Ctenodesma borneensis (Issel, 1874:476)
Taxonomy & Nomenclature
Synonym/s: Unio plicatulus I. Lea, 1859:152 (junior homonym); Unio borneeensis Issel, 1874:476; Unio pensitatus P. Fischer & Crosse, 1894 [unjustified nomen novum]
See Graf & Cummings (2025) for a more complete taxonomic history.
Conservation Status
Last record: 1962 (Zieritz et al., 2020)
Rediscovered in: 2018 (Zieritz et al., 2020)
IUCN RedList status: Endangered
Distribution & Habitat
Borneo
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Issel, A. (1874). Molluschi Borneensi. Illustrazione delle specie terrestri e d'acqua dolce raccolte nell'isola di Borneo. Dai Signori G. Doria e O. Beccari. Memoria di Arturo Issel. Annali del Museo Civico di Storia Naturale di Genova. 6: 366-486, pls 4-7.
Other references:
Drouët, H. (1894). Description de deux Unionidæ de Bornéo. Rev. Biol. Nord France 6: 216-218.
Drouët, H. and Chaper, M. (1892). Voyage de M. Chaper a Bornéo. Unionidae. Mémoires de la Société zoologique de France 5: 145-154.
Graf, Daniel L. and Cummings, Kevin S. (2021). A ‘big data’ approach to global freshwater mussel diversity (Bivalvia: Unionoida), with an updated checklist of genera and species. Journal of Molluscan Studies 87(1): eyaa034 (36 pp.). https://doi.org/10.1093/mollus/eyaa034
Graf, Daniel L. and Cummings, Kevin S. (2025). The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). MUSSEL Project Web Site, https://www.mussel-project.net/. Accessed 28 June 2025.
Haas, F. (1912). Die Unioniden. [in] H.C. Küster, Systematisches Conchylien-Cabinet von Martini und Chemnitz 9 (pt. 2, h. 46): 113-136, pls. 30-35.
Haas, F. (1924). Beiträge zu einer Monographie der asiatischen Unioniden. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 38: 129-203.
Haas, F. (1927). Bemerkungen über Najaden, mit Beschreibung zweier neuer Arten. Senckenbergiana 9: 20-23, 1 pl.
Haas, F. (1969a). Superfamilia Unionacea. Das Tierreich 88: x, 1-663. Walter de Gruyter & Co., Berlin.
Haas, F. (1969b). Superfamily Unionacea. Treatise on Invert. Paleo: N411-N470.
Jeratthitikul, E., Sutcharit, C. and Prasankok, P. (2024). Two new genera and three new species of exceptionally rare and endemic freshwater mussels (Bivalvia, Unionidae) from the Mekong Basin. Zoosystematics and Evolution 100(4): 1333-1345. https://doi.org/10.3897/zse.100.130929
Lea, I. (1859). Descriptions of twenty one new species of exotic Unionidae. Proceedings of the Academy of Natural Sciences of Philadelphia. 11: 151-154.
Marwoto, R. M. (1987). Some freshwater mussels family Unionidae and gastropods from Rengas and Sungkai Rivers in Jambi Province. Berita Biologi 3(7): 306-307.
MolluscaBase eds. (2020). MolluscaBase. Ctenodesma borneensis (Issel, 1874). Accessed at: http://molluscabase.org/aphia.php?p=taxdetails&id=1335123 on 2020-07-25
MolluscaBase eds. (2025). MolluscaBase. Ctenodesma borneensis (Issel, 1874). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1335123 on 2025-06-28
Pfeiffer, J. M., Graf, Daniel L., Cummings, Kevin S. and Page, L. M. (2021). Taxonomic revision of a radiation of Southeast Asian freshwater mussels (Unionidae: Gonideinae: Contradentini+Rectidentini). Invertebrate Systematics 35(4): 394-470. https://doi.org/10.1071/IS20044
Simpson, Charles Torrey. (1900). Synopsis of the naiades, or pearly fresh-water mussels. Proceedings of the United States National Museum 22(1205): 501-1044, pl. 18.
Simpson, Charles Torrey. (1914). A descriptive catalogue of the naiades, or pearly fresh-water mussels. Parts I-III. Detroit, Michigan: Bryant Walker. 1540 pp.
Starobogatov, Ya. I. (1970). Fauna of molluscs and zoogeographic division of continental waterbodies of the globe. 372 pp.
Thiele, J. (1934). Handbuch der systematischen Weichtierkunde 3: 779-1022.
Zieritz, Alexandra, Bogan, Arthur E., Froufe, E., Klishko, O., Kondo, T., Kovitvadhi, U., Kovitvadhi, S., Lee, J. H., Lopes-Lima, M., Pfeiffer, J. M., Sousa, R., Van Do, T., Vikhrev, I., Zanatta, D. T. (2018a). Diversity, biogeography and conservation of freshwater mussels (Bivalvia: Unionida) in East and Southeast Asia. Hydrobiologia. 810(1): 29-44. https://doi.org/10.1007/s10750-017-3104-8
Zieritz, Alexandra, Bogan, Arthur E., Rahim, Khairul Adha A., Sousa, Ronaldo, Jainih, Leonardo, Harun, Sahana, Razak, Nabilah Fatin Abd, Gallardo, Belinda, McGowan, Suzanne, Hassan, Ruhana and Lopes-Lima, Manuel. (2018b). Changes and drivers of freshwater mussel diversity and distribution in northern Borneo. Biological Conservation 219: 126-137. https://doi.org/10.1016/j.biocon.2018.01.012
Zieritz, Alexandra, Jainih, L., Pfeiffer, J., Rahim, K. A. A. and Prayogo, H. (2021). A new genus and two new, rare freshwater mussel (Bivalvia: Unionidae) species endemic to Borneo are threatened by ongoing habitat destruction. Aquatic Conservation: Marine & Freshwater Ecosystems 31(11): 3169-3183. https://doi.org/10.1002/aqc.3695
Zieritz, Alexandra and Lopes-Lima, M. (2018). Handbook and National Red-List of the Freshwater Mussels of Malaysia. Zieritz & Lopes-Lima, Kuala Lumpur. 29 pp.
Zieritz, A., Pfeiffer, J., Rahim, K. A. A., Prayogo, H., Anwari, M. S. et al. (2024). High endemic freshwater mussel (Bivalvia: Unionida) diversity in western Borneo, with description of three new species. Zoological Journal of the Linnean Society 201(3): zlae076 (1-15 pp.). https://doi.org/10.1093/zoolinnean/zlae076
Zieritz, A. and Rahim, K. A. A. (2025). Ctenodesma borneensis. The IUCN Red List of Threatened Species 2025: e.T173117A150733086. https://dx.doi.org/10.2305/IUCN.UK.2025-1.RLTS.T173117A150733086.en. Accessed on 28 June 2025.
Zieritz, Alexandra, Taha, Hussein et al. (2020). Towards the conservation of Borneo’s freshwater mussels: rediscovery of the endemic Ctenodesma borneensis and first record of the non-native Sinanodonta lauta. Biodiversity and Conservation. https://doi.org/10.1007/s10531-020-01971-1
https://extinctanimals.proboards.com/thread/25666/ctenodesma-borneensis
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