Maricola with two ventral gonopores, the anterior one leading into the male atrium and the posterior pore forming the external opening of the female genital duct. Copulatory bursa absent. Ovaries located between one-third and one-half of the distance between the brain and the root of the pharynx. Very few, prepharyngeal ventral testes.
The genus contains only one species, Tiddles evelinae Marcus, 1963.