93 



to the conclusion that they do not do so. Towards the end of 

 the breeding season the umbrella had degenerated, and the ova 

 were being set free from the manubrium in situ. 



The medusoids " Sarsia tuhulosa " were very abundant in 

 the supply tanks in July (with a few ova remaining at the end of 

 the long manubrium), also in June in the open sea, and sometimes 

 cast up on shore. 



6.* SARSIA PULCHELLA, Allman. 



Very common in the Laboratory tanks on stones, &c. 

 Gonophores : medusoids hberated December- April. 



7. SYNCORYNE sp. 



Small SjTicoryne, probably young forms, were found growing 

 on other Hydroid stems, dredged from Stations 2, 3, 7 and 8. 



8. ZANCLEA IMPLEXA (Alder). Conjne implexa, Coryne 



jjelagica, Tuhularia implexa. 



On an old anchor from 40 fathoms, 30 miles east of Holy 

 Island (Howse). On shells of Fusus antiquus from deep water, 

 CuUercoats. Alder. 



On Anomia from 45 fathoms, 40 miles north-east of Shields. 



Gonophores : buds present in April. 



Family Clavid^. 



1. CLAVA MULTICORNIS (Forskaal). 



Not uncommon between tide-marks. Alder. 

 Not very common ; in rock-pools, &c. 

 Gonophores in May, June and September. 



2.* CLAVA SQUAMATA (Miiller). 



Very rare, washed up on Fucus vesiculosus at Cuilercoats, 

 1912. 



Gonophores in October. 



3. TUBICLAVA CORNUCOPEIA, Norman. 

 On Dentalium entalis. Alder. 



