CLASS III. ORDERS It & Ill. V7 
ORDER 2. SAURIA. 
Having a covering of scales, and walking on 
two or four feet. Heart with two auricles. 7 
Lacerta, (lizard, crocodile, chamelion,) body 
fouc-footed, elengated, tailed ; without any secon- 
dary integument. 
Draco, (dragon,) body four-footed, tailed, and 
furnished on each side with an expansile, radiate, 
wing-like skin. 
ORDER 3. OPHIDIA. 
Having no feet. Heart with two auricles. 
Aneuis, (slow-worm,) scales both on the abdo- 
men, and beneath the tail, 
AMPHISBAENA, (itch-worm,) body cylindric, 
equal; annular divisions both on body and tail. 
_ Boa, (giant snake,) scuta, or undivided plates, 
both on the abdomen, and beneath the tail. , 
Co.user, (viper»asp, ring-snake, green-snake, 
spotted-snake, striped-snake,) scuta, or undivided 
lamellae under the abdomen ; broad alternate 
scales, or divided lamina, under the tail. 
_ Acrocnorpus, (warted-snake,) body and tail 
completely covered with warts. 
Hynprus, (water-snake,) body slender in front, 
gradually thickening, scaled ; tail compressed. 
Crouraus, (rattle-snake,) scuta on the abdo- 
men; scuta and squamez beneath the tail ; rattle 
terminating the tail. 
Laneaya, (moccasin-snake,) abdominal plates ; 
caudal rings ; terminal scales. 
Carciiia, (eel-snake,) body cylindric, equal ; 
wrinkles on the sides both of the body and tail. 
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