CONTENTS. 



Part I. RmriDOGLOSSA and DocoGLOSSA (pviblished July igoS) I 



Appendix by Prof. R. Bergh 99 



Part II. Taenioglossa and Ptenoglossa (piiblished September 1909) 109 



Part III. Gymnoglossa (published December 1909) 233 



Part IV. RACHIGL05SA (published September 1911) 247 



Part V. TOXOGLOSSA (published April 191 3) 3^5 



Supplement ^ 45' 



Part VI. PULMOXATA and Opisthobranchia Tectibranchiata (Tribe Bullomorpha) (published May 1913) 453 



Index of Genera and Species 477 



