CBDSTACEA OBSERVED IN PURBECK. '57 



List of StcUked-eyed Crustacea hitherto observed in the 

 Isle ofPurhech. 



The same remarks that I made at the commencement of the 

 List of Purbeck Fishes will equally apply here. This list is 

 not more perfect than that one, and from the same causes. 



The names and classification are taken from Professor Bell's 

 "History of British Stalked-Eyed Crustacea." 



I have taken all except those marked with an asterisk, myself; 

 of these, two were obtained by Professor Bell, and for the notices 

 of the other three, I have to thank the Rev. J. M. Colson. 



I. Stalked-eyed Crustaceans having five pairs of thoracic 

 extremities, and the gills enclosed; with short tails. 



( Decapoda Brachyura, ) 



Long-legged Spider-Crnb. Stenorynchus PhaUtngium, 

 Bell, 2. 



Common. 



Slender Spider-Crab. Stenorynchus tenuirostris. Bell, 6. 

 A few, generally in grass banks. 



Four-horned Spider-Crab. Pisa tetraodon. Bell, 22. 



Common, generally half concealed by masses of small 

 fuci growing on the carapace. 



