Abstract
A brief summary of abnormalities among Cestodes is given.A new record of melanism in T. pisiformis is made. The pigment was deposited in the vas deferens and cirrus sac in every segment.18 specimens of tri-radiate and 3 specimens of quadri-radiate T. pisiformis are described from dogs.A single case of tri-radiate D. caninum is reported.A bibliography containing records of cestode abnormalities is appended.

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