118 LIVERPOOL MARINE BIOLOGY COMMITTEE REPORT. 



This species has been obtained by the L. M. B. C, stranded 

 on the shore at New Brighton. 



Family. — Rhizostomid^. 



Rhizostoma pidmo, Linn. 

 " This large species may be considered rare in the district. 

 Mr. Price informs me that he has commonly observed about 

 three or four in a year. Mostly seen in the month of Sep- 

 tember, and later in the year " (Byerley). This species has 

 not been found during the last year ; but Mr. Walker states 

 that it is sometimes very common, and that he has often 

 seen many hundreds in a day. 



[None of the Siphonophora belong properly to the Liver- 

 pool Bay Fauna, but Mr. T. J. Moore informs me that" 

 numerous specimens of Physalia pelagica were found cast 

 ashore at Southport, after strong westerly gales, at the end 

 of Feb., 1860, and several examples were obtained for the 

 Liverpool Museum.] 



CTENOPHORA. 

 Order.— SACGATA. 

 Family. — Cydippid^ . 



Pleurobrachia pileus, Flem. 



This species appeared in great profusion in the neighbour- 

 hood of Hilbre Island, towards the end of May, 1885. A few 

 specimens were also obtained by Professor Herdman off 

 the south coast of the Isle of Man, during the month of 

 August, in the same year. 



Byerley records it as being " found mostly early in April, 

 but also, more sparingly, at other times." Mr. Price * 

 records it as being very plentiful at Woodside Slip, in 1834. 



* Old Price's Remains, Liverpool. 



