THE Editor of the Challenger Reports will be greatly obliged to 

 Authors sending him copies of separate papers, or references to 

 works in which the Challenger discoveries are referred to, or the 

 observations of the Expedition are discussed. 



This will greatly facilitate the compilation of a complete 

 Bibliography, and the discussion of the results of the Expedition, 

 in the final Volume of the Series. 



Letters and Papers should be addressed — 

 JOHN MURRA Y, 



Challenger Office, 



j 2 Queen Street, 



EDINBURGH. 



(The Manuscript ivas received in Instalments between \lth October and 



15th December 1886.) 



III. — Report on the Phyllocarida collected by H.M.S. Challenger during the years 



1873-1876. 



By Professor G. 0. Sars, of the University of Christiania. 



(The Manuscript ivas received 15th January 1887.) 



IV. — Report on the Pteropoda collected by H.M.S. Challenger during the years 



1873-1876.— First Part. 



By Paul Pelseneer, D.Sc. (Brussels). 



( The Manuscript ivas received 15th November 1886.) 



