• r i4 U S. National Museum,— Cope. Battachia of North America. 



Plate XI. 



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j-r-X^lUs, ^*,^,.. 



Cht/wnerp( ton iiuUitinctum R. «ud L. 



-Wj 



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«,i,,:.i!i>,L::iiiii:^^ 



^t 



.■lwfj//i«'«(t mcann OarJ. 



Chthonehpeton and Amphiuma. 



