telotroch telotroch telotroch is the free-swimming stage of members of the order sessilida. sessilida are ciliates of the subclass peritrichia. a sessile individual can turn into a motile one to migrate to a better place. vorticella sp. telotroch another definition of telotroch: a posterior tuft of cilia in larvae of some animals. see trochophore larva and hemichordates for references.