38 



found to possess 5 or more radial canals, the greatest number being 

 7 instead of the normal 4. 



The Victoria Nyanza form of Limnocnida collected by Sir 0. 

 Eliot, F.Z.S., which was also dealt with in the paper, was believed 

 to be a variety, which differed from the Tanganyika form in that 

 the tentacles were more deeply imbedded ia ridges of jelly of the 

 exumbrella than in the Tanganyika form. All the individuals in 

 a collection from the Victoria Nyanza were females. 



The result of a reinvestigation of both Limnocnida and Limno- 

 codium had led the author to the conclusion that both genera 

 were to be referred to the Trachomedusse, in spite of the fact that 

 no other known Trachomedusan had gonads on the manubrium. 

 Reasons for this view were given as also for the association of 

 both freshwater meduspe with the Olindiadse. It was considered 

 exceedingly doubtful whether either Limnocodium or Limnocnida 

 ever passed through a hydroid stage at all. 



This Meeting closes the Session 1906-1907. The next Session 

 (1907-1908) will commence in November next. 



The following Papers are in hand : — 



1. Mr. Martin Jacoby, F.E.S. — Descriptions of new Species 

 of South-American Oryptocephalini. 



2. Mr. Knud Anbersen, — A Monograph of the Chiropteran 

 Genera Uroderma, Enchisthenes, and Artibeus. 



3. Mr. E. S. Russell, M.A. — Environmental Studies on the 

 Limpet. 



Communications inteaded for the Scientific Meetings of the 

 Zoological Society of Londox should be addressed to 



P. CHALMERS MITCHELL, Secretary. 



3 Hanover Square, London, W. 

 Jxme 2bth, 1907. 



