Pasipha paucilineata is a species of land planarian belonging to the subfamily Geoplaninae.

The dorsum is a dark brown or black color, with a greyish stripe running down the middle.

The forked, tubular shape of the prostatic vesicle's proximal portion and its lateral displacement distinguish it from other members of Pasipha.

[2] The specific epithet is derived from the Latin words paucus and linea, literally meaning "minimal stripe".

[2] P. paucilineata is only known to be found in the municipality of Portão in Rio Grande do Sul, Brazil.