Scientific Name |
English Name |
Distribution |
Max. Length (cm) |
Abietinaria abietina |
Sea fir |
Arctic, Atlantic and Paci |
|
Abietinaria alexanderi |
|
Eastern Pacific |
|
Abietinaria amphora |
|
Eastern Pacific |
|
Abietinaria anguina |
|
Eastern Pacific |
|
Abietinaria annulata |
|
Eastern Pacific |
|
Abietinaria costata |
|
Northeast Atlantic, Easte |
|
Abietinaria expansa |
|
Eastern Pacific |
|
Abietinaria filicula |
Fern hydroid |
Atlantic Ocean, Eastern P |
|
Abietinaria gigantea |
|
Eastern Pacific |
|
Abietinaria gracilis |
|
Eastern Pacific |
|
Abietinaria greenei |
Fibre-optic hydroid |
Eastern Pacific |
|
Abietinaria immersa |
|
Western Central Pacific |
|
Abietinaria inconstans |
|
Eastern Pacific |
|
Abietinaria kincaidi |
|
Atlantic and Pacific Ocea |
|
Abietinaria pacifica |
|
Eastern Pacific |
|
Abietinaria pulchra |
|
Atlantic, Pacific and Arc |
|
Abietinaria rigida |
|
Eastern Pacific |
|
Abietinaria thuiariodies |
|
Atlantic and Pacific Ocea |
|
Abietinaria traski |
|
Eastern Pacific |
|
Abietinaria turgida |
|
Atlantic, Pacific and Arc |
|
Abietinaria variabilis |
|
Pacific and Arctic Oceans |
|
Amphisbetia bispinosa |
|
Southwest Pacific |
|
Amphisbetia episcopus |
|
Southwest Pacific |
|
Amphisbetia erecta |
|
Eastern Pacific |
|
Amphisbetia fasciculata |
|
Southwest Pacific |
|
Amphisbetia furcata |
|
Eastern Pacific |
|
Amphisbetia kurilae |
|
Eastern Pacific |
|
Amphisbetia minima |
|
Southwest Pacific |
|
Amphisbetia operculata |
Wiry hydroid |
Antarctic, Southwest Atla |
|
Amphisbetia ramifera |
|
Eastern Indian Ocean |
|
Amphisbetia trispinosa |
|
Southwest Pacific |
|
Antarctoscyphus asymmetricus |
|
Antarctic Atlantic |
|
Antarctoscyphus biformis |
|
Antarctic Indian Ocean |
|
Antarctoscyphus elongatus |
|
Antarctic. |
|
Antarctoscyphus encarnae |
|
Western Antarctic |
|
Antarctoscyphus mawsoni |
|
Antarctic |
|
Antarctoscyphus spiralis |
|
Antarctic Ocean. |
|
Crateritheca zelandica |
|
Southwest Pacific |
|
Dictyocladium biseriale |
|
Western Central Pacific |
|
Dictyocladium moniliferum |
|
Southwest Pacific |
|
Dictyocladium watsonae |
|
Western Central Pacific |
|
Diphasia alternata |
|
Western Central Pacific |
|
Diphasia attenuata |
|
Western Central Pacific a |
|
Diphasia corniculata |
|
Eastern Pacific |
|
Diphasia digitalis |
|
Western Central Pacific a |
|
Diphasia fallax |
|
Atlantic and Arctic Ocean |
|
Diphasia nigra |
|
Northeast Atlantic |
|
Diphasia pinaster |
|
Northeast Atlantic |
|
Diphasia pinastrum |
Sea pine hydroid |
Atlantic Ocean and the Me |
|
Diphasia rosacea |
Lily hydroid |
Northeast Atlantic |
|
Diphasia tropica |
|
Western Atlantic. |
|
Dynamena cornicina |
|
Eastern Central Pacific a |
|
Dynamena crisioides |
Borderless hydroid |
Pacific Ocean and Western |
|
Dynamena dalmasi |
|
Western Atlantic. Tropic |
