10 A CATALOGUE OF THE BRITISH MARINE ALGE 
Fam. Uxnvacem Rke. 
Gen. 43. Prinesuemia Rke. 
P. scutata Rke. Coasts of Northumberland (Berwick), Kent 
Margate), and Dorset (Swanage); §.W. Scotland (Cumbrae, 
Ardrossan) ; Ireland (Belfast Lough). Rare. 
Gen. 44. ProropEerma Kiitz. 
P. marinum Rke. §.W. Scotland (Cumbrae). Rare. 
Gen. 45. Utvetra Crn. 
U. lens Crn. -Coast of Devon (dredged in Plymouth Sound). 
are. 
U. fucicola Roseny. (= U. lens Batt. pro parte, non a —— 
of Northumberland (Berwick) and Cheshire (Heswa 
gma —pPg lobosa Batt, Coast of N El tebedant (Berwick). 
are 
U, confluens Roseny. Coast of Dorset (Weymouth). Probably 
not uncommon, 
Gen. 46. Monosrroma Thur. 
a Sees 
M. Wittrockii Born. Coast of Devonshire (Fowey River, Salt- 
‘ash, Plymouth); S. Scotland (Cayber rt). Rare. 
. latissinum Wittr. Coasts of Devon (Otterton) and Dorset 
(Portland 
M. laceratum Thur. Coasts of Cornwall (Lostwithiel, near 
Wadebridge), Dorset (Portland), and — (Maldon). Rare. 
M. quaternarium Desmaz. Pl. Crypt. Franc. (nouv. sér.), no. 603. 
Coasts of Dorset (Poole Harbour, April, 1889 ; Weymouth, April, 
1890) and Sussex (Pagham, April, 1892; E. M. Holmes). 
M. orbiculatum Thur. ‘ Sur quelques algues nouvelles” in Mém. 
Soc. Nat. Cherb. vol. ii. p. 888. Coasts of Cornwall (Falmouth, 
—— B) F. W. Smith) and Dorset (Weymouth, April, 1882; 
M. pissed Farlow, Mar. Alg. New nel p. 42, Coasts of 
Cornwall (Falmou h, April, 1882, R. V. Tellam; and May, 1897, 
E. George) and cee (Pagham, April, 1892; E. M. Holmes). Rare. 
B&B Unvari fies 
M. fuscum Wittr. emend. Rose enuina Batt. Coasts of 
Northumberland (Berwick) and Yorkshire tBcarboeotiglitt gre 
Cumbrae, Orkney Islands, Skaill), Not uncommon. — Pp B 
att. (= M, Blytii Wittr.). Coasts of Northumberland Escrwick) 
and Kent (Dover) ; Scotland (Tayport, lepers ae un eT ae 
. Greville: Wittr. emend. Roseny. a ae nv. (= 
lactuea a Grey.). Coasts = Devon (Plymou as. uae Capel (Fal- 
mouth), Dorset (Weymouth), Hants (Isle ‘of W ght), and North- 
umberland (Holy Isiand, Berwick); $. Scotland (Bute, Firth of 
