A CATALOGUE OF THE BRITISH MARINE ALG^E 45 



yracilis (= M. gracilis Carm.). S.W. coast of Scotland (Appin, 

 Isle of Cumbrae). Rare. 



C. Zostera Thur. (= M. virescens (3 zoster icula Harv.). Coasts 

 of Cornwall (Scilly Islands, Mount's Bay) ; Dorset (Weyrnouth, 

 Swan age). Wales: Anglesea (Towyu-y-Capel). Scotland: Argyle 

 (Appin) ; Bute (Isles of Bute and Cumbrae) ; Ayr (Seamill). Ire- 

 land : Koundstone Bay, Co. Galway. Channel Islands (Jersey, 

 Guernsey). Probably common. 



C. contorta Thur. Coasts of Dorset (Weymouth) ; Sussex 

 (Worthing) ; Ayr (Fairlie). Rare. 



Gen. 118. MYRIOCLADIA J. Ag. 



M. Lnveni J. Ag. Coast of Sussex (Brighton). Very rare. 

 M. tomentosa Crn. Coast of Dorset (Weymouth). Very rare. 



Gen. 119. MICROCORYNE Strornf. 



M. ocellata Stroinf. Coast of Dorset (Ferry Bridge, near Wey- 

 mouth). Very rare. 



Gen. 120. BUFFHAMIA Batt. 



B. speciosa Batt. Coast of Dorset (Ferry Bridge, near Wey- 

 mouth). Very rare. 



Gen. 121. PETROSPONGIUM Nag. 



P. Berkeleyi Nag. (= Leathesia Berkeley i Harv.). Coast of 

 Cornwall (Trevone, St. Minver, Bossiney, Mount's Bay, Looe) ; 

 Devon (Plymouth, Tor Abbey, Sidmouth) ; Dorset (Portland, 

 Chapman's Pool, Durlston Head, Swanage). Wales : Anglesea 

 (Towyu-y-Capel). Ireland: Not uncommon on the west; coast 

 (Miltown Malbay and Kilkee, Co. Clare; Valentia, Co. Kerry, &c.). 

 Channel Islands (Guernsey, Alderney). Rare. 



Gen. 122. LEATHESIA S. F. Gray. 



L. di/forniis Aresch. (= L. tuberiformis S. F. Gray). Coasts of 

 Cornwall (Scilly Islands, St. Minver, Padstow, Mount's Bay, Fal- 

 mouth, Looe); Devon (Plymouth, Paignton, Torquay, Sidmouth); 

 Dorset (Weymouth, Swanage) ; Hants (Isle of Wight) ; Yorks. 

 (Scarborough, Filey) ; Durham (Marsden) ; Northumberland (Cul- 

 lercoats, Alumouth, Bamborough, Holy Island, Berwick) ; Cheshire 

 (Hilbre Island) ; Isle of Man. Wales : Anglesea (Liang wy fan, 

 LlanvaBlog). Scotland : Berwicks. (Burnmouth) ; Haddington 

 (Dunbar, Longniddry) ; Edinburgh (Joppa) ; Fife (Elie, Earls- 

 ferry, Pittenweern) ; Forfar (Arbroath) ; Orkney Islands (Ryasgjo, 

 Rinansey, &c.) ; Argyle (near the Falls of Lora) ; Bute (Isles of 

 Arran and Cumbrae) ; Ayr (Seamill, Saltcoats). Ireland generally. 

 Channel Islands (Jersey, Guernsey, Alderney). Very common. 



Subgenus CORYNOPHLCEA Kiitz. 



L. crispa Harv. Coasts of Bute (Isle of Cumbrae) and Alderney. 

 Verv rare. 



