46 PELAGIC LIFE, FJ^LMOUTH. 



last year, was detected in the gathering made on the 1 3th. The 

 next day while drifting in my canoe during a brief calm, I 

 noticed Sarsia gemmifera in abundance beneath the surface of 

 the calm sea. On the morning of the 18th, while dipping 

 medusse from the sea along the inner edge of the northern 

 breakwater, I observed a single gonozoid of Cladonemma 

 radiatum swimming in its peculiar manner beneath the surface. 

 Hitherto this species has only been observed in small pools of 

 water near the dry-docks when left uncovered by the tide ; and to 

 find a specimen swimming freely in the sea and in a locality 

 where the water was between three and six fathoms in depth 

 was interesting. Since then I have noticed several more 

 specimens of the same species under similar circumstances in 

 various places in the tidal docks. During the morning of the 

 21st a single living example of Saphenia mirabilis was captured 

 in the tow-net. My friend, Mr. Cunningham,'*' captured large 

 numbers of this species of Leptomedusa on the night of the 16th 

 of July, 1891, in the neighbourhood of the Eddystone lighthouse. 

 The same species has also been observed in the Firth of Forth 

 by Dr. Shethill Wright in 1859. These specimen measured an 

 inch in diameter; those secured by Mr. Cunningham "were not 

 so large, the largest being only about 12-m.m." in diameter ; 

 and my single individual measured 14-m.m. across the umbrella. 

 After having made a careful drawing of my specimen, I placed 

 it in a jar of sea- water, through which a slow current of water 

 continuously passed, with a view to study its further development ; 

 but I was unsuccessful, for after two days confinement it died, 

 and since then I have not been fortunate enough to capture any 

 more specimens. On the 25th the following forms were detected 

 in the surface-net gathering made that morning: — Willsia stellata 

 and Sarsia prolifera, occurring in profusion, and with them 

 a few examples only of Bolina hydatina. Prof. Edward Forbes 

 gathered considerable numbers of the first-named species in 

 1836 in Penzance Bay. Sarsia gemmifera was also noticed in 

 shoals, but on the other hand S. tubulosa were only sparingly 

 present. In the gathering made with the net, worked three feet 

 from the bottom in the deep water in the main channel of the 

 harbour on the same morning, a charming specimen of Saphenia 

 dinema was discovered ; it measured 5-m.m. in height and 



