38 



8. BUGULA MURRAYANA (Johnston). 



From the fishing boats, Cullercoats, rather rare. More common 

 from the deep water boats. Alder (a). 



The normal variety has been ob tamed at Station VIII., and 

 from 40 fathoms east of the Longstone. 

 Ocecia. — June. 



* Var. FRUTICOSA. Plate I., Fig. 1. 



This variety has been obtained once from Station VII., and in 

 fair abundance from one of the Station IV. dredgings. The front 

 surface of these colonies resembles Hincks' figure exactly, but the 

 dorsal surface is very different, being complicated by the presence 

 of a peculiarly shaped calcareous framework. This structure is 

 also present on a few zocecia of one of the colonies of the normal 

 form of B. murrayana. I have not been able to find out the nature 

 or the use of this structure, but give a figure representing it. 



10.* BUGULA GRACILIS var. UNCINATA, Hincks. Plate I., 

 Fig. 2. 



A few very small colonies of a species of Bugula have been found 

 growing on the stems of a hydroid which was coated with Alcyoni- 

 dium parasiticum from 30 fathoms east of Newbiggin and from the 

 Import Dock, Blyth. 



The form of the zocecium resembles that of B. gracilis figured 

 by Hincks. 



Dr. Harmer, who has examined this specimen, has referred it 

 to B. gracilis var. uncinata, Hincks, with some doubt, owing to 

 the fact that the colonies are very young. 



Flustrid^e. 



10. FLUSTRA FOLIACEA (Linmeus). 



Common on hard ground in a few fathoms water. Alder (a). 

 Very abundant from Stations III., IV. and IX. Also found 

 at Stations I., II. and V. 



Ocecia. — May and October. 



