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Taxon
Clytia linearis (Thorneley, 1900)
Nomenclature
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Family: CampanulariidaeGenus: Clytia
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Synonyms: 14
SUMMARY
Hydrorhiza replant on substrate. Single hydrothecae and erect stems to 10 mm given off irregularly from hydrorhiza; stems monosiphonic, subsympodially branched; stem and branch internodes long, smooth , nodes a series of annulations.
Hydrotheca distal on internode, one, sometimes two on internode, pedicel short, annulated proximally and distally or completely throughout; hydrotheca slender, deeply campanulate, expanding smoothly to margin, diaphragm distinct, transverse, in empty hydrothecae marked by a ring of thorn-shaped desmocytes pointing into hydrotheca. Margin denticulate with 10- 12 long, sharp cusps separated by deep embayments; perisarc thinning through hydrotheca to become almost invisible at margin.
Hydranth with 14 - 16 tentacles.
Gonotheca borne on an annulated pedicel in fork of stem beside a hydrothecal pedicel; gonotheca long, obconical, distally truncate, perisarc thin, enclosing up to eight developing medusae, distal end of gonotheca closed by a thin sheet of tissue; mature medusa (at point of release) with 14 tentacles and inverted exumbrella.
Colour: white.