an Ostracod, of which one specimen only was found in brackish 

 water in Sussex. The latter formed the type of a new genus, and 

 possibly also a new family. 



The next Meeting of the Society for Scientific Business will be 

 held on Tuesday, March 4th, 1913, at half-past Eight o'clock p.m., 

 when the following communications will be made : — 



Exhibitions and Ii^otioes. 



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



Contributions to the Anatomy and Systematic Arrangement 

 of the Cestoid ea.— IX. On a ]S'ew Genus of Ichthyotjeniids. 



W. A. CuNNiNGTON, M.A., Ph.D., F.Z.S. 



Zoological Results of the Third Tanganyika Expedition 

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

 the Branch iura. 



William Sohaus, F.Z.S. 



New Species of Rhopalocera from Costa Rica. 



Arthur Willey, M.A., D.Sc, F.R.S., F.Z.S. 



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. 



The following paper has been received : — - 

 Edith E. Bamford. 



Variations in the Skeleton of the Pectoral Fins of Pohjpierus. 



