISBN: B008N3HW8Y
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