86 A CATALOGUE OF THE BRITISH MARINE 



7?. membranaceum Magn. Coasts of Devon (Plymouth, Sidmouth) ; 

 Sussex (Brighton); Northumberland (Cullercoats, Berwick) ; Cheshire 

 (Hilbre Island); Isle of Man; Anglesea. Scotland: Berwicks. (Burn- 

 mouth) ; Edinburgh (Joppa) ; Orkney. Ireland: Waterford (Dun- 

 garvan Bay). Not uncommon. Var. ft macroclada Rosenv. 

 Plymouth, Berwick. Rare. 



E. munitum Rke. Dorset (Weymouth). Very rare. 



E. Seiriolanum Harv. Gibs. Coast of Anglesea (Puffin Island). 

 Very rare. 



E. }>allens Hauck. Coast of Devon (Seaton). Very rare. 



R. Eothii Nag. ( = CaUithamnion Rothii Lyngb.). Common on 

 most of the rocky parts of the British coasts. 



R. parasitic-urn Batt. ( = R. sparsum Kjellm.). Coasts of North- 

 umberlend (Berwick); Berwicks. (Burnmouth); Haddington (Dun- 

 bar); Fife (Elie); Forfar (Arbroath); Argyle (Loch Etive) ; Bute 

 (Curnbrae), Not uncommon. 



R. floridulum Nag. (= CaUithamnion floridulum Ag.). Coasts of 

 Cornwall, Devon, Dorset, Hants, Kent, Essex (Dovercourt), Yorks., 

 Durham, Northumberland, Cheshire (Hilbre Island), Isle of Man, 

 Anglesea. Scotland: Haddington, Edinburgh, Fife, Forfar, Kin- 

 cardine, Aberdeen, Orkney, Argyle, Bute. Ireland: Antrim, Gal- 

 way, Clare, Kerry. Channel Islands. Not uncommon. 



Gen. 215. CALLITHAMNION Lyngb. 



C. tenuissimum Kiitz. Coasts of Cornwall (Trevone, the Lizard, 

 Falmouth); Devon (Plymouth) ; Dorset (Studland) ; Orkney (Kirk- 

 wall) ; Channel Islands (Jersey). Rare. 



C. byssoides Arn. Coasts of Cornwall (Mount's Bay, Falmouth, 

 Whitsand Bay) ; Devon (Plymouth, Salcombe, Dartmouth) ; Dorset 

 (Swauage, Studland) ; Hants (Isle of Wight) ; Sussex (Brighton) ; 

 Norfolk (Cromer, Eunton) ; Yorks. (Scarborough) ; Carnarvon. 

 Scotland: Orkney (Kirkwall) ; Bute (Arran, Cumbrae). Ireland 

 (Strangford Lough, Portaferry, Cork Harbour, Dublin Bay). 

 Channel Islands. Not uncommon. 



C. Rabenhorstii Crn. Dorset (Studland). Rare. 



C. polyspermum Ag. (incl. C. Grevillei Harv. et C. scopulorum 

 Traill). Coasts of Cornwall, Devon, Dorset, Hants, Sussex, Kent, 

 Essex, Norfolk, Yorks., Durham, Northumberland, Cheshire (Hilbre 

 Island), Isle of Man, Anglesea, Carnarvon. Scotland: Berwicks., 

 Haddington, Edinburgh, Fife, Forfar, Kincardine, Aberdeen, Elgin, 

 Orkney, Argyle, Bute, Ayr. Ireland : Cork, Wicklow, Dublin, Down, 

 Antrim, Donegal, Galway, Clare, Kerry. Channel Islands. Common. 



C. rosenm Harv. Cornwall (Scilly Islands, Mount's Bay, Fal- 

 mouth, Looe) ; Devon (Plymouth, Torquay) ; Dorset (Weymouth, 

 Swauage) ; Hants (Isle of Wight) ; Sussex (Brighton) ; Kent 

 (Folkestone); Essex (Southend); Norfolk (Yarmouth, Cley); Yorks. 

 (Scarborough) ; Durham (Roker) ; Northumberland (Berwick) ; 

 Cheshire (Hilbre Island). Wales (Anglesea, Carnarvon). Scot- 

 land: Berwicks. (Burnmouth) ; Haddington (Dunbar) ; Edinburgh 

 (Joppa) ; Fife (Earlsferry) ; Kincardine (Girdleness) ; Aberdeen 

 (Peterhead) ; Orkney (Kirkwall) ; Bute (Isles of Bute, Arran, and 



