. Animal biology. Zoology; Biology. 200 METAZOAN PHYLA When the food is digested it is absorbed through the walls of the alimentary canal into the coelom and is thus distributed to all parts of the body. Elimination probably takes place in part through the rectal caeca but also in another and very curious manner. Ameboid cells, known as amehocytes, lying in the coelomic fluid, pick up particles of waste and make their way out through the walls of the dermohranchiae— literally, skin gills—thus getting outside the body with the waste, and not returning. The dermobranchiae (Fig. 110 A) are formed


. Animal biology. Zoology; Biology. 200 METAZOAN PHYLA When the food is digested it is absorbed through the walls of the alimentary canal into the coelom and is thus distributed to all parts of the body. Elimination probably takes place in part through the rectal caeca but also in another and very curious manner. Ameboid cells, known as amehocytes, lying in the coelomic fluid, pick up particles of waste and make their way out through the walls of the dermohranchiae— literally, skin gills—thus getting outside the body with the waste, and not returning. The dermobranchiae (Fig. 110 A) are formed by out- pocketings of the coelomic wall which thrust through the skeletal pores and protrude on the outside beneath the epidermis. They are filled with Ani-er/'or Preorcr/ c//i'cr^ec^ Moe/-^f7 c///afec^ Posto/'af/, hcrntpf. Stofncrch "Anus. 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 Wolcott, Robert Henry, 1868-1934; University of Nebraska (Lincoln campus). Dept. of Zoology. New York ; London : McGraw-Hill Book Company, Inc.


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Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology