230 



BRITISH CORALLINES. 



Halimeda opuntia, Zamojir. Cor. Flex. 308. Corall. 139. Flem. 



Brit. Anim. 513. Schweig. Haiidb. 437. 

 Codium opimtia, Spreng. Syst. Veg. iv. 366. 



Hah. " This species has not hitherto been recorded as a 

 British zoophyte, but is said to inhabit the Atlantic and Medi- 

 terranean. I, however, possess a specimen, formerly belonging 

 to the late Dr Walker, to which the following note was annex- 

 ed, in his own handwriting : ' Submarine plant from the rocks 

 at Salterness, in Kirkbane. An Bombycina ? It covers the 

 rocks with a close turf.' It thus appears to be a native of the 

 shores of the Solway Firth. Wlien a joint was macerated in 

 weak acid, the branched tubes supporting the polypi appeared 



as they are represented by Ellis." Rev. Dr Fleming. " A 



specimen of this Flahellaria in Mr R. Ball's collection, was 

 found some years ago by Mr William Todhunter, among the 

 refuse of a Torbay (Devonshire) fishing-boat, in Dublin bay ; 

 it was brought up in the trawl-net somewhere between these two 

 ports." W'in. Thompson. 



Fiz. 22. 



Halimeda opuntia. 



