Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5659 No. 3: 4 Jul. 2025
Type: Article
Published: 2025-07-04
DOI: 10.11646/zootaxa.5659.3.3
Page range: 357-376
Abstract views: 46
PDF downloaded: 1

On the genus Lagenopolycystis Artois and Schockaert, 2000 (Platyhelminthes, Kalyptorhynchia, Polycystididae)

Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium
Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium
Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium; Museum for Nature Hamburg – Zoology; Leibniz Institute for the Analysis of Biodiversity Change (LIB); Martin-Luther-King-Platz 3; D-20146 Hamburg; Germany
Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium
Brussels Interuniversity Genomics High Throughput Core (BRIGHTcore); Vrije Universiteit Brussel (VUB); Université Libre de Bruxelles (ULB); Brussels; Belgium
Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium
Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium
Royal Zoological Society of Antwerp; Centre for Research & Conservation; Koningin Astridplein 20-26; B-2018 Antwerp; Belgium
Hasselt University; Centre for Environmental Sciences; Research Group ‘Zoology: Biodiversity and Toxicology’; Campus Diepenbeek; Agoralaan Gebouw D; B-3590 Diepenbeek; Belgium
Platyhelminthes Rhabdocoela taxonomy systematics marine biodiversity microturbellarians

Abstract

A comprehensive and comparative overview of the taxon Lagenopolycystis Artois and Schockaert, 2000 (= Lagenorhynchus Brunet, 1965) is given, followed by comments on the two known species: Lagenopolycystis peresi (Brunet, 1965) Artois & Schockaert, 2000 and L. mandelai Willems & Artois, 2017, and the description of six new ones: L. articulata sp. nov., L. azorensis sp. nov., L. canariensis sp. nov., L. conglobata sp. nov., L. mutabilis sp. nov., and L. poena sp. nov. The species of this morphologically homogenous genus can be distinguished from each other based on the dimensions and morphology of the hard parts of the male copulatory organ. All species occur in sandy marine habitats and are described from the western Mediterranean, the Atlantic coast of the Iberian peninsula, and Macaronesia. One species (L. poena sp. nov.) also occurs on the Swedish west coast, while L. mutabilis sp. nov. and L. mandelai occur on the East and South African coast, respectively. The monophyly of the genus is briefly discussed.

 

