Halicreatidae
| Halicreatidae | ||||||||
|---|---|---|---|---|---|---|---|---|
Botrynema ellinorae |
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| Systematics | ||||||||
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| Scientific name | ||||||||
| Halicreatidae | ||||||||
| Fewkes , 1886 |
The Halicreatidae are a jellyfish - Family from the order of trachymedusae .
features
Halicreatidae have (usually eight) wide radial canals, a circular manubrium and a circular mouth with no discernible lips. At the edge there are numerous tentacles of different sizes, but of the same structure, the part of which is turned towards the body is movable, the spike-like end piece stiffens. Club-shaped sensory organs also sit on the edge.
distribution
The majority of the species contained can be found in all oceans, only Botrynema ellinorae is restricted in its distribution to arctic waters.
Systematics
The systematics given here follows the information in the Hydrozoa Directory .
The family contains five to six genera with nine or ten species. Bouillon et al. (2006) list the following genera and species
-
Botrynema Browne, 1908
- Botrynema brucei Browne, 1908
- Botrynema ellinorae (Hartlaub, 1909)
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Halicreas Fewkes, 1882
- Halicreas minimum Fewkes, 1882
- Halicreas papillosum Vanhöffen, 1902
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Haliscera Vanhöffen, 1902
- Haliscera alba Vanhöffen, 1902
- Haliscera bigelowi Kramp, 1947
- Haliscera conica Vanhöffen, 1902
- Haliscera racovitzae (Maas, 1906)
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Halitrephes Bigelow, 1909
- Halitrephes maasi Bigelow, 1909
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Varitentacula He Zhen-Wu, 1980
- Varitentaculata yantaiensis He Zhen-Wu, 1980
The World Hydrozoa Directory also lists
-
Homoeonema Browne, 1903
- Homoeonema platygonum Browne, 1903
swell
literature
- Jean Bouillon, Cinzia Gravili, Francesc Pagès, Josep-Maria Gili and Fernando Boero: An introduction to Hydrozoa. Mémoires du Muséum national d 'Histoire naturelle, 194: 1-591, Publications Scientifiques du Muséum, Paris 2006 ISBN 978-2-85653-580-6
- FS Russell: Trachymedusae. , in: Fich. Ident. Zooplancton, Vol. 164, 1980, pp. 3-4, PDF Online
Individual evidence
- ^ PL Kramp: Synopsis of the Medusae of the World. , in: Journal of the Marine Biological Association of the United Kingdom, 1961, Vol. 40, pp. 243-248, PDF Online ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Peter Schuchert, The Hydrozoa Directory , accessed October 1, 2007
- ^ World Hydrozoa Database - Halicreatidae
