Triskelion Triskelion A triskelion or triskele is a motif consisting of a triple spiral exhibiting rotational symmetry. The spiral design can be based on interlocking Archimedean spirals, or represent three bent human legs. Both terms are from Greek ("triskelion") or ("triskeles"), "three-legged", from prefix "τρι-" ("tri-"), "three times" + "σκέλος" ("skelos"), "leg". A triskelion is a traditional symbol of Sicily, where it is called "trinacria"; the Isle of Man, where it is known in Manx as "Tree Cassyn Vannin", and Brittany where it is known as "Triskèle". Ingushetia also has a (stylised) triskelion in its flag. The triskelion symbol appears in
Crabs of the British Isles Crabs of the British Isles Around 65 species of crab occur in the waters of the British Isles. All are marine, with the exception of the introduced Chinese mitten crab, "Eriocheir sinensis", which occurs in fresh and brackish water. They range in size from the deep-water species "Paromola cuvieri", which can reach a claw span of , to the pea crab, which is only wide and lives inside mussel shells. Several species of wild crab are the subject of crab fisheries around the coasts of the British Isles. The most important are the brown crab or edible crab, "Cancer pagurus"