The Crustacea of the Insect Bed (latest Eocene) of the Isle of Wight, England, including the first spinicaudatan (clam shrimp) from the British Cenozoic

The crustacean fauna of the Insect Bed (late Eocene), Isle of Wight is reviewed. The fauna comprises the branchiopodBranchipodites vectensisWoodward, 1879, ostracodPotamocypris brodieiJones and Sherborn, 1889, and isopodEosphaeroma margarum(Desmarest, 1822). In addition a new clam shrimp (Crustacea: Diplostraca: Spinicaudata) is described and namedParaleptestheria mitchellisp. nov. This is the first record of the genus outside China and the first ‘conchostracan' to be described from the European Cenozoic.