A new species of terrestrial planarian of the genus Notogynaphallia Ogren & Kawakatsu (Platyhelminthes, Tricladida, Terricola) from south Brazil and some comments on the genus

A new species of Notogynaphallia Ogren & Kawakatsu, 1990, from Southern Brazil, is described. Notogynaphallia ceciliae sp. nov. has an elongated body with parallel margins and five dorsal dark longitudinal stripes on a yellowish ground. It possess branched efferent ducts, each branch opening separately into the anterior and median thirds of the long prostatic vesicle. Comparative commentaries on the most important characters of the external and internal morphology of the 23 species of the genus are also presented, so delimiting smaller inside groups.