PREFACE. 



Besides the gentlemen already named as having aided in the preceding volumes, 

 I must now acknowledge my obligations to those who have assisted me in this, 

 the fifth and last volume of the external forms, colour, habits, &c. &c. of our 

 Reptiles. 



To Dr. G. Mauran of Providence, Rhode Island, I am indebted for many 

 Salamanders, and especially for a beautiful Salamandra longicauda. 



To Dr. Storer of Boston, for the description of the Salamandra salmonea, a 

 new species, discovered by Dr. Binney among the Green Mountains. 



To S. S. Haldeman, Esq., of Pennsylvania, well known by his writings on 

 Conchology, I owe many thanks for "observations" on the habits of the different 

 kinds of Reptiles, as Tortoises, Lizards, Serpents, &c, and especially for several 

 Salamanders, some of which are hitherto undescribed. 



To Professor Benedict of Burlington, for some excellent remarks on the 

 Menobranchus maculatus. 



