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V 



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12. Coelenterata. 



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London, 1887. P. 3. p. 412. 



Nußbaum, M., Natural History oî Hydra. Abstr. in: Journ. R. Microsc. Soc. 

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Fewkes, Walt. J., New Rhizostomatous Medusa [Nectopilema], Abstr. in: Journ. 

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13. Echinodermata. 



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