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Home » Taxon » Cnidaria » Hydrozoa » Hydroidolina » Leptothecata » Phialellidae » Phialella » Phialella quadrata - (Forbes, 1848)
Taxon
Phialella quadrata (Forbes, 1848)
Nomenclature
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Family: PhialellidaeGenus: Phialella
Species:
Phialella quadrata (Forbes, 1848)
Usage:
valid
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Synonyms: 8
SUMMARY
The hydrothecal diaphragm of the hydroid is usually transverse, but in some hydrothecae it is oblique. The diaphragm forms the junction between the pedicel and hydrotheca and is a point of weakness at which hydrothecae often break away.