|
Dynamena dispar |
|
Eastern Pacific |
|
Dynamena disticha |
|
Atlantic, Pacific and Arc |
|
Dynamena heterodonta |
|
Indo-Pacific, Southwest A |
|
Dynamena opposita |
|
Western Central Pacific |
|
Dynamena pumila |
Sea oak |
Atlantic Ocean and the Me |
|
Dynamena quadridentata |
|
Pacific Ocean and Western |
|
Dynamena tropica |
|
Western Atlantic. |
|
Fraseroscyphus sinuosus |
|
Eastern Pacific |
|
Gonaxia amphorifera |
|
Western Central Pacific |
|
Gonaxia ampullacea |
|
Western Central Pacific |
|
Gonaxia anonyma |
|
Western Central Pacific |
|
Gonaxia bulbifera |
|
Western Central Pacific |
|
Gonaxia compacta |
|
Western Central Pacific |
|
Gonaxia complexa |
|
Western Central Pacific |
|
Gonaxia crassa |
|
Western Central Pacific |
|
Gonaxia crassicaulis |
|
Western Central Pacific |
|
Gonaxia crusgalli |
|
Western Central Pacific |
|
Gonaxia elegans |
|
Western Central Pacific |
|
Gonaxia errans |
|
Western Central Pacific |
|
Gonaxia intermedia |
|
Western Central Pacific |
|
Gonaxia pachyclados |
|
Western Central Pacific |
|
Gonaxia persimilis |
|
Western Central Pacific |
|
Gonaxia robusta |
|
Western Central Pacific |
|
Gonaxia scalariformis |
|
Western Central Pacific |
|
Gonaxia similis |
|
Western Central Pacific |
|
Gonaxia sinuosa |
|
Western Central Pacific |
|
Gonaxia stricta |
|
Western Central Pacific |
|
Hydrallmania clavaformis |
|
Western Central Pacific |
|
Hydrallmania distans |
Loose spiral hydroid |
Eastern Pacific |
|
Hydrallmania falcata |
Sickle hydroid |
Atlantic and Pacific Ocea |
|
Hydrallmania franciscana |
|
Eastern Pacific |
|
Idiellana pristis |
|
Indo-West Pacific and Wes |
|
Parascyphus repens |
|
Southwest Atlantic, South |
|
Parascyphus simplex |
|
Southwest Pacific |
|
Pericladium mirabilis |
|
Atlantic, Pacific and Arc |
|
Pericladium trilateralis |
|
Eastern Pacific |
|
Salacia bicalycula |
|
Southwest Pacific |
|
Salacia buski |
|
Southwest Pacific |
|
Salacia farquhari |
|
Southwest Pacific |
|
Salacia tetracythara |
|
Western Central Pacific |
|
Selaginopsis cedrina |
|
Eastern Pacific |
|
Selaginopsis cylindrica |
|
Eastern Pacific |
|
Selaginopsis fusca |
|
Northeast Atlantic |
|
Selaginopsis hartlaubi |
|
Eastern Pacific |
|
Selaginopsis obsoleta |
|
Eastern Pacific |
|
Selaginopsis pinaster |
|
Eastern Pacific |
|
Selaginopsis triserialis |
|
Eastern Pacific |
|
Sertularella acutidentata |
|
Western Central Pacific |
|
Sertularella albida |
|
Eastern Pacific |
|
Sertularella ampullacea |
|
Southeast Pacific |
|
Sertularella anguina |
|
Western Central Pacific |
|
Sertularella antarctica |
|
Antarctic and Southwest P |
|
Sertularella areyi |
|
Western Central Pacific a |
|
Sertularella argentinica |
Bonsai tree hydroid |
Southwest Atlantic and So |
|
Sertularella billardi |
|
Western Central Pacific |
|
Sertularella bipectinata |
