WoRMS

WoRMS taxon details

Baseodiscus Diesing, 1850

Polia delineata Delle Chiaje, 1822

AphiaID

122370 (urn:lsid:marinespecies.org:taxname:122370)

Classification

Status

accepted

Rank

Genus

Type taxon

Baseodiscus delineatus (Delle Chiaje, 1822) (type by monotypy)

Type taxon of

Baseodiscidae Bürger, 1904
Baseodiscinae Bürger, 1904

Parent

Baseodiscinae Bürger, 1904

Original name

Baseodiscus Diesing, 1850

Synonymised names

Balanocephalus Kennel, 1891 · unaccepted (synonym)

Basiodiscus · unaccepted > misspelling - incorrect subsequent spelling

Eupolia Hubrecht, 1887 · unaccepted (Synonym)

Nematodemus von Graff, 1896 · unaccepted > junior subjective synonym

Polia Delle Chiaje, 1822 · unaccepted (Homonymy)

Taeniosoma Stimpson, 1857 · unaccepted > junior subjective synonym

Toeniosoma · unaccepted (Misspelling)

Direct children (64)

Ordering

Alphabetically
By status

Children Display

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Species Baseodiscus abyssorum (Joubin, 1902)
Species Baseodiscus amboinensis (Staub, 1900)
Species Baseodiscus antarcticus Baylis, 1915
Species Baseodiscus antillensis (Bürger, 1895)
Species Baseodiscus argentinus Alfaya, Chernyshev, Lozada & Bigatti, 2025
Species Baseodiscus aureus (Bürger, 1896)
Species Baseodiscus australis (Hubrecht, 1887)
Species Baseodiscus bilineatus (Schmarda, 1859)
Species Baseodiscus cingulatus (Coe, 1906)
Species Baseodiscus curtus (Hubrecht, 1879)
Species Baseodiscus delineatus (Delle Chiaje, 1822)
Species Baseodiscus discolor (Coe, 1901)
Species Baseodiscus edmondsoni Coe, 1934
Species Baseodiscus filholi (Joubin, 1902)
Species Baseodiscus giardii (Hubrecht, 1887)
Species Baseodiscus giribeti Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus hemprichii (Ehrenberg, 1831)
Species Baseodiscus hookabeae Abato & Kajihara in Abato, Abatay, Along, Aspe, Awa, Burias, L. Calagui, S.I. Calagui, Caneos, Dahilog-Caralde, Demetillo, Jovita, Leones, Niez, Seronay & Kajihara, 2025
Species Baseodiscus indicus (Punnett, 1903)
Species Baseodiscus kakuii Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus komatsui Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus longissimus Punnett & Cooper, 1909
Species Baseodiscus lumbricoides (von Graff, 1899)
Species Baseodiscus maculosus (Bürger, 1895)
Species Baseodiscus marmoratus (Bürger, 1890)
Species Baseodiscus mexicanus (Bürger, 1893)
Species Baseodiscus mindanaoensis Abato & Kajihara in Abato, Abatay, Along, Aspe, Awa, Burias, L. Calagui, S.I. Calagui, Caneos, Dahilog-Caralde, Demetillo, Jovita, Leones, Niez, Seronay & Kajihara, 2025
Species Baseodiscus minor (Hubrecht, 1879)
Species Baseodiscus multiporatus (Punnett, 1900)
Species Baseodiscus narusei Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus nipponensis (Hubrecht, 1887)
Species Baseodiscus ohtsukai Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus pallidus (Isler, 1900)
Species Baseodiscus paracelensis Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus pellucidus (Kennel, 1891)
Species Baseodiscus pholidotus (Punnett, 1900)
Species Baseodiscus platei (Bürger, 1896)
Species Baseodiscus princeps (Coe, 1901)
Species Baseodiscus profundus Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus punnetti (Coe, 1904)
Species Baseodiscus quinquelineatus (Quoy & Gaimard, 1833)
Species Baseodiscus rugosus (Punnett, 1900)
Species Baseodiscus sordidus Punnett & Cooper, 1909
Species Baseodiscus striatus (Quoy & Gaimard, 1833)
Species Baseodiscus sulcatus (Isler, 1900)
Species Baseodiscus takakurai Gibson, 1995
Species Baseodiscus unicolor Stiasny-Wijnhoff, 1925
Species Baseodiscus unistriatus (Isler, 1900)
Species Baseodiscus univittatus (Coe, 1906)
Species Baseodiscus urgorrii Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus zebra Kajihara, Abukawa & Chernyshev, 2022
Species Baseodiscus alpha (Joubin, 1902) (unaccepted > nomen nudum)
Species Baseodiscus anocellatus Korotkevich, 1978 (unaccepted > nomen nudum)
Species Baseodiscus caeca (Chapuis, 1886) accepted as Polia caeca Chapuis, 1886 (synonym)
Species Baseodiscus insignis Punnett & Cooper, 1909 accepted as Baseodiscus delineatus (Delle Chiaje, 1822) (synonym)
Species Baseodiscus jonasii Strand, Hjelmgren & Sundberg, 2005 accepted as Baseodiscus striatus (Quoy & Gaimard, 1833) (unaccepted > junior subjective synonym)
Species Baseodiscus lineolatus (Bürger, 1895) accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833) (unaccepted > junior subjective synonym, synonym)
Species Baseodiscus mediolineatus Bürger, 1893 accepted as Baseodiscus hemprichii (Ehrenberg, 1831) (synonym)
Species Baseodiscus melanogrammus (Punnett, 1900) accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833) (unaccepted > junior subjective synonym)
Species Baseodiscus mexicanum accepted as Baseodiscus mexicanus (Bürger, 1893) (unaccepted > incorrect grammatical agreement of specific epithet)
Species Baseodiscus nipponicus Kajihara, 2017 accepted as Baseodiscus nipponensis (Hubrecht, 1887) (unaccepted > misspelling - incorrect subsequent spelling, Lapsus calami)
Species Baseodiscus ophiocephalus ? accepted as Emplectonema ophiocephala (Schmarda, 1859) accepted as Emplectonema ophiocephalum (Schmarda, 1859) (New Combination)
Species Baseodiscus septemlineatus (Stimpson, 1857) accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833) (synonym)
Species Baseodiscus xanthophila (Giard, 1888) accepted as Carcinonemertes carcinophila (Kölliker, 1845) (synonym)

