Plumularioidea

Plumularioidea
Aglaophenia species (Aglaopheniidae)
Scientific classification
Kingdom:	Animalia
Phylum:	Cnidaria
Class:	Hydrozoa
Order:	Leptothecata
Superfamily:	Plumularioidea McCrady, 1859

Plumularioidea is a superfamily of hydrozoans in the order Leptothecata.

This superfamily unites about 45 genera in the following families:^[1]

• Aglaopheniidae Marktanner-Turneretscher, 1890
• Halopterididae Millard, 1962
• Kirchenpaueriidae Stechow, 1921
• Phylactothecidae Stechow, 1921
• Plumaleciidae Choong & Calder, 2018
• Plumulariidae McCrady, 1859
• Schizotrichidae Peña Cantero, Sentandreu & Latorre, 2010

These thecate hydroids grow in erect colonies, branched in some species but unbranched in others. Each branch may bear a single or several animals. In the latter case the hydrothecae are arranged in a neat single file; in either case they are not set on stalks but grow from the branches directly. The hydrothecase have a cusped or even rim and instead of a diaphragm a well-defined floor with a that is usually off-center. The hydranths have a conical hypostome and a single whorl of thread-like tentacles. The gastrodermis contains areas with and others without digestive function. are always present and usually protected by . The gonotheca are borne singly or in groups, they may or may not have protective or appendages. The gonophores are usually fixed sporosacs, more rarely they are rather reduced medusoids.^[2]

Footnotes[]

References[]

• Schuchert, Peter (2008): The Hydrozoa Directory - Suborder Conica Broch, 1910. Retrieved 2008-JUL-08.

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