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 oi Echinocardium cordatum Penn., 

 and the Oi-igin of Compound Plates in Echinoids. 



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



Diagnoses of new Species and Varieties of Agnathous 

 Mollusca. 



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



The Dwarf Buffalo of Sovithern Nigerian with a Revision of 

 the Dwarf Buffaloes of Western Africa. 



Communications intended for the Scientific Meetings should 

 be addressed to 



P. CHALMERS MITCHELL, 



Secretm^y. 

 Zoological Society of London, 

 Regent's Park, London, N.W. 

 November I2th, 1912. 



