. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. PISCES. 977 Seeing, therefore, that the teeth of Fishes are derivations from pulps formed by the mucous lining of the mouth, it can be a matter of small astonishment to find that they can be developed in any part of the oral cavity where the necessities of a given species may require their presence, without relation to the jaws, with which alone they are connected in the highest races of Vertebrata and in the human subject. Accordingly in the class under consideration teeth are found attached to any or all of t
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. PISCES. 977 Seeing, therefore, that the teeth of Fishes are derivations from pulps formed by the mucous lining of the mouth, it can be a matter of small astonishment to find that they can be developed in any part of the oral cavity where the necessities of a given species may require their presence, without relation to the jaws, with which alone they are connected in the highest races of Vertebrata and in the human subject. Accordingly in the class under consideration teeth are found attached to any or all of the following parts of the mouth and of the pha- rynx, viz. to the superior and inferior maxillae, to the intermaxillary bones, to the palate bones, to the vomer, to the tongue, to the branchial arches, and to the superior and inferior pharyn- geal bones. The ichthyologist is therefore com- pelled to designate the different parts of the dental system according to the bones or other structures whereon they are situated, and distin- guishes intermaxillary teeth, maxillary teeth, mandibular teeth, vomerian teeth, palatine teeth, pterygoid teeth, lingual teeth, branchial teeth, superior pharyngeal teeth, and inferior pha- ryngeal teeth, all of which may sometimes be coexistent, rendering the teeth of Fishes prodi- giously numerous. As relates to their form the dental organs offer a far greater number of varieties than those of other vertebrate animals. Sometimes they are so minute as only to be perceptible by the rough or scabrous surface which the parts of the mouth to which they are attached present. If of larger size, they pre- sent the appearance of a file or rasp (dents en rape), or they may have the shape of small cones or hooks thickly scattered over the pa- rietes of the mouth. Sometimes they are so fine and slender as to resemble the pile of velvet (dents en velours), or elongated, having the appearance of fine bristles. In Citharinu these bristle-shaped teeth are bifurcat
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