Crabs of the British Isles (29,193 t), various swimming crabs (3,180 t), the spider crab "Maja squinado" (1,565 t), the shore crab or green crab "Carcinus maenas" (553 t) and the velvet crab "Necora puber" (193 t). Around 77% of the catch is landed in the United Kingdom, 19% in Ireland, 4% in the Channel Islands, and 1% in the Isle of Man. 62 species have been directly observed in the waters of the British Isles: Three deep-water species have also been recorded near the British Isles, and are likely to occur in the area. These are: Crabs of the British Isles Around 65 species
Fauna of the Isles of Scilly in the order used by Harris and Yalden (2008) "Mammals of the British Isles Handbook") Fauna of the Isles of Scilly The Isles of Scilly is an archipelago off Land's End, Cornwall. Little of the fauna on, above or in the seas surrounding the isles was described prior to the 19th century, when birds and fish started to be described. Most records of other animals date from the 20th century onwards. There are few pre-19th century records for animals. William Borlase published "The Natural History of Cornwall" in 1758, commenting on the number of rabbits, and Jonathan Couch's "A Cornish