. The animal creation: a popular introduction to zoology. Zoology. 382 SERPENTS. are attached to moveable. bones (Fig. 312). When not in use, they are laid flat upon the roof of the month, where they are co- vered by a fold of the gums; but when the animal is irri- tated or about to strike its prey, they are plucked up Fig 312.—poisox-faxgs. from their concealment and stand out like two lancets. Each fang is traversed by a canal, not, as it is generally described, excavated in the substance of the tooth, but formed by bending, as it were, the tooth upon itself, so as to enclose a narrow channe
. The animal creation: a popular introduction to zoology. Zoology. 382 SERPENTS. are attached to moveable. bones (Fig. 312). When not in use, they are laid flat upon the roof of the month, where they are co- vered by a fold of the gums; but when the animal is irri- tated or about to strike its prey, they are plucked up Fig 312.—poisox-faxgs. from their concealment and stand out like two lancets. Each fang is traversed by a canal, not, as it is generally described, excavated in the substance of the tooth, but formed by bending, as it were, the tooth upon itself, so as to enclose a narrow channel through which the poison flows. The glands in which the poison is elaborated (Fig. 313) occupy a considerable space on each side of the head. The substance of these organs. 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 Jones, Thomas Rymer, 1810-1880. London : Society for Promoting Knowledge
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Keywords: ., bookauthorjo, bookcentury1800, bookdecade1860, booksubjectzoology
