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CaRMS taxon detailsLeptomesochra Sars G.O., 1911
115195 (urn:lsid:marinespecies.org:taxname:115195)
accepted
Genus
Interleptomesochra Lang, 1965 · unaccepted (junior subjective synonym after...)
junior subjective synonym after Huys (2009)
marine,
Sars, G.O. (1911). Copepoda Harpacticoida. Parts XXXIII & XXXIV. Supplement (continued). <em>An Account of the Crustacea of Norway, with short descriptions and figures of all the species. Bergen Museum, Bergen.</em> 5:397-420, suppl. pls. 27-42.
page(s): 418 [details] 
Taxonomic remark According to Huys (2009):
1) Sars (1911) proposed Leptomesochra for Mesochra macintoshi Scott & Scott, 1895, Normanella...
Taxonomic remark According to Huys (2009): 1) Sars (1911) proposed Leptomesochra for Mesochra macintoshi Scott & Scott, 1895, Normanella attenuata Scott A., 1896, Leptomesochra tenuicornis Sars, 1911, and Leptomesochra confluens Sars, 1911; but he did not fix the type species, rendering the genus name Leptomesochra unavailable. 2) Lang (1936) proposed the genus name Leptameira with Leptomesochra confluens as the type species, but did not include a diagnosis for Leptameira, rendering the genus name unavailable. Later, Nicholls (1939) added Leptameira attenuata Nicholls, 1939, and gave the diagnostic features to differentiate Leptameira, but he failed in fixing the type species, rendering the genus name unavailable one more time. 3) Lang (1944) relegated Leptameira to a junior subjective synonym of Leptomesochra, but the designation of Mesochra macintoshi as the type species of Leptomesochra was also invalid, rendering the genus name Leptomesochra unavailable again. 4) It was Vervoort (1964) who validly fixed Normanella attenuata Scott A., 1896 as the type species, and included Leptomesochra nasuta Sewell, 1940, Leptomesochra africana Kunz, 1951, Leptomesochra eulitoralis Noodt, 1952, Leptomseochra elongata Bozic, 1955, Leptomesochra pygmaea Vervoort, 1964 and Leptomesochra nichollsi Noodt, 1955, the latter is a substitute name of Leptomesochra attenuata (Nicholls, 1939), a secondary homonym of Leptomesochra attenuata (Scott A., 1896). 5) Lang (1965) revised the genus Leptomesochra and divided it into three genera: - Praeleptomesochra Lang, 1965 (L. africana as the type species, plus Praeleptomesochra similis Lang, 1965, and Leptomesochra pygmaea), - Leptomesochra Sars, 1911 (Mesochra macintoshi, Leptomesochra nasuta, Leptomesochra confluens, Leptomesochra infima, and Leptameira attenuata Nicholls, 1939), - Interleptomesochra Lang, 1965 (L. tenicornis as the type species, plus Normanella attenuata Scott A., 1896, Leptomesochra tenuicornis, Leptomesochra elongata, Leptomesochra eulitoralis and Interleptomesochra reducta Lang, 1965) Interleptomesochra Lang, 1965 became a junior subjective synonym of Leptomesochra Sars, 1911, because Sars (1911) concept of Leptomesochra and Lang's (1965) concept of Interleptomesochra contains Normanella attenuata Scot A., 1896, and the generic concept of Leptomesochra Sars, 1911 coincides with Lang's (1965) diagnosis of Interleoptomesochra. Two other species were originally added to Interleptomesochra Lang, 1965, Interleptomesochra noodti Galhano, 1968, and Interleptomesochra boguensis Lindgren, 1975. Since Interleptomesochra Lang, 1965 is a junior synonym of Leptomesochra Sars, 1911, these two species became Leptomesochra noodti (Galhano, 1968) and Leptomesochra boguensis (Lindgren, 1975). Then, Leptomesochra (with Mesochra macintoshi, Leptomesochra nasuta, Leptomesochra confluens, Leptomesochra infima, and Leptameira attenuata Nicholls, 1939), became orphaned because its type species, Normanella attenuata Scott A., 1896, was left in Interleptomesochra. Huys (2009) made available Lang's (1936) Leptameira with Leptomesochra confluens Sars, 1911 as the type species, and included Mesochra macintoshi Scott & Scott, 1895b = Leptameira macintoshi (Scott & Scott, 1895b) comb. nov., Leptomesochra confluens Sars, 1911c = Leptameira confluens (Sars, 1911c) comb. nov., Leptomesochra infima Monard, 1928 = Leptameira infima (Monard, 1928) comb. nov., Leptameira attenuata Nicholls, 1939a = Leptameira attenuata (Nicholls, 1939a) comb. nov.; Leptomesochra nasuta Sewell, 1940 = Leptameira nasuta (Sewell, 1940) comb. nov., Leptomesochra hirsuta Wiborg, 1964 = Leptameira hirsuta (Wiborg, 1964) comb. nov., Leptomesochra theodoridis Soyer, 1966 = Leptameira theodoridis (Soyer, 1966) comb. nov., Leptomesochra eremeensis Kornev & Chertoprud, 2008 = Leptameira eremeensis (Kornev & Chertoprud, 2008) comb. nov., and Leptomesochra kunzi Kornev & Chertoprud, 2008 = Leptameira kunzi (Kornev & Chertoprud, 2008) comb. nov. [details]
