syndendriumn.
/sɪnˈdɛndrɪəm/ Zoology.
The thick flat quadrate disc suspended from the umbrella by the dendrostyles in rhizostomous hydrozoans.
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the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Scyphozoa > order Discomedusae > genus Rhizostoma > disc on umbrella of rhizostomous hydrozoan
syndendrium1859
1859 T. H. Huxley Oceanic Hydrozoa i. 18 In the Rhizostomidæ a complex tree-like mass..is suspended from the middle of the umbrella... The main trunks of the dependent polypiferous tree..unite above into a thick flat quadrate disc, the syndendrium, which is suspended by..the dendrostyles.
This entry has not yet been fully updated (first published 1919; most recently modified version published online June 2018).
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