|
Western Central Pacific |
|
Sertularella catena |
|
Western Central Pacific a |
|
Sertularella clarkii |
|
Eastern Pacific |
|
Sertularella complexa |
|
Eastern Pacific |
|
Sertularella conella |
|
Pacific Ocean. Subtropic |
|
Sertularella conica |
|
Western Atlantic. |
|
Sertularella costata |
|
Southeast Pacific |
|
Sertularella crassiuscula |
|
Southwest Pacific |
|
Sertularella crenulata |
|
Western Central Pacific |
|
Sertularella cylindritheca |
|
Southwest Atlantic |
|
Sertularella decipiens |
|
Eastern Indian Ocean |
|
Sertularella diaphana |
|
Indo-Pacific and Western |
|
Sertularella distans |
|
Pacific Ocean |
|
Sertularella edentula |
|
Southwest Pacific |
|
Sertularella flabella |
|
Eastern Pacific |
|
Sertularella fuegonensis |
|
Southeast Pacific |
|
Sertularella fusiformis |
|
Southwest Pacific |
|
Sertularella gayi |
|
Atlantic Ocean |
|
Sertularella geodiae |
|
Western Central Pacific |
|
Sertularella gigantea |
|
Western Atlantic |
|
Sertularella helenae |
|
Western Central Pacific |
|
Sertularella integra |
|
Southwest Pacific |
|
Sertularella intricata |
|
Western Central Pacific |
|
Sertularella jorgensis |
|
Southeast Pacific |
|
Sertularella lagena |
|
Antarctic Indian Ocean |
|
Sertularella leiocarpa |
|
Western Central Pacific |
|
Sertularella leiocarpoides |
|
Western Central Pacific |
|
Sertularella moluccana |
|
Southwest Atlantic |
|
Sertularella novaecaledoniae |
|
Western Central Pacific |
|
Sertularella parvula |
|
Western Central Atlantic |
|
Sertularella paucicostata |
|
Western Central Pacific |
|
Sertularella peculiaris |
|
Western Central Atlantic |
|
Sertularella polyzonias |
Great tooth hydroid |
Arctic, Atlantic Ocean, P |
|
Sertularella pseudocostata |
|
Western Central Pacific |
|
Sertularella quadridens |
|
Western Pacific and India |
|
Sertularella robusta |
|
Pacific Ocean |
|
Sertularella rugosa |
Snail trefoil hydroid |
Arctic, Northern Pacific |
|
Sertularella simplex |
|
Southwest Pacific |
|
Sertularella sinensis |
|
Western Central Pacific |
|
Sertularella tanneri |
|
Eastern Pacific |
|
Sertularella tenella |
|
Atlantic, Pacific and Arc |
|
Sertularella tricuspidata |
|
Canada |
|
Sertularella turgida |
Turgid garland hydroid |
Northeast Pacific. |
|
Sertularia albimaris |
|
Northeast Atlantic |
|
Sertularia argentea |
Squirrel's tail hydroid |
Arctic, Northern Atlantic |
|
Sertularia carolinensis |
|
Western Atlantic |
|
Sertularia cuperssina |
|
Northeast Atlantic |
|
Sertularia cupressina |
Sea cypress hydroid |
Northern Atlantic and the |
|
Sertularia cupressoides |
|
Northeast Atlantic |
|
Sertularia dalli |
|
Atlantic and Pacific Ocea |
|
Sertularia distans |
|
Atlantic and Pacific Ocea |
|
Sertularia elegans |
|
Eastern Pacific |
|
Sertularia fabricii |
|
Atlantic, Pacific and Arc |
|
Sertularia latiuscula |
