. On the anatomy of vertebrates [electronic resource] . Portion of the jaw of Lophhts piscatorius, sheinentous attachment of the teeth. 261. (Crenilabrus). V. with the base of the tooth :for some time a thin layerof ligamentous substanceintervenes, but anchylosisusually takes place to agreater or less extent beforethe tooth is shed. Most ofthe teeth of the Lophius re-tain the primitive connection; the ligaments, fig. 260, d, of the largeinternal or posterior teeth of the upper and lower jaws, radiate onthe corresponding sides of the bone, the base of the tooth restingon a conformable alveolar
. On the anatomy of vertebrates [electronic resource] . Portion of the jaw of Lophhts piscatorius, sheinentous attachment of the teeth. 261. (Crenilabrus). V. with the base of the tooth :for some time a thin layerof ligamentous substanceintervenes, but anchylosisusually takes place to agreater or less extent beforethe tooth is shed. Most ofthe teeth of the Lophius re-tain the primitive connection; the ligaments, fig. 260, d, of the largeinternal or posterior teeth of the upper and lower jaws, radiate onthe corresponding sides of the bone, the base of the tooth restingon a conformable alveolar process. The ligaments do not permitthe tooth to be bent outward beyond the vertical position, butyield to pressure in the contrary direction, by which the point ofthe tooth may be directed towards the back of the mouth, as at c;the instant, however, that the pressure is remitted, the toothreturns through the elasticity of the bent ligaments, as by theaction of a spring, into its usual erect position, b; the deglutitionof the prey of this voracious fish is thus facilitated, and its escape TEETH OF FISHES. 375 prevented. The broad and
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Keywords: ., bookcentury1800, booksubject, booksubjectbirds, booksubjectfishes
