Image Sue Daly - Male Corystes cassivelaunus in the Channel Isles.
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Corystes cassivelaunus is not listed under any importance categories.
|Phylum||Arthropoda||Arthropods, joint-legged animals, e.g. insects, crustaceans & spiders|
|Class||Malacostraca||Crabs, lobsters, sand hoppers and sea slaters|
|Recorded Distribution in Britain and Ireland||A southern species recorded on many British coasts but absent from much of northern Scotland.|
|Habitat information||Typically found in burrows in the sand from the lower shore and shallow sublittoral to about 100 m.|
|Description||Corystes cassivelaunus is easily recognised by its elongate, ovoid carapace (up to 4 cm long and 3 cm wide). It is a reddish-brown to yellow in colour. The chelipeds of the male are twice the length of the carapace while those of the female are much smaller. There are 2 teeth between the eyes and the lateral margin has 4 teeth (of which the second is the largest). While buried, the crab's antennae are brought together and the setae interlock to form a respiratory tube.|
This review can be cited as follows:
Marie Skewes 2008. Corystes cassivelaunus. Masked crab. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 19/05/2013]. Available from: <http://www.marlin.ac.uk/speciesinformation.php?speciesID=3074>