. The biology of marine animals. Marine animals; Physiology, Comparative. 478 THE BIOLOGY OF MARINE ANIMALS The intestine and digestive glands of some molluscs and Crustacea, and the digestive caeca of asteroids and other echinoderms, contain greenish pigments known generally as hepatochlorophyll and probably consisting of a mixture of chlorophylls and chlorophyll derivatives. Vegetal chloro- phyll undergoes a certain amount of degradation in its passage through the animal. The viscera of a tectibranch mollusc Akera yield phaeophorbide, which is formed from chlorophyll contained in the algal f
. The biology of marine animals. Marine animals; Physiology, Comparative. 478 THE BIOLOGY OF MARINE ANIMALS The intestine and digestive glands of some molluscs and Crustacea, and the digestive caeca of asteroids and other echinoderms, contain greenish pigments known generally as hepatochlorophyll and probably consisting of a mixture of chlorophylls and chlorophyll derivatives. Vegetal chloro- phyll undergoes a certain amount of degradation in its passage through the animal. The viscera of a tectibranch mollusc Akera yield phaeophorbide, which is formed from chlorophyll contained in the algal food. Proto- porphyrin, occurring in the integument of Asterias rubens, may be derived from chlorophyll pigments present in the hepatic caeca (43, 45). Some examples of colours due to haem-containing respiratory pigments have been mentioned previously. Concentrations of myohaemoglobin Green algal (flagellate) cells. 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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