A CATALOGUE OF THE BRITISH MARINE ALG^ 95 



Gen. 240. PETROCELIS J. Ag. 



P. cnienta J. Ag. ( Cruoria pellita Harv. in Phyc. Br., non 

 Lyngb.). Coasts of Cornwall (St. Minver, Mount's Bay, Falmoutb, 

 Fowey, Looe ) ; Devon (Ilfracombe, Torquay) ; Hants (Isle of Wight) ; 

 Yorks. (Scarbrough) ; Northumberland (Berwick) ; Cheshire (New 

 Brighton, Hilbre Island). Scotland : Berwicks. (Burnmouth) ; 

 Haddington (Dunbar) ; Edinburgh (Joppa); Fife (Elie, Earlsferry); 

 Forfar (Arbroath) ; Argyle (Appin, Oban, Lismore, Loch Goil) ; 

 Bute (Cumbrae) ; Renfrew (Gourock). West of Ireland : Clare 

 (Malbay) ; Channel Islands (Guernsey). Not uncommon). 



R. Hennedyi Batt. ( = Actinococcus Hennedyi Harv.). Coasts of 

 Yorkshire (Filey) ; Northumberland (Alnmouth, Holy Island, Ber- 

 wick). Scotland: Berwicks. (Burnmouth) ; Haddington (Dunbar); 

 Edinburgh (Joppa) ; Fife (Elie, Earlsferry) ; Forfar (Arbroath) ; 

 Kincardine (Stonehaven) ; Orkney (Kirkwall). Common on the 

 shores of Scotland and Northern England. 



Gen. 241. CRUORIA Fries. 



C. pellita Lyngb. Coasts of Cornwall (Penzance, St. Michael's 

 Mount, Pridmouth); Northumberland (Berwick). Scotland: Argyle 

 (Loch Goil); Eenfrew (Wemyss Bayi; Bute (Cumbrae); Ayr (Salt- 

 coats). Rather rare. 



C. adharens J. Ag. Coasts of Northumberland (Newbiggen, 

 Tynemouth, Berwick); Aberdeen (Peterhead, Aberdeen); Dum- 

 barton (Kilcreggan) ; Antrim (Cushendall) ; Clare (Kilkee). Not 

 uncommon. 



0. rosea Crn. ( = C. stilla Kuck.). Coast of Devon (Plymouth, 

 Wembury). Very rare, and only obtained by dredging. Var. /3 

 purpurea Batt. (= C. purpurea Crn.). Devon (Wembury). Very rare. 



Tribe SQUAMARIE^ Schm. 

 Gen. 242. CRUORIOPSIS Zan. 



C. Hauckii Batt. Coast of Devon (Plymouth). Very rare, and 

 only obtained by dredging. 



C. gracilis Batt. (= Playiospora gracilis Kuck. ; Cruoriopsis cruci- 

 ata Zan.? Batt. in Journ. Bot. Sept. 1896). Coast of Devon 

 (Plymouth). Very rare ; only obtained by dredging. 



Gen. 243. CRUORIELLA Crn. 



C. Dubyi Schm. (= Peyssonnclia Dubyi Cru.). Coasts of Corn- 

 wall (Pridmouth, Plymouth) ; Devon (Torquay, Sidmouth) ; Essex 

 (Blackwater Estuary) ; Yorks. (Scarborough) ; Northumberland 

 (Berwick) ; Isle of Man. Scotland : Berwicks. (Burnmouth) ; 

 Haddington (Dunbar) ; Forfar (Arbroath) ; Bute (Arran, Cumbrae, 

 Bute). Ireland: Galway (Roundstone). Channel Islands (Alder- 

 ney, Guernsey). Not uncommon. 



Gen. 244. PEYSSONNELIA Dene. 



P. Rosenvinyii Schm. Coasts of Cornwall, Devon (Plymouth, 

 Sidmouth), Dorset (Chapman's Pool), and Northumberland (Ber- 

 wick). Rare. 



