Fig. 18.23. Representative Ophidia. A, head of the fer-de- 

 lance, Bothrops atro.x, showine; fana;s. B, fox snake, Elaphe 

 imlpina, with ee;8;s. C, hatching; voune; of the Indian rock pvthon, 

 Pythnn rnohtrus. (All photos;raphs courtesy New York Zooloa;icai 

 Societv.) 



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