. Animal and vegetable physiology, considered with reference to natural theology, by Peter Mark Roget ... Biology; Physiology; Plant physiology; Natural theology. GASTRIC TEETH. 1(57 on the two lateral edges of the upper jaw, which is prolonged in the form of a snout (seen in a, Fig. 293), constituting a most formidable weapon of oftence. b is a more enlarged view of a portion of this instrument, seen from the under side. *§ 5. Tritnraliou of Food In Tntenial Cavities. The mechanical apparatus, provided for tritu- rating the harder kinds of food, does not belong exclusively to the mouth, or en
. Animal and vegetable physiology, considered with reference to natural theology, by Peter Mark Roget ... Biology; Physiology; Plant physiology; Natural theology. GASTRIC TEETH. 1(57 on the two lateral edges of the upper jaw, which is prolonged in the form of a snout (seen in a, Fig. 293), constituting a most formidable weapon of oftence. b is a more enlarged view of a portion of this instrument, seen from the under side. *§ 5. Tritnraliou of Food In Tntenial Cavities. The mechanical apparatus, provided for tritu- rating the harder kinds of food, does not belong exclusively to the mouth, or entrance into the alimentary canal, for in many animals we find this office performed by interior organs. Among the inferior classes, we find examples of this conformation in the Crustacea, the Mollusca, and above all in Insects. Thus there is found in the stomach of the Lobster, a cartilaginous frame-work, in which are implanted hard cal- careous bodies, having the form, and performing the functions of teeth. They are delineated in Fig. 294, which presents a view of the interior of the sto- mach of that animal. The tooth A is situated in the middle of this frame, has a rounded conical shape, and is smaller than the others (b, c). 294. 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 Roget, Peter Mark, 1779-1869. London : W. Pickering
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