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between the toad or frog (Fig. 250) and the "horned toad," which is a lizard (Fig. 265).
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Fig. 265.—"Horned Toad" Lizard, of the Southwest (Phrynosoma cornita). × 2/3.
Study of a Turtle or Tortoise
Suggestions.—Because of the ease with which a tortoise or
turtle may be caught and their movements and habits studied, it is
suggested that one of these be studied as an example of reptiles.
Besides a live specimen, a skeleton of one species and the shells of
several species should be available.
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Fig. 266.—European Pond Turtle (Emys lutaria). (After Brehms.)
The body (of a turtle or tortoise) is divided distinctly into regions (Fig. 266). Is there a head? Neck? Trunk? Tail? The trunk is inclosed by the so-called shell, which
