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153 athecate hydroids species
Velella velella
Polyorchis penicillatus
Proboscidactyla flavicirrata
Stomotoca atra
Leuckartiara longicalcar
Neoturris breviconis
Ectopleura marina
Stylantheca papillosa
Catablema vesicarium
Hydra viridissima
Trichydra pudica
Ectopleura crocea
Clava multicornis
Schuchertinia milleri
Sarsia princeps
Similiclava nivea
Garveia annulata
Hybocodon prolifer
Stylaster verrillii
Rathkea octopunctata
Geomackiea zephyrolata
Halimedusa typus
Euphysa flammea
Stylaster parageus
Hydra oligactis
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