FAUNA OF THE OUTER WESTERN AREA OF THE CHANNEL. 325 



CAMPANULARIIDAE. 

 Clytia johnstoni (Alder). 



Only observed at Position 5, on InacJius dorsettemis. 

 Depth, 42 fath. 



Campanularia flexuosa (Hincks). 



At Positions 14, 31, 32, 35, 38, 43, 49, 51, 59, 60, 62, 80. Chiefly 

 on Cellaria, also on other Hvdroids, and one on a shell fragment. 

 Mostly small colonies, not exceeding 8 mm. in height. The largest 

 occurred at Position 62, on a small shell fragment with several 

 branching growths arising from the basal stolon. Specimens from 

 32, 51, and 62 bore gonangia. A few of the others incline to the 

 more slender form of angulata, but there seems little doubt that 

 they all belong to the same species. 



Depth, 40-51 fath. 



Campanularia hincksi, Alder. 



At Positions 3, 4, 7, 12, 13, 31. 32, 33, 34, 35, 38, 42, 43, 45, 47, 49, 

 53, 56, 60, 62, 80. 



Depth, 40-51 fath. 



On Hvdroids, Cellaria, dead shells, and one on Scalpellum. A single 

 colony only occurred with gonangia at Position 62. 



Campanularia verticillata (Linnaeus). 

 One colony at Position 3, on Cellaria. 

 Depth, 40 fath. 



Campanularia raridentata, Alder. 



Scattered polyps, apparently identical ^vith this species, were ob- 

 served at Positions 4, 12, 13, and 49. 

 Depth, 40-47 fath. 



Gonothyrea gracilis (Sars). 



At Positions, 14, 33, 35, 51, 58, 59, 62. 



Depth, 42-50 fath. 



On Cellaria, occurring in most cases as single scattered polyps, but 

 occasionally of erect branching form. Gonangia were borne on 

 specimens from Positions 14, 35, and 58. 



This species which has not hitherto been recorded in the Plymouth 

 fauna has a wide distribution : — Norway, Baltic, Helgoland, Connemara, 

 Liverpool Bay, Pas de Calais, Messina, South America (cp. Hartlaub, 

 53 ; Broch, 50 ; Thornely, 63). 



