The Medusae of the British Isles, Volume 1

adradial canals adult Agassiz appear Atolla atriches Aurelia aurita basal base Bougainvillia British brown bulbs cavity cells Claus Clyde sea area coast colour coronal groove coronal muscle Cyanea capillata Delap described diameter disk distal Distribution includes ectoderm Edwards eggs eight marginal endoderm ephyra euryteles exumbrellar four interradial Four perradial gastric filaments gastric septa gastrovascular sinus Genus gonads Haeckel holotrichous hydroid jelly Kramp Kühl lamarckii M. E. Thiel manubrium marginal lappets marginal sense organs marginal tentacles medusa medusa buds mesogloea mouth muscle folds Nausithoë nematocyst occur ocellus oral arms pedalia Pelagia noctiluca Periphylla Péron & Lesueur pigmented planula polyp Port Erin pulsation radial canals radial septa reared recorded Repelin Rhizostoma rhopalia rhopalium ring-canal Russell scyphistoma Scyphomedusae sensory pit Solway Firth species specimens statocyst Stiasny stolon stomach strobilation subumbrellar surface temperature tentacular terminal clubs Text-fig thickened umbrella margin Vanhöffen Vannucci Werner Widersten wyvillei