SALAMANDERS AND NEWTS. 



73 



{Necturus maculahis, 462), in wliich the eyes are functional and each 

 limb is four-toed. Tlie thick stalks of the three pairs of external 



Fig. 72. 



Fig. 73. 



Fig. 72. The 01m {Proteus anguinus), from the caves of CJaruiola. (No. 564.) 

 Fig. 73. _ The Mud-eel {Siren lacertina) , from North America. (No. 565-) 



gills are brown, but the terminal fringes during life are blood-red. 

 A specimen is exhibited. 



