ANCULA. 581 



most elevated part of the back three white yellow-tipped 

 bipinnate ramose branchial plumes, surrounding the vent, 

 and surrounded by about ten linear stout processes, white, 

 tipped with bright orange. An orange line down the 

 centre of the back. Dorsal tentacles with long stout 

 peduncles each furnished with two linear orange-tipped 

 processes ; club of the tentacles with eight or ten broad 

 yellow laminae. Eyes placed rather closely together at 

 their bases. Buccal tentacles oblong, obtuse, yellow- 

 tipped. Foot linear. 



This mollusk inhabits the littoral zone under stones ; it 

 has been taken on the Northumberland and Durham 

 coasts, on the south coast of England, and in Dublin Bay 

 (A. and H.). Mr. Price finds it in the estuary of the 

 Mersey, and Mr. Harry Goodsir observed it at Anstruther, 

 in Fifeshire. It ranges to the Norwegian seas. 



