A CATALOGUE OF THE BRITISH MARINE ALG 99 
Devon (Plymouth, Sidmouth) ; Dorset  eengiags 8 Pool); Sussex 
(Bognor); Northumberland (Berwick). 
R. parasitica Batt. Coasts of Devon (Plymouth); ming eee 
(Arbroath). Ireland: Antrim coast. Com mmon on the co asts a 
Scotland, Northern England, and Ireland. 
a eon Ruopopuysema Batt. 
Georg oasts of mecha bee! Islands); Devon 
(uoan aN (Wepmonthy, Very 
Gen. 259. Eryruropermis Batt. 
. Alleni Batt. Coast of Devon (Plymouth). Very rare, and 
Say: sbinigad by dredging. 
Exciupep Sprcrgs. 
AIFS, 
Cystoseira barbata Ag. Sargassum bacciferum Ag, 8, vulgare Ag. 
Dasya Mullert Ag. Plocamium biserratum Dickie. _Hypnea muset- 
formis Lam. Gelidium cartilagineum Gaill. Suhria vittata J. Ag. 
Dovustrun SPECIES. 
Cladophora Gattye Harv. Hematocelis fisswrata Crn. (= the 
basal dise of Dumontia filiformis Grev. ?). 
CHances or NoMENCLATURE. 
Phaophila Floridearum Hauck = P. ane _ 
Epicladia Flustre Rke. = E-ndoderma Flus 
Pogotrichum filiforme Rke. = Litosiphon Viliformis Batt, 
Desmotrichum balticum Kiitz. = Punctaria baltica Batt. 
Phycolapathum crispatum. Kiitz, = Punctaria crispata Batt. 
Eindodictyon infestians hig = Streblonema infestians Batt. 
Ectocarpus virescens = HE, Mitchelle Harv. 
Ascocyclus globosus Be. = Hecatonema globosum Batt. 
Myrionema Liechtensternit Hauck = H. Li — Batt. 
Carpomitra Cabrere Kitz. = C. Sm Bat 
Saccorhiza bulbosa De la Pyl. = S. preter ot Batt. 
Dictyopteris polypodioides Ag. = D. membranacea Batt. 
Callithamnion lepadicola J. Ag. = Erythrotrichia Waite Batt. 
Chantransia trifila Bufth. = Acrochatium trifilum B 
Chantransia corymbifera Thur. = Acrochatium corymbiferum Batt. 
Nemation lubricum Duby = N. elminthoides Batt. 
Higartina mamillosa J. = = G. stellata ap 
Phyliophora rubens Grev. = P. epiphylla Bat 
Cystoclonium ners hipoly Kitz. = C. pier Batt. 
Catenella Opuntia Grev. = C. repens Batt. 
Calliblepharis Jubata Lge = C. ee Batt. 
Chylocladia ovalis Hook. = C. ovatus 
Nitophyllum laceratum alee = N. ramosum Batt. 
Delesseria sinuosa Lam, = Phycodrys rubens Batt. 
Halopithys pinastroides Kitz. = H. incurvus Batt. 
