72 



STORY OF THE REPTILES 



chameleon should be separated from the lizards. We 

 have seen that outward form is not a safe guide, 



since a lizard and 

 a salamander may 

 have the same gen- 

 eral shape with- 

 out being nearly 

 related. 



For our pur- 

 poses we shall 

 "'" speak of the rep- 



Fig. 34.-A serpent. ^-j^^ ^^^^^^ ^^^^ 



following orders, and we shall learn their peculiari- 

 ties later : tortoises, serpents, lizards, crocodiles, and 

 tuateras. The last three have legs and a tail like 

 those of lizards. 



i'lti. '6b. — A lizard. 



