A CATALOGUE OF THE BRITISH MARINE ALG^ 19 



Subgenus 2. ^GAGROPILA Kiitz. 



C. repens Kiitz. Coasts of Dorset (Weymouth) and North- 

 umberland (Spittal, near Berwick) ; Channel Islands (Jersey, 

 Guernsey). Very rare. 



0. Brownii Harv. Coast of Cornwall (Mousehole, Penzance) ; 

 Ireland (Duurea, Blackcastle, Wicklow). Very rare. 



C. cornea Kiitz. /3 verticiUata Kiitz. (= C. retroflexa Crn.), 

 Coast of Dorset (Weymouth) ; Ireland (Roundstone Bay, Faby 

 Bay, Connemara). Very rare. 



C. corynartlira Kiitz. /? spinescens Batt. Coast of Dorset (Wey- 

 mouth) ; Ireland (Roundstone Bay, Connemara). 



Subgenus 3. SPONGOMORPHA Kiitz. ( = ACROSIPHONIA J. Ag. partim). 



C. arcta Kiitz. Coasts of Cornwall (Mount's Bay, St. Minver, 

 Looe, Falmouth, Scilly Islands), Devon (Torquay, Plymouth, Sid- 

 mouth), Dorset (Swanage, Weymouth), Hants (Isle of Wight), 

 Sussex (Bognor), Norfolk (Cromer), Yorkshire (Scarborough), 

 Durham (Sunderland, &c.), and Northumberland (Holy Island, 

 Berwick, &c.) ; Cheshire (Eastham, Bromborough) ; Isle of Man ; 

 Wales (Auglesea, Puffin Island) ; Scotland (Duubar ; Joppa, near 

 Edinburgh; Elie, Fife; Orkney and Shetland Islands, Appin, 

 Ardchattan, Cumbrae, Arran, &c.) ; Ireland (Bantry Bay, Cork 

 Harbour, Antrim coast, &c.) ; Channel Islands. Not uncommon. 

 /3 vauchericB/ormis'H.B.YV. Coasts of Dorset (Weymouth, Swan- 

 age) and Northumberland (Berwick) ; Scotland (Dunbar). Rather 

 rare. y radians Batt. ( C. radians Kiitz.). Coasts of Cornwall 

 (Scilly Islands, Falmouth), Devon (Torquay), Dorset (Weymouth, 

 Swanage), Yorkshire (Filey), and Northumberland (Berwick); 

 Orkney Islands. Not uncommon. -- c) centralis Harv. Coast of 

 Devon (Torquay) ; Orkney Islands. Rare. 



C. Traillii Batt. ( = Aeroriphonia Traillii Batt.). Joppa, near 

 Edinburgh. Very rare. 



C. Sonderi Kiitz. Coast of Dorset (Weymouth); Orkney Islands. 

 Very rare. 



C. arctiuscula Kiitz. Coast of Northumberland (Berwick) ; 

 Scotland (Dunbar, Joppa, Arbroath). Probably not uncommon. 



C. stolonifera Batt. (= Acrosiplionia stolonifera Kjellm.). Coast 

 of Northumberland (Berwick) ; S.W. Scotland (Cumbrae). Rare. 



C. pallida Batt. (= A. pallida Kjellm.). Coast of Northumber- 

 land (Berwick) ; S.W. Scotland (Cumbrae). 



C. uncialis Kiitz. (incl. C. congregata Kiitz.). Coasts of Corn- 

 wall (St. Michael's Mount, Falmouth, St. Minver), Devon (Wilders- 

 mouth, Torbay, Bovisand), Dorset (Swanage), Suffolk (Felixstowe, 

 Harwich), and Northumberland (Berwick); Isle of Man; Wales 

 (Puffin Island, Aberystwith, &c.); Scotland (Dunbar ; Elie, Fife; 

 Orkney Islands, Lismore) ; Ireland (Malahide, Kingstown, Bal- 

 briggan ; Newcastle, Co. Down ; Rathlin Island, Antrim). 



C. bombycina Batt. (= Acrosiphonia bombycina Kjellm. ; C. lanosa 

 Harv. pro parte). Coasts of Devon (Torquay), Sussex (Bognor), 

 and Northumberland (Berwick) ; Scotland (Orkney Islands, Bute). 

 Not uncommon. 



