|Researched by||Dr Harvey Tyler-Walters & Jessica Heard||Refereed by||Admin|
|Other common names||-||Synonyms||Lucernariopsis campanulata (Lamouroux, 1815)|
Calvadosia campanulata has a funnel-shaped bell, which may grow to 4.5 cm in height. The colour is always uniform but varies between red, green or brown. The umbrella surface has a wart like appearance with groups of turquoise spots (nematocyst storage vesicles). Each of the eight arms has approximately 45 tentacles, the outer ones displaying significant basal swelling. Long, narrow gonads extend to the tip of each arm.
Calvadosia campanulata is recorded from the coasts of the Sheltand Isles, Orkney, south-west England, Isles of Scilly, south-west Ireland, Pembrokeshire, the Isle of Man, Northern Ireland, the west coast of Scotland and the Outer Hebrides, although most records occur in south-west England and the west of Scotland.
Calvadosia campanulata is only recorded from the British Isles.
Calvadosia campunulata inhabits the lower shore and shallow sublittoral of rocky coasts, commonly found on macroalgae and seagrasses.
Anchors (primary tentacles) are present in certain species of Strauromedusae (e.g. Haliclystus salpinx) between the arms. These are used by the animal to attach to the substratum and allow it to move in a cartwheeling fashion.
Miranda et al. (2010, 2016a&b) provide detailed studies of the morphology, histology and taxonomy of the Stauormedusae. Information on the ecology of Calvadoisa campanulata is limited. Information from similar species or other members of the group (Stauromedusae) was used to complete this review. Evidence relevant to sensitivity assessment was particularly lacking. Sensitivity assessments are based on proxies (e.g. the sensitivity of its preferred substratum) and expert judgement where possible. The sensitivity assessments may also vary with habitat, i.e. between macroalgal dominated hard rock and seagrass beds and the explanatory text for each assessment must be consulted.
Corbin, P.G., 1979. The seasonal abundance of four species of Stauromedusae (Coelenterata: Schyphomedusae) in Plymouth. Journal of the Marine Biological Association of the United Kingdom, 59, 385-391.
This review can be cited as:
Last Updated: 22/02/2017