Other species among native athecate hydroids
55 native species with no plant ties on record, by observations.
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By-the-wind Sailor
Velella velella
23,267 observations
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Blue Button
Porpita porpita
5,071 observations
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Christmas Tree Hydroid
Pennaria disticha
2,662 observations
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Branching Fire Coral
Millepora alcicornis
1,817 observations
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Red-eye Medusa
Polyorchis penicillatus
1,358 observations
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Blade Fire Coral
Millepora complanata
1,199 observations
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Pink-mouth Hydroid
Ectopleura marina
672 observations
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Green Hydra
Hydra viridissima
563 observations
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Giant Bell Jelly
Scrippsia pacifica
555 observations
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Tubular Hydroid
Ectopleura crocea
524 observations
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Snail Fur
Hydractinia echinata
441 observations
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Hydroid
Proboscidactyla flavicirrata
437 observations
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Leuckartiara longicalcar
336 observations
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Purple Encrusting Hydrocoral
Stylantheca papillosa
277 observations
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Constricted Jellyfish
Catablema vesicarium
218 observations
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Neoturris breviconis
214 observations
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Oaten Pipes Hydroid
Tubularia indivisa
189 observations
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Miller Hydractinia
Schuchertinia milleri
184 observations
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Hanging Stomach Jelly
Stomotoca atra
179 observations
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California Hydrocoral
Stylaster californicus
176 observations
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Brown Hydra
Hydra oligactis
170 observations
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Polyorchis haplus
160 observations
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Fairy Palm Hydroid
Corymorpha palma
148 observations
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Clapper Hydroid
Sarsia tubulosa
93 observations
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Club Hydroid
Clava multicornis
91 observations
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Orange Hydroid
Garveia annulata
86 observations
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Trichydra pudica
75 observations
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California Stickhydroid
Eudendrium californicum
65 observations
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Rathkea octopunctata
65 observations
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Common Hydra
Hydra vulgaris
62 observations
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Jersey Hydra
Hydra hymanae
56 observations
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Aquarium Medusa
Cladonema radiatum
51 observations
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Geomackiea zephyrolata
47 observations
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Hybocodon prolifer
44 observations
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Halimedusa typus
42 observations
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Box Fire Coral
Millepora squarrosa
37 observations
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Sarsia princeps
36 observations
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Cladonema californicum
34 observations
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American Brackish Water Medusa
Nemopsis bachei
29 observations
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Euphysa flammea
27 observations
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Bougainvillia multitentaculata
26 observations
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Coryne eximia
22 observations
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Turritopsis nutricula
19 observations
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Rhizogeton nudus
19 observations
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Hydrocoryne bodegensis
14 observations
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Pink Branching Lace Hydrocoral
Stylaster verrillii
12 observations
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Annatiara affinis
11 observations
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Hydractinia symbiolongicarpus
9 observations
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Stylaster parageus
8 observations
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Candelabrum fritchmanii
7 observations