CHAPTER VI 
REPTILES 1 
83. Reptiles. — Among the Reptiles (rep'tilz) are in¬ 
cluded lizards, snakes, alligators, turtles, and crocodiles. 
The Reptilia (Latin, repo, to crawl) are characterized by a 
Figure 83. — Rattlesnake — Poisonous. 
Notice the triangular shape of the head and the small pit on each side 
of the nose. Compare with Figure 88. 
covering of bony plates, or scales, in the skin, by the absence 
of gills in the adult stages, and by the presence of lungs. 
84. Life History. — Unlike the amphibians, the reptiles 
hatch directly into their adult form, only much smaller. 
1 If desired, this chapter may be omitted without affecting the sequence in 
the book. 
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