262 



MS. A. E. HUNT ON THE TNFLTJENCE OF 



1. A Grammoptera, a single specimen, doubtful if not an 

 extreme variety of Q-. amentata. 



2. A small species of tlie group MonohammincB, one imperfect 

 example. 



3. A species apparently allied to Oylindilla. 



4. An imperfect specimen of a species possibly of the group 

 NipJioninw. 



The following is indeterminable : — 



PoGONOCHERgs GRANT7LATTJS, Motsch. Bull. Mosc. 1866, i. 

 p. 174. 



From the description it cannot belong to the genus Pogono- 

 cherus. 



DESCEIPTION OF THE PLATES. 



On the Influence of "Wave-currents on the Fauna inhabiting 

 Shallow Seas. By Aethtjh E. Htjnt, M.A., F.G.S. (Com- 

 municated by Dr. J. GtWyn Jeffreys, F.E.S., F.L.S.) 



[Bead 5tli Jime, 1884.] 



The action of waves below the surface of the water decreases so 

 rapidly as the depth increases that naturalists have been in the 

 habit of neglecting submarine wave-action altogether. In proof 

 of this I may refer to Sir Charles Lyell's assertion that " the agi- 

 tation caused by waves, even during storms, extends to a very 

 slight depth " (' Elements of Greology,' 6th ed. p. 20) ; and to Dr. 

 Giinther's statement that " the agitation .of the water caused by 



