Cestodes from Bermuda fishes and an account ofAcompsocephalum tortum(Linton, 1905) gen.nov. from the lizard fishSynodus intermedius(Agassiz)

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Abstract
Of 414 Bermuda fishes belonging to 58 species 69 belonging to 20 species were infested with adult or larval cestodes. Five species of adult and five species of larval cestodes were recovered. There are 18 new host records and seven new records for Bermuda. Four of the adult cestodes were found in the cub shark Carcharinus platyodon (Poey). Larval cestodes were found in 66 individuals of 18 species of fishes mainly groupers and rock fishes from the outer reefs and deep water where sharks abound. It is suggested that the restriction of cestodes of Bermuda fishes is due to the isolation of the fishes into the deep water population of the outer reefs and beyond and the shallow water population of the inner reefs.Acompsocephalum tortum (Linton) was the only cestode from a teleost Synodus intermedius (Agassiz). It has been included in a new family in the Pseudophyllidea but has affinities, also, with the Spathebothridea. It is described and its significance relative to the evolution of the strobilate cestodes is discussed.