HALICLYSTUS AURICULA (rATHKe), AND OTHER MEDUS/E 285 



had not the satisfaction of seeing it. From his description 

 there can be no doubt it was a Rhicostovm, in all probability 

 R. octopus (L.). It was about 16 inches in diameter, there 

 were eight arms or appendages, and it was of a solid con- 

 sistency. The beautiful reddish-purple colour of the margin 

 of the "umbrella" was specially commented on. Pearcey 

 {Trans. Nat. Hist. Soc, Glasg., vol. vi., n.s., 1902, p. 244) has 

 recorded the occurrence of a Rliisostoina — species not deter- 

 mined — at the mouth of the Firth of Forth, a few miles 

 south-east of the Isle of May. On the west coast R. octopus 

 is recorded from the Firth of Clyde (Browne, Proc. Roy. Soc. 

 Edin., XXV., 771). 



PJiialidium cyinbaloideum (v. Bene), — On 14th June 1909 

 1 secured a specimen — one of several seen — of this little 

 medusa in Burntisland Harbour, and sent it to Mr E. T. 

 Browne, who kindly determined it for me. It is an addition 

 to the list of medusae and ctenophores from the Firth of 

 Forth dealt with in the paper contributed by Dr J. H. 

 Ash worth and myself, in December 1908, to the Proceedings 

 of the Royal Physical Society of Edinburgh (xvii., pt. 6, 

 pp. 300 to 311). The hydroid from which this medusa is 

 liberated belongs to the genus Canipanulina, either C. repens 

 or C. turrita according to Browne (Report on Medusae found 

 in the Firth of Clyde, Proc. Roy. Soc. Edin., xxv., pt. 9, 

 p. 771, 1905). The former is recorded from the Forth, but 

 apparently not the latter. 



Regarding the species recorded in the 1908 paper referred 

 to above, further occurrences of the majority of them might 

 be cited, but it may be enough to give the following: — 

 Sarsia tubulosa, Granton Harbour, common, 5th June 1909, 

 and Burntisland Harbour, a few, 14th June 1909 ; 

 Melicertidiuin octocostatuni, plentiful in a creek at the Isle 

 of May, 2 1st September 1910; Eutonina socialis, Granton 

 Harbour, very common, 5th June 1909, Burntisland, 

 abundant and of various sizes, many (mature) being as 

 much as 30 to 35 mm. in diameter, 14th June 1909, North 

 Berwick, plentiful, and Isle of May, a few, 17th June 1909; 

 Tiina bairdii, many stranded between North Berwick and 

 Cant}' Bay in March 1909 and at Largo Bay the following 



