This dataset contains the digitized treatments in Plazi based on the original journal article Jie, Wei-Ban, Kuo, Shih-Chieh, Mok, Hin-Kiu (2014): Re-description of Thysanozoon nigropapillosum (Polycladida: Pseudocerotidae) from the South China Sea, with observations on a novel pre-copulatory structure, sexual behaviour and diet. Raffles Bulletin of Zoology 62: 764-770, DOI: 10.5281/zenodo.5356104

Abstract. Thysanozoon nigropapillosum (Hyman, 1959) is a marine polyclad flatworm found in the central Pacific. We believe that Hyman’s original description of this species in having a yellow body margin and white papilla tips was in error, and we re-described its color patterns as having white body margin and yellow-tipped papillae based on fresh specimens collected in Taiwan. Dense rhabdites present on the tips of its surface papillae might serve to prevent dermal impregnation, whilst the forked penis is used to grip the margin of the body of its mate in a chopstick-like fashion during the process of dermal impregnation. Dense rhabdites were also found on the surface of the paired penis. The penis-gripping behaviour of T. nigropapillosum plays an important role during dermal impregnation. We suggest that this flatworm species experiences unilateral sex conflicts, not only in the structures of the dorsal papillae and the male genital organ, but also in the mating pattern.

GBIF url: https://www.gbif.org/dataset/9721e940-30f7-4173-bed6-75e381da44d8
Homepage: https://tb.plazi.org/GgServer/summary/FFDFFF921915E60F4956AC585B08FFAC
Citation: Jie W, Kuo S, Mok H, tatiana (2014). Re-description of Thysanozoon nigropapillosum (Polycladida: Pseudocerotidae) from the South China Sea, with observations on a novel pre-copulatory structure, sexual behaviour and diet. Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.5281/zenodo.5356104 accessed via GBIF.org on 2026-02-12.