Walter, T.C.; Boxshall, G. (2025). World of Copepods Database. Leptomesochra Sars G.O., 1911. Accessed through: Nozères, C., Kennedy, M.K. (Eds.) (2025) Canadian Register of Marine Species at: https://www.marinespecies.org/CaRMS/aphia.php?p=taxdetails&id=115195 on 2026-07-04
Nozères, C., Kennedy, M.K. (Eds.) (2026). Canadian Register of Marine Species. Leptomesochra Sars G.O., 1911. Accessed at: https://www.marinespecies.org/CaRMS/aphia.php?p=taxdetails&id=115195 on 2026-07-04
Date action by
original description
Sars, G.O. (1911). Copepoda Harpacticoida. Parts XXXIII & XXXIV. Supplement (continued). <em>An Account of the Crustacea of Norway, with short descriptions and figures of all the species. Bergen Museum, Bergen.</em> 5:397-420, suppl. pls. 27-42.
page(s): 418 [details] original description (of Interleptomesochra Lang, 1965) Lang, K. (1965). Copepoda Harpacticoida from the Californian Pacific coast. <em>Kungliga Svenska Vetensk-Akademiens Handlingar, Fjarde Serien. Almquist & Wiksell, Stockholm.</em> 10(2):1-560, figs. 1-303, pls. 1-6. (look up in IMIS) [details] Available for editors  basis of record Huys, R. (2001). Copepoda - Harpacticoida. <em>In: Costello, M.J. et al. (eds.) European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels.</em> 50:268-280. (look up in IMIS) [details] Available for editors additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details] additional source Lang, K. (1965). Copepoda Harpacticoida from the Californian Pacific coast. <em>Kungliga Svenska Vetensk-Akademiens Handlingar, Fjarde Serien. Almquist & Wiksell, Stockholm.</em> 10(2):1-560, figs. 1-303, pls. 1-6. (look up in IMIS) page(s): 338; note: Lang synonomized Leptameria Lang 1936 with Leptomesochra, then split Leptomesochra into Interleptomesochra and Paraleptomesochra [details] Available for editors additional source Brunel, P., L. Bosse & G. Lamarche. (1998). Catalogue of the marine invertebrates of the estuary and Gulf of St. Lawrence. <em>Canadian Special Publication of Fisheries and Aquatic Sciences, 126.</em> 405 pp. (look up in IMIS) [details] Available for editors additional source Bodin, P. (1997). Catalogue of the new marine Harpacticoid Copepods. <em>Studiedocumenten van het K.B.I.N. = Documents de Travail de l'I.R.Sc.N.B., 89. Koninklijk Belgisch Instituut voor Natuurwetenschappen: Brussels, Belgium.</em> 89: 1-304. (look up in IMIS) page(s): 418 [details] Available for editors additional source Webber, W.R., G.D. Fenwick, J.M. Bradford-Grieve, S.G. Eagar, J.S. Buckeridge, G.C.B. Poore, E.W. Dawson, L. Watling, J.B. Jones, J.B.J. Wells, N.L. Bruce, S.T. Ahyong, K. Larsen, M.A. Chapman, J. Olesen, J.S. Ho, J.D. Green, R.J. Shiel, C.E.F. Rocha, A. Lörz, G.J. Bird & W.A. Charleston. (2010). Phylum Arthropoda Subphylum Crustacea: shrimps, crabs, lobsters, barnacles, slaters, and kin. <em>in: Gordon, D.P. (Ed.) (2010). New Zealand inventory of biodiversity: 2. Kingdom Animalia: Chaetognatha, Ecdysozoa, Ichnofossils.</em> pp. 98-232 (COPEPODS 21 pp.). [details] Available for editors source of synonymy Huys, R. (2009). Unresolved cases of type fixation, synonymy and homonymy in harpacticoid copepod nomenclature (Crustacea: Copepoda). <em>Zootaxa.</em> 2183:1-99., available online at http://www.mapress.com/zootaxa/2009/2/zt02183p099.pdf [details] Available for editors  Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Taxonomic remark According to Huys (2009): 1) Sars (1911) proposed Leptomesochra for Mesochra macintoshi Scott & Scott, 1895, Normanella attenuata Scott A., 1896, Leptomesochra tenuicornis Sars, 1911, and Leptomesochra confluens Sars, 1911; but he did not fix the type species, rendering the genus name Leptomesochra unavailable. 