HABITS OF CRYPTOBRANCHUS ALLEGHENIENSIS. y/ 



Figs. 12-14. Larval and post-larval stages of Cryptobranchus allegheniensis, ^_ 

 linear reduction. From living specimens. 



Fig. 12. Larvse taken August 14, photographed August 17, 1906. Length 6.4 

 cm., 6.8 cm., and 7.0 cm. respectively. 



Fig. 13. Larvse taken August 14, photographed August 17, 1906. Lengths 12. o, 

 cm. and 12.3 cm. respectively. Reduced external gills are present on both sides. 



Fig. 14. Young Cryptobranchus 2.6.'] cm. long. 



