A CATALOGUE OF THE BRITISH MARINE ALGE 29 
eamill). Creeping si agers soe cortical filaments of Mesogloia 
vermiculata. Probably not uncommon 
S. volubile Thur. Cline ‘of Devon (Torquay, Wembury, Teign- 
. intestinum Holm. & Batt. (= Entonema saaninti Reinsch). 
Coast of Dorset (Weymouth), Immersed in the cortical layers of 
Si ngtantaingy byssoides, Very semis 
S. fasciculatum Thur. Const of Dorset (Weymouth) and North- 
umberland (B (Berwick). Wales: Angles (Llangwyfan). Scotland: 
Berwicks. (Burnmouth) ; Bute (Isles of Cumbrae and Bute). Chan- 
nel Islands (Alderney). Im petra Sinica the cortical filaments 
of Castagnea virescens—P simplex ee Coasts of Dorset (Swanage) 
and Bute (Isle of Cumbrae). Im seat between the cortical fila- 
ments of Helminthora divaricata mnt Cas tagnea virescens. Rare. 
S. infestians Batt. (= Endodictyon infestians Gran.). Coast of 
Hants (Southsea). Endozoic in species of Alcyonidium, Rare. 
S. e@quale Oltm. Coasts of Devon (Teignmouth) ; Dorset 
(Swanage); Hants (Isle of Wight). Scotland: Bute (Isle of 
Cumbrae). Immers <3 in the cortical layer of Chorda filum. Pro- 
<a not peace 
velophorus (= Eectocarpus "helapshae us Rosenv.). Coasts of 
sane gad (Berwick) and Bute rons of Cumbrae). Immersed 
in the fronds of Petrocelis cruenta. Rare 
Gen. 88. Ecrocarpus Lyngb. 
1. Parasitic Species. 
E. parasiticus Sauv. Coasts of Dorset (Weymouth, Swanage), 
a 2 dag cng eepereo (Berwick), and Bute (Isle of 
Cum ae). Parasi the us of Lasts rubrum and 
Cytron * ie ascens. Prob ably not unco 
E. Stilophore Orn. Coasts of Cornwall (Falmouth) and Dorset 
(Weymouth, Swanage). Parasitic in the fronds of Stilophora rhi- 
Rare. — B caspitosa Rosenv. Coast of Dorset (Weymout 
Biwntag e), Sg — y cervicornis “Batt, Coast a Cornwall (Fal- 
mouth) Very rare. 
E. clandestinus Sauv. (= Elachista clandestina Orn.). Coasts of 
ite 1 (Sidmouth) and Nordhumbe = nd. Parasitic in the thallus 
of various species of Fuci, Ver 
. brevis Sauv. Coast of Northumberland (Berwick). Parasitic 
in the thallus of Ascophyllum nodosum. - 
aliantei Born. in Journ. de Dakanigtn, yi. 1892. Parasitic 
in the thallus of Cuiktetird ericoides. Cobo, Guernsey, July, 1900, 
Mrs, A. Hamber, 
