An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

Parasitic algae (Seaweed images)
Eurhodophytina (Subdivision) > Florideophyceae (Class) > Rhodymeniophycidae (Subclass) > Ceramiales (Order)

Delesseriaceae (Family) > Phycodryoideae (Subfamily) > Cryptopleureae (Tribe)

Gonimophyllum buffhamii Batters, 1892
- A parasitic red algae

Rhodomelaceae (Family)

Choreocolax polysiphoniae Reinsch, 1875
- A red algae parasitic on Vertebrata lanosa

Eurhodophytina (Subdivision) > Florideophyceae (Class) > Rhodymeniophycidae (Subclass) > Gigartinales (Order)

Kallymeniaceae (Family)

Callocolax neglectus F.Schmitz ex Batters, 1895
- A red algal parasite of Callophyllis laciniata

Pterocladiophilaceae (Family)

Gelidiocolax margaritoides (M.T.Martin & M.A.Pocock)
K.-C.Fan & Papenfuss, 1959 - A red algae parasitic
on Gelidium

Holmsella pachyderma (Reinsch) Sturch, 1926
- A red algal parasite of Gracilaria and Gracilariopsis

Eurhodophytina (Subdivision) > Florideophyceae (Class) > Rhodymeniophycidae (Subclass) > Palmariales (Order)

Rhodophysemataceae (Family)

Rhodophysema georgei Batters, 1900
- An epiphyte of Eel-grass, Zostera marina

Eurhodophytina (Subdivision) > Florideophyceae (Class) > Rhodymeniophycidae (Subclass) > Rhodymeniales (Order)

Rhodymeniaceae (Family)

Rhodymeniocolax Setchell, 1923
- A red algae parasitic of Rhodymenia sp.


Many thanks to Professor Michael Guiry for his help in identifying some of the seaweeds featured on this page.
Michael Guiry's Seaweed Website


Parasitic algae UK Rhodophyta Seaweed images