Has 



c.\ 





CONTENTS OF THE FOURTH VOLUME, 



EXHIBITING THE FINAL CORRECTIONS AND ADDITIONS. 



Species of questionable indigenousness are printed in italics ; spurious and 

 unrecognized species in nonpareil. The addition of (a. i.) to a species refers the 

 reader to the first Appendix, or Supplementary Notes on the Acephala, in the 

 Second Volume, (a. ii.) to the Appendix at the end of the work. 



