REPORT ON THE TUNICATA. 283 



Scotland, I have taken Appendiculariidse in the tow-net at 

 Lamlash Bay, Arran, in Loch Fyne, and in the Sound of 

 Mull. Mr. Thomas Bolton, of Birmingham, informs me 

 that he has found Appendicidaria (species undetermined) at 

 Brodick Bay, Arran, off the pier at Llandudno, at Tenby, 

 and at Falmouth. Dr. John Lowe writes to me that he 

 found Appendicularia flahelliim in considerable quantity on 

 various occasions, from 1867 to 1873, in the river Ouse at 

 King's Lynn ; Prof. Haddon noticed the genus in Berehaven, 

 on the S. W. coast of Ireland, in the summer of 1885 ; Mr. 

 W. H. Shrubsole has frequently taken it with the tow-net at 

 Sheerness in 1885, 1884, and some previous summers ; and 

 Prof. Mcintosh, in answer to a query I sent to Nature, states 

 that Appendicidaria is prevalent in summer and autumn 

 along the east coast of Scotland. 



ascidiacea. 

 asciditE composite. 



Family. — Botryllid^ . 



Polycyclus savignyi, Herdman. 



Botryllus polycycluSf Savigny, Mem., p. 202, 1816. 



A large species of Polycyclus, which appears to be not 

 uncommon in deep water off the west coast, is, I believe, 

 identical with Savigny's Botryllus polycyclus. It is not the 

 same species as Polycyclus renierii (= Botryllus stellatus, 

 Renier), which has been described by Lamarck, and since by 

 Grube, Delia Valle, and von Drasche.* Whether this is the 

 Botryllus polycyclus, Sav. (?) of Alder, t is doubtful. He des- 

 cribes it as living under stones within tide marks. My 

 specimens have always been dredged from depths of from five 

 to twenty fathoms. 



* See, Die Synascidien der Bucht von Rovigno, p. 13, 1883. 

 f Cat. Mar. Moll., dc, Trails. Tyneside N.F.C, vol. i, p. 111. 



