Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Environment: milieu / climate zone / depth range / distribution range Ecologie

Demersaal; diepteverspreiding 150 - 150 m (Ref. 7416). Polar

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Introducties

Antarctic Atlantic: Antarctica.

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm

Korte beschrijving Morfologie

Two fragments, larger 1 cm high, basally with a few stolons, probably indicating polysiphony in colony. Main fragment with 40 hydrothecae and giving rise to two secondary branches provided with five and 12 hydrothecae. Both second-order branches separated by ten hydrothecae and originating laterally at hydrothecal base on the same side of main fragment, though branches probably having spiral arrangement. Hydrothecae alternately arranged in one plane, set close together; hydrothecal distal part almost reaching basal part of following hydrotheca and approximately middle of adcauline wall of alternate hydrotheca. Branch internodes sometimes indistinct. Hydrotheca almost cylindrical and adnate to internode for approximately two thirds of its adcauline length. Free portion of adcauline hydrothecal wall straight or slightly convex. Abcauline hydrothecal wall straight or with a slight basal swelling. Hydrothecal aperture directed upwards and provided with three blunt cusps separated by deep embayments.

Depth based on occurrence record; to be replaced with better reference.

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Members of the order Leptothecata include L-form hydroids. Life cycle: The zygote develops into planula and later into polyp then into free-swimming medusa.

Voornaamste referentie Referenties | Coördinator | Medewerkers

Peña Cantero, A.L., A. Svoboda and W. Vervoort. 2002. (Ref. 7416)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet beoordeeld

Status bij CITES (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

Harmless

Gebruik door de mens

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Landen
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Voorkomen
Introducties
Stocks
Ecologie
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voedselitems

Populaire namen
Synoniemen
Predators
Voortplanting
Geslachtsrijpheid
Kuitschieten
Fecundity
Eieren
Ontwikkeling van de eieren

Leeftijd/Grootte
Groei
Lengte-gewicht parameters
Lengte-lengte parameters
Morfologie
Larven
Abundantie

Referenties
Mass conversion

Medewerkers
Illustraties

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Symplectoscyphus aggregatus (Jäderholm, 1917)