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Hydfrallmania falcata.
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Gonothyraea tenuis Clark.?.
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Obelia gelatinosa (Pallas). A.Portion of fascicled stem....
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Eutima mira (McCr..
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Oceania languida.
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Obelia flabellata Hincks.
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Hydrallmania falcata (Linn.). A.Portion of Branch, side view. B.Gonanglum.
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Staurostoma laciniata. After L.Agassiz.
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Thuiaria capressina (Linn.) A.Gonangla.
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Eutima mira.
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Obelia longissima.
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Halecium gracile Verrill. A.Hydrophores (enlarged).
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Sertularia complexa Clarke.
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Eucheilota duodecimalis A. Ag. A.Lateral view. B.Oral view.
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Obelia longissima Pallas. A.Outline of aperture of hydrotheca.
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Sertularia argentea.
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Eucheilota duodecimalis.
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Calycella syringa (Linn). A.Hydrotheca.....
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Thuiaria argentea (Ell. & Sol.). A.Gonanglum.
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Rhegmatodes tenuis.
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Orchistoma tentaculata. After Mayer.
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Rhegmatodes tenuis A. Ag..
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Orchistoma tentaculata Mayer. A.Aboral view. B.Lateral view.
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Rhegmatodes tenus A., Oral view of Center of Disk.