EDITOKIAL NOTES. 



This Volume contains Parts LIV., LV., LVI., and LVIII. of the Zoological 

 Series of Reports on the Scientific Results of the Expedition. 



Part LIV. — On the return of the Expedition the specimens of Nemertea, 

 along with the Annelida, were placed in the hands of Professor W. C. M'Intosh, 

 F.R.S., for description. In the year 1884, however, Professor M'Intosh's 

 time being fully occupied with the Annelida, Professor A. A. W. Hubrecht, 

 of the University of Utrecht, was requested to undertake the investigation and 

 description of the Nemertea, and the results of his labours are presented in 

 this interesting and valuable Report. 



Parts LV. and LVI. are respectively Reports on the Cumacea and 

 Phyllocarida, by Professor G. 0. Sars, of the University of Christiania, who 

 has already contributed a most excellent Memoir on the Schizopoda collected 

 by the Expedition, which forms Part XXIX. of the Zoological Series of 

 Reports. 



Part LVIII. — This Memoir, which is the first instalment of the Report on 

 the Pteropoda, by Dr. Paul Pelseneer of Brussels, treats of the Gymnosomata, 

 and embraces a critical examination of all the genera and species of this 

 little known order of pelagic aimals. The Report will be completed by 

 subsequent Parts dealing with the Thecosomata and with the Anatomy of 

 the whole class. 



John Murray. 



Challenger Office, 32 Queen Street, 

 Edinburgh, 9th February 1887. 



