. Fourteen weeks in zoology. Zoology. AMigator mlssissljrpiensis. Alligator, In the colder portions of its habitat it hibernates in the mud, but within the tropics is active at all seasons. ORDER LACERTILIA. General Characteristics.—The teeth are simply at- tached to the surface of the jaw. In the Leptoglossa (slender-tongued) group, the tongue is long, nicked, and enclosed in a sheath, from which it can be protruded through a notch when the jaws are closed. In the Pachyglossa (thick-tongued), this organ is fleshy, and can be thrust out only when the mouth is open. Chamaeleonidse.—The Chameleo
. Fourteen weeks in zoology. Zoology. AMigator mlssissljrpiensis. Alligator, In the colder portions of its habitat it hibernates in the mud, but within the tropics is active at all seasons. ORDER LACERTILIA. General Characteristics.—The teeth are simply at- tached to the surface of the jaw. In the Leptoglossa (slender-tongued) group, the tongue is long, nicked, and enclosed in a sheath, from which it can be protruded through a notch when the jaws are closed. In the Pachyglossa (thick-tongued), this organ is fleshy, and can be thrust out only when the mouth is open. Chamaeleonidse.—The Chameleon is confined to the Old World.* It leads a double life. It may be asleep on one side and awake on the other. One eye can watch an insect crawling in the rear, and the other in front. When agitated, . ^ , each half of its body wishing ChamaeVim mlgUns, Chameleon. •' o Fig. * Many of the Btories current ahont the chameleon's change of color are donht- less fabulous; yet it can become at pleasure yellow, green, or black. " In the skin," says Bert, " there Is a network of minute ducts, connecting with pigment-vesicles on the under surface, which contain the coloring liquid. The tint of the animal depends on the amount of this liquid injected into the ; The process seems, somewhat analogous to that of blushing in the human 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 Steele, Joel Dorman, 1836-1886. New York, Chicago [etc. ] A. S. Barnes & Company
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1872
