vi PREFACE. 



To the Right Reverend J, H. Hopkins, Bishop of Vermont, I am obliged for a 

 drawing of the Menobranchus maculatus, one of the most spirited and beautiful 

 in the whole work. 



To Dr. Harden of Riceborough, Georgia, I am indebted more than to any 

 other person for a knowledge of our southern batrachian animals, as Hyte, 

 Sirens, Salamanders, Tritons, &c. 



Dr. DeKay, State Zoologist of New York, one of the most accurate naturalists 

 of our country, has rendered me great service by his observations on northern 

 Salamanders, and has furnished me with many drawings, and with the description 

 of a new species (Salamandra gi*anulata). 



To Mr. J. H. Richard, who succeeded Mr. Sera as draughtsman, and who 

 has the general superintendence of the plates, I am greatly indebted for many 

 beautiful drawings done from life. 



JOHN EDWARDS HOLBROOK. 

 Medical College, Charleston, South Carolina, 1S42. 



