828 MR. E. T. BROWNE ON BRITISH MEBUS.E. [Nov. 16, 



branches of the canals leave the main canal between the generative 

 organs and the stomach (see fig. 12, p. 828). 



Fig. 12. 



Di-pleurosoma hemispharicuvi. 

 Diagram showing the position of the gonad upon the radial canal. 



It is evident that these specimens do not agree with AUman's 

 description of the species. He clearly states that there ai-e only 

 three primary canals, which give off branches, and that the gene- 

 rative cells are confined to these canals and are situated close to the 

 stomach. 



I think a fresh description of this species is required, and that a 

 large number of specimens ought to be examined, so as to find out the 

 normal plan of the canal-system and the extent of its variations. 



Distribution. England — Brighton, Haechel. 



Ireland — South Coast, Allman. Kingstown, Haddon. Valencia 

 Island, E. T. B. 



POLYCANNA FORSKALEA (Forbes). 



^quorea forshalea, Forbes. P. Z. S. 1851, p. 272, Bad. pi. iv. 



On the 5th September, 1896, five sped mens of this beautiful 

 medusa wej'e captured in Valencia Harbour, and others were seen 

 swimming at too great a depth to be taken in a hand-net. On 

 the previous day a large one bad been taken by the Misses Delap. 

 All the specimens were in splendid condition, and fortunately 

 belonged to different stages, which are described in the order of 

 Ibeir size 



