Bolaños, D. MarcelaQuiroga, Sigmer Y.Litvaitis, Marian K.2006FIGURE 4 in A new acotylean flatworm, Armatoplana colombiana n. sp. (Platyhelminthes: Polycladida: Stylochoplanidae) from the Caribbean coast of Colombia, South America10.5281/zenodo.2645288FIGURE 4. Sagittal section with nuchal tentacles (arrows). Scale = 1 mm.ZOOTAXA1162