Page 



1 9. The Dwarf Buflalo of Southern Nigeria ; with a 



Revision of the Dwarf Buffaloes of Western Africa. 

 By R. Lydekker, F.R.S., F.Z.S. (Text-figs. 42-44.) . 234 



20. Contributions to the Anatomy and Systematic Arrange- 



ment of the Cestoidea. — IX. On a new Genus of 

 Ichthyotseniids. By Frank E. Beddard, M.A., D.Sc, 

 F.R.S., F.Z.S., Prosector to the Society. (Text-figs. 45- 

 53.) 243 



21. Zoological Results of the Third Tanganyika Expedition, 



conducted by Dr. W. A. Cunnington, 1904-1905. — 

 Report on the Branchiura. By William A. 

 Cunnington, M.A., Ph.D., F.Z.S. (Pis. XLI.-XLY.) 262 



22. Notes on Plankton collected across the mouth of the 



St. Croix River opposite to the Biological Station at 

 St. Andrews, New Brunswick, in July and August 

 1912. By Arthur Willey, M.A., D.Sc, F.R.S., 

 F.Z.S., McGill University, Montreal. (Text-fig^. 54 & 

 55.) 283 



23. Variations in the Skeleton of the Pectoral Fins of 



Polyptetms. By Edith E. Bamford, Newnham College, 

 Cambridge. (Text-figs. 56-60.) 292 



24. A Descriptive Study of an Oligochsete Worm of the Family 



Enchytrseidee ; with an Appendix on certain Commensal 

 Protozoa. By H. H. Stirrup, B.Sc. (Birm.), Lecturer 

 in Agricultural Biology, East Anglian Institute of 

 Agriculture, Chelmsford. (Pis. XLYI.-XLIX. and 

 Text-figs. 61-67.) 300 



25. The Relationship of the Big Game of Africa to the 



Spread of Sleeping Sickness. By Dr. W. Yorke, 

 Liverpool School of Tropical Medicine. With an 

 Appendix containing Remarks bv Sir John Bland- 

 Sutton, F.R.C.S., F.Z.S. ; Guy A.K. Marshall, F.Z.S. ; 

 Prof. E. A. Minchin, M.A., F.R.S., Y.P.Z.S. ; The 

 Hon. L. Walter Rothschild, D.Sc, F.R.S., F.Z.S. ; 

 Sir Henry Seton-Karr, K.C.M.G., F.Z.S. ; and Sir 

 Alfred Sharpe, K.C.M.G., LL.D. ; and Reply by 

 Dr. Yorke 321 



