Each segment of their body is a self contained unit called a proglottid and they soak up the nutrients they need through their skin.    From Wordnik.com.  [Horsetalk.co.nz Headlines] Reference

Cestodes are hermaphroditic with a complete reproductive system on each proglottid.    From Wordnik.com.  [Platyhelminthes] Reference

Each proglottid contains one set of male reproductive organs and one set of female reproductive organs.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

(I’m sort of embarrassed for not knowing this literary term). proglottidean From proglottid, each segment in the strobila of a tapeworm containing a complete, sexually mature reproductive system.    From Wordnik.com.  [More Vocabulary from Eco « So Many Books] Reference