WoRMS name details
Interleptomesochra Lang, 1965
115194 (urn:lsid:marinespecies.org:taxname:115194)
unaccepted (junior subjective synonym after Huys (2009))
Genus
Interleptomesochra tenuicornis (Sars G.O., 1911) accepted as Leptomesochra tenuicornis Sars G.O., 1911 (type by original designation)
- Species Interleptomesochra attenuata (Scott A., 1896) accepted as Leptomesochra attenuata (Scott A., 1896) (Interleptomesochra Lang, 1965 is a junior subjective synonym of Leptomesochra Sars G.O., 1911)
- Species Interleptomesochra boguensis Lindgren, 1975 accepted as Leptomesochra boguensis (Lindgren, 1975)
- Species Interleptomesochra elongata (Bozic, 1955) accepted as Leptomesochra elongata Bozic, 1955
- Species Interleptomesochra eulitoralis (Noodt, 1952) accepted as Leptomesochra eulitoralis Noodt, 1952
- Species Interleptomesochra eulittoralis (Noodt, 1952) accepted as Leptomesochra eulitoralis Noodt, 1952 (unaccepted > misspelling - incorrect subsequent spelling, misspelling of species name)
- Species Interleptomesochra noodti Galhano, 1968 accepted as Leptomesochra noodti (Galhano, 1968)
- Species Interleptomesochra reducta Lang, 1965 accepted as Leptomesochra reducta Lang, 1965
- Species Interleptomesochra tenuicornis (Sars G.O., 1911) accepted as Leptomesochra tenuicornis Sars G.O., 1911
marine, brackish, fresh, terrestrial
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 
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Taxonomy From Huys (2009):
Lang (1965: 338) revised the genus Leptomesochra and subdivided it into three genera based on the...
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]
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: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=115194 on 2025-04-29
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Nomenclature
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 [request]
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 [request]
[request]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
[request]Other
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 [request]
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 [request]
[request]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
[request]
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]
