48 



F. E. Beddard, M.A., D. Sc, F.R.S., F.Z.S. 



Contributions to the Anatomy and Systematic Arrangement 

 of the Oestoidea. — VIII. On some Species of Ichthyotcenia and 

 Ophidotcenia from Ophidia. 



H. L. Hawkins, M.Sc, F.G.S. 



The Anterior Ambulacrum of Echinocardium cordatum Penn., 

 and the Origin of Compound Plates in Echinoids. 



H. B. Preston, F.Z.S. 



Diagnoses of new Species and Varieties of Agnathous 

 Mollusea. 



R^Lydekker, F.R.S., F.Z.S. 



The Dwarf Buffalo of Southern ISTigeria : with a Revision of 

 the Dwai-f Buffaloes of Western Africa. 



Communications intended for the Scientific Meetings should 

 be addressed to 



P. CHALMERS MITCHELL, 



Secretary, 

 Zoological Society of London, 

 Regent's Park, London, N.W. 

 Novemher I9th, 1912. 