|
Western Atlantic |
|
Sertularia ligulata |
|
Indo-Pacific and Western |
|
Sertularia loculosa |
|
Southwest Atlantic |
|
Sertularia malayensis |
|
Eastern Central Pacific |
|
Sertularia marginata |
|
Southwest Atlantic |
|
Sertularia mirabilis |
|
Arctic, Northern Atlantic |
|
Sertularia notabilis |
|
Southwest Atlantic |
|
Sertularia operculata |
|
Southwest Pacific |
|
Sertularia perpusilla |
|
Southwest Atlantic |
|
Sertularia plumosa |
|
Eastern Pacific, Northwes |
|
Sertularia plumulifera |
|
Western Atlantic |
|
Sertularia robusta |
|
Atlantic, Pacific and Arc |
|
Sertularia rugosissima |
|
Eastern Central Pacific a |
|
Sertularia schmidti |
|
Atlantic and Arctic Ocean |
|
Sertularia similis |
|
Atlantic, Pacific and Arc |
|
Sertularia stookeyi |
|
Western Central Atlantic |
|
Sertularia tenera |
|
Arctic, Atlantic and Paci |
|
Sertularia tongensis |
|
Eastern Central Pacific |
|
Sertularia turbinata |
|
Eastern Central Pacific a |
|
Sertularia unguiculata |
|
Southwest Pacific |
|
Sertularia vervoorti |
|
Southwest Atlantic |
|
Staurotheca abyssalis |
|
Antarctic Atlantic |
7.5 H |
Staurotheca affinis |
|
Antarctic Atlantic |
|
Staurotheca amphorophora |
|
Antarctic Atlantic |
38 H |
Staurotheca antarctica |
|
Circum-Antarctic. |
3 WD |
Staurotheca australis |
|
Antarctic Atlantic |
|
Staurotheca compressa |
|
Circum-Antarctic. |
13 COLD |
Staurotheca cornuta |
|
Antarctic Atlantic |
9 COLD |
Staurotheca densa |
|
Circum-Antarctic. |
7 COLD |
Staurotheca dichotoma |
|
Western Indian Ocean and |
6 COLD |
Staurotheca echinocarpa |
|
Antarctic Indian Ocean |
|
Staurotheca frigida |
|
Antarctic. |
9 COLD |
Staurotheca glomulosa |
|
Antarctic |
6 COLD |
Staurotheca jaederholmi |
|
Southwest Atlantic, South |
12 H |
Staurotheca juncea |
|
Antarctic Atlantic |
|
Staurotheca multifurcata |
|
Antarctic Atlantic |
48 H |
Staurotheca nonscripta |
|
Antarctic-Patagonian. |
9 COLD |
Staurotheca pachyclada |
|
Antarctic |
16 H |
Staurotheca plana |
|
Antarctic Atlantic |
|
Staurotheca polarsterni |
|
Antarctic. |
|
Staurotheca profunda |
|
Antarctic Atlantic |
|
Staurotheca stolonifera |
|
Western Antarctic. |
|
Staurotheca undosiparietina |
|
Antarctic Atlantic |
32 H |
Staurotheca urceolifera |
|
Antarctic Indian Ocean |
|
Staurotheca vanhoeffeni |
|
Circum-Antarctic. |
|
Staurotheca vervoorti |
|
Southwest and Antarctic A |
15 DL |
Stereotheca elongata |
|
Southwest Pacific |
|
Symplectoscyphus aggregatus |
|
Antarctic Atlantic |
|
Symplectoscyphus amphoriferus |
|
Western Atlantic |
|
Symplectoscyphus annae |
|
Circum-Antarctic. |
4.5 H |
Symplectoscyphus bathyalis |
|
Western Central Pacific a |
|
Symplectoscyphus bathypacificus |
|
Western Central Pacific |
|
Symplectoscyphus columnarius |
|
Southwest Pacific |
|
Symplectoscyphus commensalis |
|
Western Central Pacific |
