Halicreas minimum
| Halicreas minimum | ||||||||||||
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Halicreas minimum |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Halicreas | ||||||||||||
| Fewkes , 1882 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Halicreas minimum | ||||||||||||
| Fewkes, 1882 |
Halicreas minimum is a jellyfish - kind from the family of Halicreatidae and the only species of its genus .
features
Halicreas minimum has a diameter of 30 to 40 millimeters and a wide annular canal as well as eight broad, ribbon-shaped radial canals, which are covered by the flattened gonads for almost their entire length . The up to 64 edge tentacles are in a continuous row. In each octant (the eight body sections) there are three to four statocysts as equilibrium organs .
The screen consists of a thick gelatinous layer, is disc-shaped and elongated at the tip to form a conical extension that is variable in size. Above the edge, the screen is covered in each octant with a group of gelatinous warts (papillae). The mouth is a wide, circular opening.
distribution
Halicreas minimum can be found in all oceans, preferably in warmer waters.
swell
- Jean Bouillon, Ferdinando Boero: Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species. In: Thalassia Salentina: Vol. 24, 2000, pp. 65-66 ( PDF ).
- FS Russell: Trachymedusae. In: Fich. Ident. Zooplancton. Vol. 164, 1980, pp. 3-4 ( PDF Online ).
- 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 ).