Fie 434. Salamander, showing the double row of lateral sense-organs 

 )\ ; the dots on the head being organs of the same kind, o, gms. 



Fig. 435a. Head and tail-end of blind-snake 

 (Ccecilia). 



Fig. 4356. Young of Coecilia, with 

 the gills, and head of the same after 

 the gills have been absorbed. 



Fig. 435c. Skeleton of the hellbender (Menopomtn. 



Fig. 435d. Archegosaurus. A Labyrinthodout. (About four feet long; restored.) 



[To face page 482.] 



