CONTENTS. 



Page. 



Occurrence of disease 193 



Methods of study 194 



Experiments to determine character of infection 195 



Pathological condition of the tissues 197 



Bacteria associated with atrophied tissues 199 



Sporozoa associated with atrophied tissues 201 



Stages of M>-xobolus musculi , 202 



Chloromj-xum f unduli 205 



Protozoa related to those here described 206 



Prevalence of myxosporidian infection in fish 208 



General conclusions 209 



Bibliography .' 210 



Explanation of plates 212 



192 



