Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 850
l.The Medusa? of the genus Syncoryne (as now restricted) have theform named Sarsia in honour of the Swedish naturalist Sars. Theirnormal character is that of free swimmers ; but Agassiz ascertainedthat in some cases towards theend of the breeding season thesexual zooids remain fixed, andmature… … mode in which the gonozooidsare produced in the commonHydra, as already described, andthat of Syncoryne. In Tubu-laria the gonozooids, thoughjDeruianently attached, are fur-nished with swimming bells,having four tubercles repre-senting marginal tentacles. Acommon and interesting species,Tubularia…
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