54 



" At extreme low water mark, Cullercoats, a Bowerbankia is 

 found of a more lax mode of growth, sending off free shoots, and 

 having the cells a little more elongated and slender. This I take 

 to be a depauperated form of the true B. imbricata." Alder (a). 



96.* BOWERBANKIA CAUDATA, Hincks. 



A small colony of this species, consisting of only about half-a- 

 dozen cells, was found on the leg of Hyas coarctatus from Station V. 



Osburn (Bryozoa of the Woods Hole Region) gives this species 

 as Bowerbankia gracilis var. ca/iidata, and records it from various 

 parts of the east coast of America. 



Previously recorded British localities are Ilfracombe, Ply- 

 mouth and Anglesea. 



97. FARRELLA PEDICELLATA, Alder. 



Triticella pedicellata. Duerden, 1893 ; Hincks, 1880. 



On old shells of Buccinum undatum and Neptunea antiqua, 

 from deep water ; not uncommon. Alder (a). 



This species has only been recorded from one other British 

 locality, viz., from the west coast of Ireland (by Duerden in 1893), 

 where it was also growing on old shells. I have only found it 

 once when it was growing on Dicoryne conferta, which was itself 

 growing on the carapace and legs of Hyas coarctatus from deep 

 water. Nordgaard also notes it growing on Dicoryne conferta. The 

 cells in this large colony grow from a thin creeping stolon as described 

 by Alder, and not from a continuous horny crust (Duerden). The 

 pedicels vary in length from \ to 4 or 5 times the length of the cell. 



98. CYLINDROECIUM DILATATUM (Hincks). Avenella fusca 



(Busk). 

 On Flustra truncata and Plumularia catherina, from the coral- 

 line zone, Cullercoats. Alder (a). 



On Gemellaria loricata from Stations II. and IV. 



99. BUSKIA NITENS, Alder. 



On Plumularia falcata, Campanularia dumosa, &c, from deep 

 water ; rather rare. Alder. On a stone at low water mark, 

 Whitley. Coppin (a). 



This species appears to be common on both hydroicls and 

 branching Polyzoa from Stations II., IV., V., VII. and VIII 



