CLASSIFICATION OF VERTEBRATA 



not yet been written, and this little work is meant to be used 

 by the present generation. 



In the arrangement of the recent Amphibia and Eeptiles I 

 have followed Mr. G. A. Boulenger, who has given me also 

 many hints concerning the extinct forms. To Professor W. F. 

 R Weldon I am indebted for numerous criticisms of the whole 

 plan of this work. It must, however, be distinctly understood 

 that neither of my friends can in any way be held responsible 

 for any mistakes or errors of judgment which may be found in 

 this Classification of Vertebrata. 



H. GADOW. 



CAMBRIDGE. 

 28th June 1898. 



