xiv INTRODUCTION 



Dakin, of Liverpool University; Mr. Chadwick, of 

 Port Erin ; the Misses Crisp, of Playford Hall, Suffolk ; 

 Mr. Crisp; Mr. Cook; and Mr. Hudson, of Ipswich; 

 and numerous other friends who, from time to time, 

 have supplied me with specimens of living fish; and, 

 lastly, the Rev. H. A. Watts, for kindly revising the 

 manuscript. 



