CONTENTS. V 



PAGE 



Nephridia and Body-cavity of some Decajjod Crustacea. By Edgar 

 J. Allen, B.Sc, University College, London, (With Plates 

 XXXVI, XXXVII & XXXVIII) . . . .403 



Note on the Ccelora and Vascular System of Mollusca and Arthro- 

 poda. By E. Ray Lankester, M.A., F.R.S., Linacre Professor, 

 Oxford 427 



Contributions to a Knowledge of British Marine Turbellaria. By 

 F. W. Gamble, B.Sc, Berkeley Fellow of Owens College, Man- 

 chester. (With Plates XXXIX, XL & XLI) . . .433 



Peculiarities in the Segmentation of certain Polycheetes. By 

 Florence Buchanan, B.Sc, from the Zoological Laboratory of 

 University College, London. (With Plate XLII) . . 529 



REVIEW: 



The Nephridia of Leeches ...... 545 