References

  1. Artois, T.J. & Schockaert, E.R. (2000) Interstitial fauna of the Galapagos: Typhlopolycystidinae (Platyhelminthes, Polycystididae). Tropical Zoology, 13 (1), 141–158. https://doi.org/10.1080/03946975.2000.10531128
  2. Artois, T.J. & Schockaert, E.R. (2003) Primary homology assessment in the male atrial system of the Polycystididae (Platyhelminthes: Eukalyptorhynchia). Zoologischer Anzeiger - A Journal of Comparative Zoology, 242 (2), 179–190. https://doi.org/10.1078/0044-5231-00095
  3. Artois, T.J. & Schockaert, E.R. (2005) Primary homology assessment of structures in the female atrial system among species of the Polycystididae (Rhabditophora, Eukalyptorhynchia). Invertebrate Biology, 124 (2), 109–118. https://doi.org/10.1111/j.1744-7410.2005.00013.x
  4. Artois, T.J., Willems, W., Revis, N., Martens, P. & Schockaert, E.R. (2012) New species of Limipolycystis Schilke, 1970 (Rhabdocoela: Kalyptorhynchia: Polycystididae) from the Western Mediterranean. Zootaxa, 3325 (1), 26–36. https://doi.org/10.11646/zootaxa.3325.1.2
  5. Brunet, M. (1965) Turbellariés calyptorhynques de substrats meubles de la région de Marseille. Recueil des travaux de la station marine d’Endoume, 39 (55), 127–220.
  6. Diez, Y.L., Sanjuan, C., Monnens, M. & Artois, T. (2023) New species of Polycystididae (Platyhelminthes: Kalyptorhynchia) from Cuba and the Pacific coast of Panama. European Journal of Taxonomy, 856, 67–86. https://doi.org/10.5852/ejt.2023.856.2029
  7. Diez, Y.L., Sanjuan, C., Reygel, P., Roosen, P. & Artois, T. (2018) First record of Polycystididae 2018 (Platyhelminthes, Kalyptorhynchia) from Cuba, with the description of a new genus and five new species, and remarks and the description of one new species from Panama. Zootaxa, 4514 (1), 107–125. https://doi.org/10.11646/zootaxa.4514.1.9
  8. Evdonin, L.A. (1977) Monograph of the Turbellaria Kalyptorhynchia in the fauna of the USSR and adjacent areas. [In Russian]. Fauna USSR, New Series, Turbellaria, 1 (Pt 1), 115, 1–400.
  9. Karling, T.G. (1956) Morphologisch-histologische Untersuchungen an den männlichen Atrialorganen der Kalyptorhynchia (Turbellaria). Arkiv för Zoologi, Serie 2, 9 (7), 187–279.
  10. Martens, P.M. (1984) Comparison of three different extraction methods for Turbellaria. Marine Ecology Progress Series, 14, 229–234. https://doi.org/10.3354/meps014229
  11. Meixner, J. (1925) Beitrag zur Morphologie und zum System der Turbellaria-Rhabdocoela. I. Die Kalyptorhynchia. Zeitschrift fur Morphologie und Ökologie der Tiere, 3, 255–343. https://doi.org/10.1007/BF00408146
  12. Schilke, K. (1970) Kalyptorhynchia (Turbellaria) aus dem Eulitoral der deutschen Nordseeküste. Helgoländer wissenschaftliche Meeresuntersuchungen, 21, 143–265. https://doi.org/10.1007/BF01630522
  13. Schockaert, E.R. (1996) Turbellarians: the importance of turbellarians in ecosystems. In: Hall, G. (Ed.), Methods for the examination of organismal diversity in soils and sediments. CAB International in association with UNESCO and the IUBS, Wallingford, pp. 211–225.
  14. Schockaert, E.R., Martens, P.M., Revis, N., Janssen, T., Willems, W. & Artois, T. (2014) A new genus with six new species of Typhlopolycystidinae Evdonin, 1977 (Platyhelminthes, Kalyptorhynchia, Polycystididae). Zootaxa, 3755 (3), 259–272. https://doi.org/10.11646/zootaxa.3755.3.4
  15. Schockaert, E.R., Moons, P., Janssen, T., Tessens, B.S., Reygel, P.C., Revis, N., Jouk, P.E.H., Willems, W.R. & Artois, T.J. (2019) On the genus Typhlopolycystis Karling, 1956 (Platyhelminthes, Kalyptorhynchia, Polycystididae), with data on the five known species and the description of eleven new species. Zootaxa, 4603 (1), 81–104. https://doi.org/10.11646/zootaxa.4603.1.4
  16. Tessens, B., Janssen, T. & Artois, T. (2014) Molecular phylogeny of Kalyptorhynchia (Rhabdocoela, Platyhelminthes) inferred from ribosomal sequence data. Zoologica Scripta, 43 (5), 519–530. https://doi.org/10.1111/zsc.12066
  17. Van Steenkiste, N.W.L. & Leander, B.S. (2018) Species diversity of eukalyptorhynch flatworms (Platyhelminthes, Rhabdocoela) from the coastal margin of British Columbia: Polycystididae, Koinocystididae and Gnathorhynchidae. Marine Biology Research, 14 (9–10), 899–923. https://doi.org/10.1080/17451000.2019.1575514
  18. Willems, W.R., Reygel, P., Van Steenkiste, N., Tessens, B. & Artois, T.J. (2017) Kalyptorhynchia (Platyhelminthes: Rhabdocoela) from KwaZulu-Natal (South Africa), with the description of six new species. Zootaxa, 4242 (3), 441–466. https://doi.org/10.11646/zootaxa.4242.3.2
  19. Willems, W.R., Schockaert, E.R. & Artois, T.J. (2006) Report on the Polycystididae (Rhabdocoela, Kalyptorhynchia) from Australia, with the description of twelve new species and six new genera. Hydrobiologia, 563, 329–355. https://doi.org/10.1007/s10750-006-0041-3
  20. WoRMS (2024) Typhlopolycystidinae Evdonin, 1977. Available from: https://www.marinespecies.org/aphia.php?p=taxdetails&id=155195 (accessed 6 August 2024)

How to Cite

Monnens, M., Schockaert, E.R., Diez, Y.L., Revis, N., Janssen, T., Jouk, P.E.H., Tessens, B., Steenkiste, N.W.L.V. & Artois, T.J. (2025) On the genus Lagenopolycystis Artois and Schockaert, 2000 (Platyhelminthes, Kalyptorhynchia, Polycystididae). Zootaxa, 5659 (3), 357–376. https://doi.org/10.11646/zootaxa.5659.3.3