via EDITORIAL NOTES. 



Part LXXVI.— The First Part of the Report on the Tunicata collected 

 by the Expedition, dealing with the Ascidi.e Simplices, was pub- 

 lished in Volume VI. Zoology (1882), and forms Part XVTI. of the 

 Zoological Series of Reports. 



The Second Part of the Report, dealing with the AsciDiiE 

 CoMPOSiTvE, was published in Volume XIV. Zoology (1886), and 

 forms Part XXXVIII. of the Zoological Series. 



This is the third and concluding Part of Professor W. A. 

 Herdman's most excellent and extensive Report on the Tunicata, 

 and its value is enhanced by the fact that it concludes with a 

 statement of the theoretical conclusions at which he has arrived in 

 regard to the relationships of the Tunicata, after ten years of con- 

 tinuous study. 



This third section consists of 163 pages and 11 plates. 



John Murray. 



Challenger Office, 32 Qxjbbn' Street, 

 Edinburgh, Isf Sepfemher, 1888. 



