ON THE PELAGIC FAUNA OF PLYMOUTH FOR SEPTEMBER, 1897. 191 



Ectopleura dumorticri. — An early stage. This is an addition to the 

 fauna of Plymouth. The hydroid form has not yet been re- 

 corded for Plymouth. 



Agastra mira, Hartlaub. — A single specimen taken in the Sound on 

 31st of August. It is an addition to the Plymouth fauna. (For 

 a description of the medusa see Proc. Zool. Soc, pt. iv., 1897.) 



A List of Medu&ae for September only. 



An Incomplete List of Animals found in the Tow-nets during 



Septemher onh/. 



