Species in the family Kenkiidae are characterized by a thickened marginal epidermis, i.e., the epidermis of the body margins have larger cells provided with bigger
rhabdites than the epidermis of the rest of the body. Kenkiidae species have the testicles situated anterior to the pharynx, feature also common in the
Dugesiidae and
Planariidae. They have an anterior adhesive organ, which is also found in the family
Dendrocoelidae. The inner muscles of the pharynx are divided in two layers. Kenkiidae species are not pigmented and they are usually blind. == Phylogeny ==