Preface. XI 



The „ Index generuni et specierum" which comes after this, 

 contains all the genera and species and their synonyms men- 

 tioned by Bleeker in his papers. 



One remark on account of this list will be necessary. Blee- 

 ker's papers are far from being without misprints, which are 

 principally due to the primitive state of the printing-offices 

 at Batavia in his time. We have for the greater part corrected 

 these slips, presuming that anyone who wants to know where 

 a certain species is mentioned, will look for it under its cor- 

 rect name. Other slips however had to be taken up without 

 alteration to prevent worse misunderstandings. For instance 

 an ichthyologist consulting „Contribution a la faune ichthyo- 

 logique de I'ile Maurice" will find on page 8 the name „Tri- 

 stius brasiliensis 6"/'//." Only by entering this name in our 

 Index was it possible to draw attention to the fact that this 

 name is a misprint for „Isistius brasiliensis GUI'". 



We left Bleeker's often peculiar orthography unaltered, as 

 our intention is only to give quotations and no criticism. 



Finally we are glad of this opportunity to express a warm 

 word of thanks to the publishing and printing firm E. J. Brill 

 Ltd. of Leyden, whose accuracy in this difficult typographical 

 task greatly facilitated our work. But what helped us through 

 this work was the conviction of its usefulness in rendering 

 the access to Bleeker's ichthyological work more easy. 



Max Weber. 



L. F. DE Beaufort. 



Eerbeek, Holland, September 191 1. 



