CONTENTS. 



I. — Report on the Lamellibranchiata collected by H.M.S. Challenger, during the 



years 1873-1876. 



By Edgar A. Smith, F.Z.S., Assistant in the Zoological Department of the 



British Museum. 



{Received 22nd Januarij 1885 ; Appendices, 11th and 18th June 1885.) 



11. — Report on the Gephyrea collected by H.M.S. Challenger, during the years 



1873-1876. 



By Dr. Emil Selenka, Professor in the University oi Erlangen. 



{Received 12th March 1885.) 



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



1873-1876. 



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



{First Instalment of Manuscript received 27th November 1884 ; the last 7th July 1885.) 



