278 TRANSACTIONS LIVEKPOOL BIOLOGICAL SOCIETY. 



Family EucopiDiB. 



Clytia johnstoni, Alder (16). 



Several colonies of the hydroid stage were dredged off 

 Port Erin on March 24th, 1894. They were placed in a 

 vessel of sea-water, and for many days medusae were 

 budded off in large numbers. The young medusa corres- 

 ponds exactly to the description and figure given by 

 Hincks. I tried to rear the medusae, but failed to get 

 them to live beyond a few days. I also obtained a few 

 specimens with the tow-net in the bay at the end of 

 March. One specimen taken on March 25th had a single 

 adradial tentacle-bulb, and the interradial tentacle- bulbs 

 showed signs of budding out tentacles. 



Encope octona, (Forbes 15). 



Thaumantias octona, Forbes {9). 



Clubb (7) records this species as fairly common off Port 

 Erin, August, 1885. 



Distribution. — St. Andrews, Cornwall, Oban, Arran, 

 Tarbert (Loch Fyne). 



Obelia lucifera, (Forbes 15). 



Thaumantias lucifera, Forbes (9). 



I have taken specimens in Port Erin Bay during August, 

 1892 ; May, 1893 ; and April, 1894. Professor Herdman 

 obtained specimens off Port Erin in August, 1885. 



Distribution. — Heligoland, Shetland, St. Andrews, Dart- 

 mouth, Plymouth, Lizard Point, Hebrides. 



Tiaropsis multicirrata, (Sars 15). 



Thaumantias melanops, Forbes (9). 



Three specimens taken in Port Erin Bay on May 6th, 

 1893. The largest 7 mm. in diameter, with about 180 

 tentacles. 8 marginal vesicles, with a black ocellus at the 

 base of each. 



