igo8.] Records of the Indian Museum. 307 



whole of the passage was then changed, apparently without refer- 

 ence to the literature cited, which is therefore misquoted, and 

 the error was thus perpetuated. The presence of vesicular cells 

 (Blasenzellen) in the parenchyma is recognized as being character- 

 istic of E. mulleri, distinguishing it from E. fluviatilis. Unless, 

 therefore, the three forms are either to be considered distinct or 

 united as races or phases of a single species, the Indian form, 

 E. meyeni must be regarded as a sub-species or variety of E. mulleri ; 

 Dr. Weltner's view, to which reference is made in my note, must 

 therefore stand. I can only offer my sincerest apologies to Dr. 

 Weltner, and to anyone who may have been misled. It was only 

 recently that I had occasion to refer to my note and realised the 

 mistake. 



N. Annandai,e. 



