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Symplectoscyphus - Вид в
Sertulariidae - - Классификация -
- Sertulariidae
- Leptothecata
- Hydrozoa
- Chordata
- Animalia
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Symplectoscyphus weddelli Peña Cantero, Svoboda & Vervoort, 2002
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Изображение на Google |
No photo available for this species.No drawings available for Sertulariidae.
Изображение на Google |
No photo available for this species.
Классификация / Names народные названия | синонимы | CoL | ITIS | WoRMS
Hydrozoa | Leptothecata | Sertulariidae
Environment: milieu / climate zone / пределы глубины / distribution range экология
; пределы глубины 119 - 390 m (ссылка 7416). Polar
Distribution страны | регионы FAO | Ecosystems | места находок | интродукции
Antarctic Atlantic: Antarctica.
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm ? range ? - ? cm Max length : 2.5 cm H самец/пол неопределен; (ссылка 7416)
Краткое описание морфология
Colonies with monosiphonic stems up to 2.5 cm high, arising from stolonal hydrorhiza. Branching irregular and in several planes. Branches originating laterally at hydrothecal base; plane formed by hydrothecae of lower-order branch perpendicular to that formed by hydrothecae of previous branch. Occasionally branches becoming anastomosing stolons distally. Stems divided into more or less straight internodes with oblique nodes sloping
in alternate directions; one hydrotheca per internode. Hydrothecae abcaudally directed, with indistinct inflexion point where the adcauline wall becomes free. Adcauline hydrothecal wall adnate to internode for approximately half its length, though usually adnate part slightly longer than free portion. Free part of adcauline hydrothecal wall straight or slightly convex. Abcauline
hydrothecal wall slightly concave. Cusps of hydrothecal aperture sharp and separated by deep embayments. Rim of hydrothecal aperture with frequent renovations. Gonothecae ovoid, inserting at hydrothecal base. Gonothecal walls spirally folded, forming a frill with eight or nine turns. Gonotheca distally with a long, funnel-shaped neck bearing the gonothecal aperture.
Known at depths of 119 to 390 m on muddy and rocky bottoms. Growing on uncalcified Bryozoa, polychaete tubes and Hydrozoa. It is used as substratum by other hydroids (Ref. 7416).
Life cycle and mating behavior половая зрелость | размножение | нерест | Eggs | Fecundity | Larvae
Fertile colonies were collected in January and February.
Основная ссылка
ссылки | координатор | соавторы
Peña Cantero, A.L., A. Svoboda and W. Vervoort 2002 Species of Stymplectoscyphus Marktanner-Turneretscher, 1980 (Cnidaria; Hydrozoa: Sertulariidae) from recent Antarctic expeditions with R.V. Polarsten, with the description of four new species. Journal of Natural History 36:1509-1568. (ссылка 7416)
Статус Красного Списка МСОП
(ссылка 130435: Version 2025-1)
Статус СИТЕС (ссылка 108899)
Not Evaluated
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Harmless
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