hydranthn.
/ˈhʌɪdranθ/ Zoology.
One of the non-sexual zooids, typically nutritive in function, occurring in colonial Hydrozoa, usually on the branches of the cœnosarc (like flowers on a plant). Sometimes extended to any hydroid (free or colonial).
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the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of order Hydroidea
hydroid1865
hydranth1874
hydroidean1888
the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > nutritive
hydranth1874
1874 J. Lubbock Orig. & Metamorphoses Insects iii. 49 Every branchlet crowned by its graceful hydranth.
1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 128 In an early stage of its existence every hydrozoon is represented by a single hydranth.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 245 The hydrosome [of Sertularia] consists of a number of hydranths or nutritive zooids collectively forming the trophosome and connected to one another by a branching cœnosarc.
This entry has not yet been fully updated (first published 1899; most recently modified version published online June 2018).
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