Choeradoplana onae is a species of land planarian belonging to the subfamily Geoplaninae.

The head, or cephalic region, is distinguished by a rolled up and dilated "neck" with the ventral surface facing outwards, with glandular cushions.

The rolled up front tip fades into a red-orange color, both dorsally and ventrally.

[2] It is distinguished from other members of Choeradoplana by its ivory color and brown band, having a dish-shaped portion of the extrabulbar region of the prostatic vesicle, a copulatory apparatus that's 3.8 times longer than its height, and a male atrium with four to six main folds.

[2] The specific epithet, onae, was derived from an affectionate nickname given to Marta Álvarez-Presas of the University of Bristol; the species name was given to honor her "contributions to understanding the systematics of free-living flatworms".