THE BATRACHIA OF NORTH AMERICA. 



43 



CRYPTOBRANCHUS FUSCUS Holbrook. 

 Menopoma fiiscum Holbrook, N. Am. Herpetology, 1842, v, p. 99. 



Fig. G.—Gnj2)tobranchus fusous, Knosville, Tennessee ; natural sizr 



Besides the characters already assigned to this species, the single 

 specimen on which it rests differs fr.rii most of those of the C. aUeglie- 



