A CATALOGUE OF THE BRITISH MARINE ALG 7 
C. crustacea Thur. Coasts of Devon (Salcombe, Sidmouth, 
massa Dorset (Swanage), and Northumberland (Berwick). Not 
u 
CO: fasctalliks Ag. Coasts of Dorset (Swanage) and Northumber- 
land (B erwick, Holy mye hd Scotland (Cumbrae, Lismore, Elie, 
Fife) ; oe er (Miltown Malbay). 
C. vivipara Harv. Nereis "Bova da iii. p. 106 (1858). 
eianiths May, 1893; J. Jack. 
Gen. 24. Dronornrr Zan. 
D, ee Born. & Flah. in Ann. Se. Nat. vii. sér. Bot 
vol. iii, p. 877. On rocks near high-water mark. Wershiedia 
Aug. 1900; and Sidmouth, Aug. 1901; BE. A.B. 
Subtribe Rrvuaricex Kitz. 
Gen. 25. Isacris Thur. 
I. plana Thur. (= Rivularia plana Harv.). Coasts of Devon- 
shire ( Sidmouth) Hants (Ventnor, I. W.), Sussex (Bognor), Essex 
(Blackwater), Dorset renege) Weymouth), and Nortisumberland 
(Berwick). Not uncommon. — Pf fissurata Born. & Flah. Coas 
of Northumberland (Berwick). 
Gen. 26. Rivuzari Ag. 
R. Biasolettiana Menegh. (= Schizosiphon Warrenia Casp.). 
Coasts of Devon (Sidmouth, Plymou uth), Cornwall (Falmouth, 
Penzance, Wadebridge), Yorkshire (Scarborough), Northumberland 
(Berwick), and Dorset (Weymou th); N. Wales (Hilbre I., Point of 
ial —— (Cumbrae) ; Ireland (Torr Head, Antrim). Not 
unco 
a e 
R. nitida Ag. (= R. pli hee Carm.). Coasts of oot (Torbay) 
and Cornwall (Mounts Bay, Saltash, Trevone) ; Scotland (Appin, 
Ballantrae, Eyemouth) ; Ireland (Iunischerig Island, Malby). Not 
uncommon 
builata Berk, (= R. nitida Peeimens 6 Mecne of Devon (Tor- 
y, &e.) and Cornwall (Looe, Fowey, St. Minver, Mounts Bay) ; 
fea. South and West; Channel aves: (Guernsey). Rare. 
Ai. mesenterica Thur. (= R. polyotis Holm. & Batt. Rev. List, non 
Born. & Flah.). Coast of Devon (Torquay). Rare. 
R. australis Harv. Coast of Devon (Torquay). Rare. 
Gen. 27. Bracnyrricnta Zan. 
B. Balani Born. & Flah. Coasts ye aad (Bournemouth, 
Swanage) and Devon (Sidmouth), Very 
Tribe II. SrrosrpHontacem Rabenh. 
Gen. 28. Masticgoconzus Lagerh. 
estarum Lagerh. Not uncommon on the shores of England and 
8. Sostinnd, Ireland (Belfast Lough); Channel Islands (Guernsey). 