Environment

marine, ~~brackish~~, ~~fresh~~, ~~terrestrial~~

Fossil range

recent only

Grammatical gender

masculine

Original description

Diesing, C.M. [[Karl Moritz, usually as Latin C. M = Carolo Mauritio]. (1850). Systema Helminthum. Vol. I. [book]. xiii[xvi] + 679 pp.W. Vindobonae, Braumüller, Wien., available online at https://archive.org/details/systemahelminth00diesgoog/page/n5/mode/2up?view=theater
page(s): 243 [details]

Taxonomic citation

Norenburg, J.; Chernyshev, A.; Kajihara, H.; Maslakova, S. (2026). World Nemertea Database. Baseodiscus Diesing, 1850. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=122370 on 2026-09-20

Taxonomic edit history

Date

action

2004-12-21 15:54:05Z

created

Gibson, Raymond

2006-09-06 06:55:51Z

changed

Martinez, Olga

2013-08-29 19:30:38Z

changed

Norenburg, Jon

2024-05-07 02:19:42Z

changed

Norenburg, Jon

2024-10-16 14:47:18Z

changed

Chernyshev, Alexey

2025-04-03 15:15:58Z

changed

Chernyshev, Alexey

2026-05-14 14:26:36Z

changed

Chernyshev, Alexey

Licensing

The webpage text is licensed under a Creative Commons Attribution 4.0 License

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Nomenclature

original description Diesing, C.M. [[Karl Moritz, usually as Latin C. M = Carolo Mauritio]. (1850). Systema Helminthum. Vol. I. [book]. xiii[xvi] + 679 pp.W. Vindobonae, Braumüller, Wien., available online at https://archive.org/details/systemahelminth00diesgoog/page/n5/mode/2up?view=theater
page(s): 243 [details]

original description (of Polia Delle Chiaje, 1822) Delle Chiaje S. (1823-1831). Memorie sulla storia e notomia degli animali senza vertebre del regno di Napoli. Napoli: Fratelli Fernandes (vol. 1), and Società Tipografica (vol. 2-4). Vol. 1, pp. i-xii, 1-84 [1823], pp. 1-184 [1824]; vol. 2, pp. [1-4] + 185-224 [1825], pp. 225-444 [1826]; vol. 3, pp. i-xx, pp. 1-232 [1828]; vol. 4, pp. i-vii [1831], 1-116 [1830], pp. 117-214 [1831]; pl. 1-4; pl. 1-69 [date?], pl. 70-109 [1830][dates according to Sherborn, 1922]., available online at https://doi.org/10.5962/bhl.title.10021 [details]

original description (of Nematodemus von Graff, 1896) Graff, L. von. (1896). Ueber das System und die geographische Verbreitung der Landplanarien. Verhandl Deutsch Zoolog Ges, 61-93 [6:75-93] [details]

original description (of Eupolia Hubrecht, 1887) Hubrecht, A.A.W. (1887). Report on the Nemertea collected by H.M.S. Challenger during the years 1873-76. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology. 19 (part 54): 1-150, pl. 1-16., available online at http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-54/README.htm [details]

original description (of Balanocephalus Kennel, 1891) Kennel, J. von. (1891). [No formal title, a report of Kennel's presentation entitled "über einige Nemertinen" at a meeting of the Estonian Naturalists' Society (Dorpater Naturforscher-Gesellschaft) on 11 May 1890]. Sitzungsberichte der Naturforscher-Gesellschaft bei der Universität Dorpat. 9: 289–293., available online at https://www.digitale-sammlungen.de/de/view/bsb11621160?page=298,299 [details]

original description (of Taeniosoma Stimpson, 1857) Stimpson, W. (1857). Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federata missa, Cadwaladaro Ringgold et Johanne Rodgers Ducibus, observavit et descrips, Pars II, Turbellarieorum Nemertineorum. Proceedings of the Academy of Natural Sciences of Philadelphia. 9: 159-165 [15-22 in separate]., available online at https://doi.org/10.5962/bhl.title.51447 [details]

Taxonomy

taxonomy source Kajihara, H.; Abukawa, S.; Chernyshev, A. V. (2022). Exploring the basal topology of the heteronemertean tree of life: establishment of a new family, along with turbotaxonomy of Valenciniidae (Nemertea: Pilidiophora: Heteronemertea). Zoological Journal of the Linnean Society. 196(1): 503–548., available online at https://doi.org/10.1093/zoolinnean/zlac015 [details] Available for editors

[request]

Other

additional source Gibson, R. (2005). Nemertina DB. Liverpool John Moore University, UK. [details]

additional source Hayward, P.J. & J.S. Ryland (Eds.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. Clarendon Press: Oxford, UK. 627 pp. (look up in IMIS), available online at https://doi.org/10.1093/oso/9780198573562.001.0001 [details] Available for editors

[request]

additional source Neave, S.A. (1939 - 1996). Nomenclator Zoologicus. vol. 1-10 Online., available online at https://www.checklistbank.org/dataset/126539/about [details]