2) Lang (1936) proposed the genus name Leptameira with Leptomesochra confluens as the type species, but did not include a diagnosis for Leptameira, rendering the genus name unavailable. Later, Nicholls (1939) added Leptameira attenuata Nicholls, 1939, and gave the diagnostic features to differentiate Leptameira, but he failed in fixing the type species, rendering the genus name unavailable one more time. 3) Lang (1944) relegated Leptameira to a junior subjective synonym of Leptomesochra, but the designation of Mesochra macintoshi as the type species of Leptomesochra was also invalid, rendering the genus name Leptomesochra unavailable again. 4) It was Vervoort (1964) who validly fixed Normanella attenuata Scott A., 1896 as the type species, and included Leptomesochra nasuta Sewell, 1940, Leptomesochra africana Kunz, 1951, Leptomesochra eulitoralis Noodt, 1952, Leptomseochra elongata Bozic, 1955, Leptomesochra pygmaea Vervoort, 1964 and Leptomesochra nichollsi Noodt, 1955, the latter is a substitute name of Leptomesochra attenuata (Nicholls, 1939), a secondary homonym of Leptomesochra attenuata (Scott A., 1896). 5) Lang (1965) revised the genus Leptomesochra and divided it into three genera: - Praeleptomesochra Lang, 1965 (L. africana as the type species, plus Praeleptomesochra similis Lang, 1965, and Leptomesochra pygmaea), - Leptomesochra Sars, 1911 (Mesochra macintoshi, Leptomesochra nasuta, Leptomesochra confluens, Leptomesochra infima, and Leptameira attenuata Nicholls, 1939), - Interleptomesochra Lang, 1965 (L. tenicornis as the type species, plus Normanella attenuata Scott A., 1896, Leptomesochra tenuicornis, Leptomesochra elongata, Leptomesochra eulitoralis and Interleptomesochra reducta Lang, 1965) Interleptomesochra Lang, 1965 became a junior subjective synonym of Leptomesochra Sars, 1911, because Sars (1911) concept of Leptomesochra and Lang's (1965) concept of Interleptomesochra contains Normanella attenuata Scot A., 1896, and the generic concept of Leptomesochra Sars, 1911 coincides with Lang's (1965) diagnosis of Interleoptomesochra. Two other species were originally added to Interleptomesochra Lang, 1965, Interleptomesochra noodti Galhano, 1968, and Interleptomesochra boguensis Lindgren, 1975. Since Interleptomesochra Lang, 1965 is a junior synonym of Leptomesochra Sars, 1911, these two species became Leptomesochra noodti (Galhano, 1968) and Leptomesochra boguensis (Lindgren, 1975). Then, Leptomesochra (with Mesochra macintoshi, Leptomesochra nasuta, Leptomesochra confluens, Leptomesochra infima, and Leptameira attenuata Nicholls, 1939), became orphaned because its type species, Normanella attenuata Scott A., 1896, was left in Interleptomesochra. Huys (2009) made available Lang's (1936) Leptameira with Leptomesochra confluens Sars, 1911 as the type species, and included Mesochra macintoshi Scott & Scott, 1895b = Leptameira macintoshi (Scott & Scott, 1895b) comb. nov., Leptomesochra confluens Sars, 1911c = Leptameira confluens (Sars, 1911c) comb. nov., Leptomesochra infima Monard, 1928 = Leptameira infima (Monard, 1928) comb. nov., Leptameira attenuata Nicholls, 1939a = Leptameira attenuata (Nicholls, 1939a) comb. nov.; Leptomesochra nasuta Sewell, 1940 = Leptameira nasuta (Sewell, 1940) comb. nov., Leptomesochra hirsuta Wiborg, 1964 = Leptameira hirsuta (Wiborg, 1964) comb. nov., Leptomesochra theodoridis Soyer, 1966 = Leptameira theodoridis (Soyer, 1966) comb. nov., Leptomesochra eremeensis Kornev & Chertoprud, 2008 = Leptameira eremeensis (Kornev & Chertoprud, 2008) comb. nov., and Leptomesochra kunzi Kornev & Chertoprud, 2008 = Leptameira kunzi (Kornev & Chertoprud, 2008) comb. nov. [details]
3x5 C.B. Wilson Taxonomic Card - Interleptomesochra
 (from synonym Interleptomesochra Lang, 1965)3x5 C.B. Wilson Taxonomic Card - Leptomesochra To ITIS From editor or global species database
Image from typetaxon |
