APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that is found in the coastal waters
and rockpools of south-west England. Images by David Fenwick.

Sea fir and hydroid images (Hydrozoa)
Anthoathecata (Order) > Aplanulata (Suborder)

Protohydridae (Family)

Protohydra
Protohydra leuckarti Greeff, 1870
- A Protohydrid hydrozoan or hydromedusa

Freshwater Species

Hydridae (Family)

Hydra
Hydra oligactis Pallas, 1766 - Brown Hydra
Hydra viridissima Pallas, 1766
syn. Chlorohydra viridissima - Green Hydra

Anthoathecata (Order) > Capitata (Suborder)

Candelabridae (Family)

Candelabrum
Candelabrum cocksii (Cocks, 1854)
- A Candelabrum hydroid

Cladonematidae (Family)

Cladonema
Cladonema radiatum Dujardin, 1843
- Root-arm medusa

Eleutheria
Eleutheria dichotoma de Quatrefages, 1842 - A Hydroid

Corynidae (Family)

Coryne
Coryne eximia Allman, 1859 - A Hydroid
Coryne muscoides (Linnaeus, 1761) - A Hydroid
Coryne pusilla Gaertner, 1774 - A Hydroid

Stauridiosarsia
Stauridiosarsia gemmifera (Forbes, 1848) - A Hydroid

Milleporidae (Family)

Millepora
Millepora species - A Fire coral (non-native species)

Porpitidae (Family)

Velella
Velella velella (Linnaeus, 1758)
- By-the-wind-sailor or Sallee man

Tubulariidae (Family)

Ectopleura
Ectopleura dumortierii (Van Beneden, 1844) ?
- A Tubulariid hydroid

Ectopleura larynx (Ellis & Solander, 1786)
- A Tubulariid hydroid

Tubularia
Tubularia indivisa Linnaeus, 1758 - A Tubulariid hydroid

Anthoathecata (Order) > Filifera (Suborder)

Bougainvilliidae (Family)

Bougainvillia
Bougainvillia muscus (Allman, 1863) - A Hydroid

Hydractiniidae (Family)

Clava
Clava multicornis (Forsskål, 1775)
- Club-headed hydroid or Many-horned club

Hydractinia
Hydractinia echinata (Fleming, 1828) - Snail fur

Podocoryna
Podocoryna carnea M. Sars, 1846
- Smoothspined snailfur

Pandeidae (Family)

Leuckartiara
Leuckartiara octona (Fleming, 1823) - A Pandeid hydroid

Neoturris
Neoturris pileata (Forsskål, 1775) - A Pandeid hydroid

Leptothecata (Order)

Campanulinidae (Family)

Opercularella
Opercularella lacerata (Johnston, 1847)
- A campanulinid hydroid

Dipleurosomatidae (Family)

Dipleurosoma
Dipleurosoma typicum Boeck, 1866 ?

Sertulariidae (Family)

Diphasia
Diphasia alata (Hincks, 1855) - A sertulariid hydroid

Sertularella
Sertularella polyzonias (Linnaeus, 1758)
- A sertulariid hydroid

Sertularella tenella (Alder, 1857) - A sertulariid hydroid

Sertularella species from Long Rock,
Penzance. 07.01.14 - A sertulariid hydroid

Sertularella species from Chimney Rocks,
Penzance. 05.06.16 - A sertulariid hydroid

Leptothecata (Order) > Conica (Suborder)

Aequoreidae (Family)

Aequorea
Aequorea vitrina Gosse, 1853 - A Crystal jelly

Aglaopheniidae (Family)

Aglaophenia
Aglaophenia pluma (Linnaeus, 1758) - A Sea fir

Campanulariidae (Family)

Clytia
Clytia hemisphaerica (Linnaeus, 1767)
- A Thecate hydroid

Gonothyraea
Gonothyraea loveni (Allman, 1859) ?
- A Thecate hydroid

Laomedea
Laomedea flexuosa Alder, 1857 - A Thecate hydroid

Obelia
Obelia geniculata (Linnaeus, 1758) - Kelp fir

Kirchenpaueriidae (Family)

Kirchenpaueria
Kirchenpaueria similis (Hincks, 1861) - A Sea fir
Kirchenpaueria pinnata (Linnaeus, 1758) - A Sea fir

Lafoeidae (Family)

Lafoea
Lafoea dumosa (Fleming, 1820) - A Sea fir

Laodiceidae (Family)

Laodicea
Laodicea undulata (Forbes & Goodsir, 1853) - A Sea fir

Mitrocomidae (Family)

Cosmetira
Cosmetira pilosella Forbes, 1848 - A Leptothecate hydroid

Plumulariidae (Family)

Nemertesia
Nemertesia antennina (Linnaeus, 1758) - Sea beard
Nemertesia ramosa (Lamarck, 1816)

Sertulariidae (Family)

Amphisbetia
Amphisbetia operculata (Linnaeus, 1758) - A Sea fir

Dynamena
Dynamena pumila (Linnaeus, 1758) - Sea oak coralline

Hydrallmania
Hydrallmania falcata (Linnaeus, 1758) - A Sea fir

Siphonophorae (Order)

Agalmatidae (Family)

Nanomia
Nanomia cara Agassiz, 1865
- A Siphonophore (Newlyn 17.08.15.)

Nanomia cara Agassiz, 1865
- A Siphonophore (Penzance 31.07.15.)

Diphyidae (Family)

Muggiaea
Muggiaea atlantica Cunningham, 1892 ?
- A Diphyid siphonophore

Physaliidae (Family)

Physalia
Physalia physalis (Linnaeus, 1758)
- Portuguese man-of-war

Trachymedusae (Order)

Rhopalonematidae (Family)

Aglantha
Aglantha digitale (O. F. Müller, 1776) - Pink helmet ?

Sea Firs (Hydroids) to Identify

Click here for images of Scyphozoa and Staurozoa

Recommended places to visit to see Hydroids -
Much dependant on species but try rockpools on eastern side of Par Beach and Spit Point Par, Cornwall; Carlyon Beach for shells with snail fur; Plymouth Sound and Tamar Estuaries for Sea Firs; and all coasts after summer and winter storms for mass strandings of Velella.

European Names - Sea Fans, Facherkollaren, Zeewaaiers, Gorgones vraies, Abanicos de mar, Cnidarians, Nesseltiere, Neteldieren, Cnidaires, Cnidarios, Cnidari.

Sea fir hydroid Hydrozoa images uk