|
Symplectoscyphus cumberlandicus |
|
Circum-Antarctic. |
5 H |
Symplectoscyphus curvatus |
|
Circum-Antarctic. |
|
Symplectoscyphus effusus |
|
Western Central Pacific |
|
Symplectoscyphus elegans |
|
Eastern Pacific |
|
Symplectoscyphus exochus |
|
Antarctic |
6 WD |
Symplectoscyphus filiformis |
Filigree hydroid |
Southeast Pacific |
|
Symplectoscyphus frigidus |
|
Western Antarctic. |
|
Symplectoscyphus glacialis |
|
Antarctic. |
5 WD |
Symplectoscyphus hero |
|
Antarctic Atlantic |
|
Symplectoscyphus indivisus |
|
Southwest Pacific |
|
Symplectoscyphus johnstoni |
|
Western Pacific |
|
Symplectoscyphus levinseni |
|
Eastern Pacific |
|
Symplectoscyphus liouvillei |
|
Western Antarctic-Patagon |
|
Symplectoscyphus magellanicus |
Zip hydroid |
Southwest Atlantic, South |
|
Symplectoscyphus naumovi |
|
Circum-Antarctic. |
2.5 H |
Symplectoscyphus nesioticus |
|
Antarctic Atlantic |
1.5 H |
Symplectoscyphus paulensis |
|
Southwest Pacific and Ant |
|
Symplectoscyphus pedrensis |
|
Eastern Pacific |
|
Symplectoscyphus pedunculatus |
|
Western Central Pacific |
|
Symplectoscyphus pinnatus |
|
Northwest Atlantic, Pacif |
|
Symplectoscyphus pirsa |
|
Eastern Indian Ocean |
|
Symplectoscyphus plectilis |
|
Circum-Antarctic. |
2.5 H |
Symplectoscyphus pseudocolumnarius |
|
Western Central Pacific |
|
Symplectoscyphus pygmaeus |
|
Southwest Pacific |
|
Symplectoscyphus ralphae |
|
Western Central Pacific |
|
Symplectoscyphus sinuosus |
|
Eastern Pacific |
|
Symplectoscyphus sofiae |
|
Antarctic Pacific |
7.5 H |
Symplectoscyphus subarticulatus |
|
Southwest Pacific |
|
Symplectoscyphus subdichotomus |
Bushy hydroid |
Indo-Pacific, Southwest A |
|
Symplectoscyphus tricuspidatus |
|
Arctic, Northern Atlantic |
|
Symplectoscyphus tuba |
|
Western Pacific and South |
|
Symplectoscyphus turgidus |
|
Eastern Pacific |
|
Symplectoscyphus vanhoeffeni |
|
Circum-Antarctic. |
5 WD |
Symplectoscyphus weddelli |
|
Antarctic Atlantic |
2.5 H |
Tamarisca tamarisca |
Sea tamarisk |
Mediterranean, Atlantic a |
|
Thuiaria affinis |
|
Antarctic Indian Ocean |
|
Thuiaria alba |
|
Eastern Pacific |
|
Thuiaria alternitheca |
|
Eastern Pacific |
|
Thuiaria arctica |
|
Arctic |
|
Thuiaria articulata |
Sea spleenwort |
Atlantic, Pacific and Arc |
|
Thuiaria carica |
|
Atlantic, Pacific and Arc |
|
Thuiaria desmoides |
|
Eastern Pacific |
|
Thuiaria distans |
|
Canada |
|
Thuiaria fraseri |
|
Eastern Pacific |
|
Thuiaria laxa |
|
Atlantic and Arctic Ocean |
|
Thuiaria tenera |
|
Canada |
|
Thuiaria thuja |
Bottlebrush hydroid |
Atlantic, Pacific and Arc |
|
Thyroscyphoides sympodialis |
|
Southwest Pacific |
|
Tridentata flowersi |
|
Western Atlantic |
|
Tridentata marginata |
|
Atlantic and Pacific Ocea |
|
Tridentata tumida |
|
Western Atlantic |
|
Tridentata turbinata |
|
Eastern Pacific and Weste |
|