CONTENTS. 
I. — Repoet on the Nudibranchiata collected by H.M.S. Challenger, during the years 
1873-1876. 
By Dr. Rudolph Bergh, Physician to the General Hospital of Copenhagen. 
II. — Report on the Myzostomida collected during the Voyage of H.M.S. Challenger, 
during the years 1873-1876. 
By Dr. L. von Grapf, Professor of Zoology in the College of Forestry, 
Aschaffenburg, Bavaria. 
III. — Report on the Cirripedia collected by H.M.S. Challenger, during the years 
1873-1876. — Anatomical Part. 
By Dr. P. P. C. Hoek, Member of the Royal Academy of Science of the Netherlands. 
IV. — Report on the Human Skeletons collected during the Voyage of H.M.S. 
Challenger, in the years 1873-1876. — The Crania. 
By William Turner, M.B., LL.D., F.R.SS. L. & E., Professor of Anatomy in the 
University of Edinburgh, Foreign Member of the Anthropological Society of Paris. 
V. — Report on the Polyzoa collected by H.M.S. Challenger, during the years 
1873-1876. — The Cheilostomata. 
By George Busk, F.R.S., V.P.L.S., &c. 
