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CaRMS name detailsInterleptomesochra Lang, 1965
115194 (urn:lsid:marinespecies.org:taxname:115194)
unaccepted (junior subjective synonym after Huys (2009))
Genus
marine,
Taxonomy From Huys (2009):
Lang (1965: 338) revised the genus Leptomesochra and subdivided it into three genera based on the...
Taxonomy From Huys (2009): Lang (1965: 338) revised the genus Leptomesochra and subdivided it into three genera based on the endopodal segmentation of legs 3–4. In the genus Praeleptomesochra Lang, 1965 he grouped Leptomesochra africana (type by original designation) and Praeleptomesochra similis Lang, 1965, both of which display 3- segmented endopods in legs 3–4. He also referred Leptomesochra pygmaea to this genus in a postscript to his work (Lang 1965: 548). In the genus Leptomesochra he included species which exhibit 2-segmented endopods (Mesochra macintoshi, Leptomesochra nasuta, L. confluens, L. infima and Leptameira attenuata). Finally, in the genus Interleptomesochra Lang, 1965 he included species with a 2-segmented leg 3 endopod and a 3-segmented leg 4 endopod (Normanella attenuata, Leptomesochra tenuicornis, L. elongata, L. eulitoralis and Interleptomesochra reducta Lang, 1965) and fixed L. tenuicornis as the type species by original designation. However, the inclusion of N. attenuata in this genus effectively renders the generic name Interleptomesochra Lang, 1965 a junior subjective synonym of Leptomesochra. Hence, according to current ameirid systematics the generic concept of Leptomesochra Sars, 1911 in reality coincides with Lang’s (1965: 375) diagnosis of Interleptomesochra. In addition to the five species referred to this genus by Lang (1965) and which are listed above, Leptomesochra also includes two other species that were originally assigned to Interleptomesochra, i.e I. noodti Galhano, 1968 = Leptomesochra noodti (Galhano, 1968) comb. nov. and I. boguensis Lindgren, 1975 = L. boguensis (Lindgren, 1975) comb. nov. [details]
Walter, T.C.; Boxshall, G. (2025). World of Copepods Database. Interleptomesochra Lang, 1965. 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=115194 on 2026-07-06
Nozères, C., Kennedy, M.K. (Eds.) (2026). Canadian Register of Marine Species. Interleptomesochra Lang, 1965. Accessed at: https://www.marinespecies.org/CaRMS/aphia.php?p=taxdetails&id=115194 on 2026-07-06
Date action by
original description
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 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) [details] Available for editors additional source 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
Taxonomy From Huys (2009): Lang (1965: 338) revised the genus Leptomesochra and subdivided it into three genera based on the endopodal segmentation of legs 3–4. In the genus Praeleptomesochra Lang, 1965 he grouped Leptomesochra africana (type by original designation) and Praeleptomesochra similis Lang, 1965, both of which display 3- segmented endopods in legs 3–4. He also referred Leptomesochra pygmaea to this genus in a postscript to his work (Lang 1965: 548). In the genus Leptomesochra he included species which exhibit 2-segmented endopods (Mesochra macintoshi, Leptomesochra nasuta, L. confluens, L. infima and Leptameira attenuata). Finally, in the genus Interleptomesochra Lang, 1965 he included species with a 2-segmented leg 3 endopod and a 3-segmented leg 4 endopod (Normanella attenuata, Leptomesochra tenuicornis, L. elongata, L. eulitoralis and Interleptomesochra reducta Lang, 1965) and fixed L. tenuicornis as the type species by original designation. However, the inclusion of N. attenuata in this genus effectively renders the generic name Interleptomesochra Lang, 1965 a junior subjective synonym of Leptomesochra. Hence, according to current ameirid systematics the generic concept of Leptomesochra Sars, 1911 in reality coincides with Lang’s (1965: 375) diagnosis of Interleptomesochra. In addition to the five species referred to this genus by Lang (1965) and which are listed above, Leptomesochra also includes two other species that were originally assigned to Interleptomesochra, i.e I. noodti Galhano, 1968 = Leptomesochra noodti (Galhano, 1968) comb. nov. and I. boguensis Lindgren, 1975 = L. boguensis (Lindgren, 1975) comb. nov. [details] From editor or global species database
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