. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. MULTICELLULAR ANIMALS 167 side of the thorax and are shielded by heavy chitinous plates. An- terior to this narrow shed in which the gills lie is a modified leg with a spoon-shaped extremity which by constant motion draws BAILER. GILLS IN POSITION GILLS PULLED DOWN Fig. 109.—The gills and gill chamber of a lobster. The shield that covers the gill chamber has been cut away. water through the gill chamber. In some of the members of the class Arachnida, the spiders, membranous folds in sacs, arr
. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. MULTICELLULAR ANIMALS 167 side of the thorax and are shielded by heavy chitinous plates. An- terior to this narrow shed in which the gills lie is a modified leg with a spoon-shaped extremity which by constant motion draws BAILER. GILLS IN POSITION GILLS PULLED DOWN Fig. 109.—The gills and gill chamber of a lobster. The shield that covers the gill chamber has been cut away. water through the gill chamber. In some of the members of the class Arachnida, the spiders, membranous folds in sacs, arranged like £-/? INTESTINE ovApy HEART. 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 Buchanan, James William, 1888-. New York, London, Harper & brothers
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Keywords: ., bookcentury1900, bookpubl, booksubjectbiology, booksubjectzoology
