Order— LABYKINTHODONTIA. 



Genus — Labtbinthodon. 



PLATE 4. 



Batrachia. 



The fossils characteristic of Labyrinthodon leptognathus , Lab. pachygnathus, 

 and Lab. Jaegeri, selected as subjects of this Plate, are described in pp. 190—193 

 Vol. in. 



