XX THE VOYAGE OF H.M.S. CHALLENGES. 



Eepokt on the Anomuka. 



By Jules Barrois, Director of the Zoological Laboratory at Villefranche. 



Eepokt on the Pteropoda and Heteropoda. 

 By A. E. Craven, F.L.S., F.G.S. 



Concluding Part with Index. 

 By John Murray, F.R.S.E. 



The Isopoda, and one or two other Groups still remain to be allotted. 



