CONTENTS. 



I. — Eeport on the Marseniad^e collected by H.M.S. Challenger during the years 



1873-1876. 



By Dr Rudolph Bergh, Physician to the General Hospital of Copenhagen. 



(TJie Manuscript was received January 25th, 1886.) 



II. — Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger 



during the years 1873-1876. 



By the Rev. Robert Boog Watson, B.A., F.R.S.E., F.L.S., F.G.S., &c, 



Ehrenmitglied des naturwissenschaftlicheu Vereins, Liineburg ; 

 Minister of the Free Church of Scotland, Cardross. 



(The Manuscript was received in Instalments between 18th February 1884 and 



15th February 1886.) 



Ill, — Report on the Polyplacophora collected by H.M.S. Challenger during the years 



1873-1876. 



By Alfred C. Haddon, M.A., M.R.I.A., Professor of Zoology, Royal College 



of Science, Dublin. 



(The Manuscript was received 28th January 1886.) 



