20 A CATALOGUE OF THE BRITISH MARINE ALG 
C. lanosa Kiitz. Coasts a Cornwall (St. oe sii: 
Not uncommon.—f Bost’ (Dillw.). Coasts of Doiries (Weym outh) 
and ~~ Suet ae Brighton, Worthing); Scotland (Porn 
Rather 
Fam. Gomontiacez Born. & Flah. 
Gen. 64. Gomont1a Born. & Flah. 
. polyrhiza Born. & Flah. (Immersed in the chalky shells of 
several serie of molluscs.) sar of se Teignmouth, Tor- 
quay, Sidmouth, Plymouth), Dorset (Weymouth, Swanage), Nor- 
folk eckae, and eptintita enland Banaiskys : Scotland (Dunbar, 
Cumbrae) ; Ireland (Belfast Lough). Not uncommon. 
G. manxiana Chodat. Castletown, Isle of Man. Rare ? 
Suborder SrepHonez Grev. 
Fam. Puyiuosipponace& Frank. 
Gen. 65. Osrreosium Born. & Flah. 
O. Quekettt Born. & Flah. Immersed in the chalky shells of 
various argh of molluscs. Coasts of Devon (Plymouth, Sid- 
mouth) a a: Nostinaiuixiilana (Berwick). Scotland: Bute (Isle of 
Ceankena) p Araylt (Loch Fyne); Dumbarton (Gare Loch). Not 
uncommon 
Fam. Hyprocastracem Rabenh. (Botrydiacee Rostaf. & Woron.). 
Gen. 66, Hatioystis Aresch. 
H. ovalis Aresch. (Valonia ovalis Ag.). Scotland: Argyle (Loch 
Goil); Bute Byles of Bute, Isle of Arran). Ireland: Antrim 
(N. side of Belfast Lough); Co. Dublin (Dalky Sound); Co. Water- 
ford (Helvick Point, Dungarvan Bay). Very rare, and only obtained 
dredging. 
Fam. Bryorsipacem Thur. 
Gen. 67. Bryopsts Lamour 
B. hypnoides Lamour. Coasts of Coraweli (Scilly Islands, 
Mounts Bay, Falmouth, Fowey, Looe); Devon (Ilfracombe, Tor- 
common on the W. coast of Irelan 
B. plumosa Ag. "Coasti of Oornwull (St. Minver, Mount’s Bay, 
Falmouth, Fowey, Looe) ; Devon (Plymouth, Exmouth, ba ae a 
&e.) ; Dorset (Swanage); Hants (Ventnor and Steephill, I. o 
Sussex (Bognor, Brighton, Hastings); Kent (Folkestone) ; ; Essex 
