Cratera nigrimarginata sp. n., holotype, 27 dorsal eye, horizontal section 28 anterior region of body, transverse section 29–32 pre-pharyngeal region, transverse sections, body margin (30), dorsal portion (31), ventral portion (32) 33 pharynx, sagittal section 34 ovary, sagittal section.

  Part of: Rossi I, Leal-Zanchet A (2017) Three new species of Cratera Carbayo et al., 2013 from Araucaria forests with a key to species of the genus (Platyhelminthes, Continenticola). ZooKeys 643: 1-32.