APHOTOMARINE
An Educational Photographic Resource and Stock Image Library
of the Sea, Maritime Environment, Marine and Rockpool Life in the
Coastal Waters of South-West England by David Fenwick.
Haliclystus octoradiatus - A Stalked Jellyfish (Staurozoa Images)
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Stalked Jellyfish
Haliclystus octoradiatus
- on Corallina / middleshore 1
Haliclystus octoradiatus
- on Corallina / middleshore 1
Stalked Jellyfish
Haliclystus octoradiatus
- on Corallina / middleshore 2
Stalked Jellyfish
Haliclystus octoradiatus
- on Corallina / middleshore 3
Images above taken of species on Coral Weed (Corallina officinalis), in a shallow middleshore rockpool next to Albert Pier, Penzance, Cornwall, 14.11.11.
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass / lowershore 1
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass / lowershore 2
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass / lowershore 3
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass / lowershore 4
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass / lowershore 5
Stalked Jellyfish
Haliclystus octoradiatus
- on Cladostephus 1
Images above taken on tide covered lowershore, on Cladostephus spongiosus and on Zostera marina. 0.9m low tide (Newlyn); at Long Rock, near Penzance, Cornwall. 30.10.11. SW4980830930 and SW4979330927.
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass lowershore pool 1
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass lowershore pool 2
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass lowershore pool 3
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass lowershore pool 4
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass lowershore pool 5
Stalked Jellyfish
Haliclystus octoradiatus
- on eelgrass lowershore pool 6
Images above taken in a lowershore pool fringed with eelgrass on an extremely low tide at Long Rock, near Penzance, Cornwall. 17.04.11. SW4983330910. The images above are of the same animal.
All images verified as Haliclystus octoradiatus by Dr. Allen Collins, who I must thank here.
The species differes from H. auricula in that it has white nematocyst clusters in both perradii and interradii; large globular, knob shaped anchors; 10–70 gonadal sacs in each gonad; with 30–120 secondary tentacles in each tentacle cluster. Ref: Haliclystus californiensis, a “new” species of stauromedusa (Cnidaria: Staurozoa) from the northeast Pacific, with a key to the species of Haliclystus by AMANDA S. KAHN, GEORGE I. MATSUMOTO, YAYOI M. HIRANO & ALLEN G. COLLINS.
The following stalked jellyfish found in 2009 is also Haliclystus octoradiatus.
Stalked Jellyfish
Haliclystus octoradiatus
- in rockpool on seaweed 1
Stalked Jellyfish
Haliclystus octoradiatus
- in rockpool on seaweed 2
Stalked Jellyfish
Haliclystus octoradiatus
- in rockpool / close-up 1
Images taken in a small lowershore rockpool near the rock at Crinnis Beach, Carlyon Bay, St. Austell, Cornwall. 29.05.09.
A video clip of Haliclystus octoradiatus can be found at
A-P-H-O-T-O Wildlife and Nature Video Clips.
Haliclystus octoradiatus is under recorded and records of it will be included with Haliclystus auricula from which the species has been separated. Haliclystus auricula lacks white nematocyst clusters. Ref: A review of a supposedly circurnboreal species of stauromedusa, Haliclystus auricula (Rathke, 1806) by Y.M. Hirano. 1996.
Records of this species and of all stalked jellyfish species should be reported to Marlin.
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