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EISIG, H. Der Nebendarm der Capitelliden und seine Homologa. Zool. 

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EISIG, H. Ueber das Vorkommen eines schwimmblasenahnlichen Organs bei 

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EISIG, H. Sur les glandes hermaphrodites de VHesione sicula. (Abstr.) Arch, 

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ETHERIDGE, E., JUN. Palseontological Notes. (Spirorbis and Hippothoa (?) 

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ETHERIDGE, E., JON. British Carboniferous Tubicolar Annelides. Geol. Mag. 

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DE FILIPPI, FILIPPO. Armandia, nuovo genere di Annelidi nel Mediterraneo. 

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