Cypricercus inermis ( Brady, 1904 )
publication ID |
https://doi.org/ 10.11646/zootaxa.3821.4.1 |
publication LSID |
lsid:zoobank.org:pub:E2792744-6620-40DA-83C7-7BC92E3B302C |
persistent identifier |
https://treatment.plazi.org/id/1231A341-540A-2E66-1DBB-CE0BFBABCCD4 |
treatment provided by |
Felipe (2021-06-09 21:26:49, last updated 2024-11-24 20:31:44) |
scientific name |
Cypricercus inermis ( Brady, 1904 ) |
status |
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Cypricercus inermis ( Brady, 1904) View in CoL
* 1904 Cypris inermis Brady : 125, pl. VIII. figs 44–49.
1910 Eucypris inermis —Daday: 167–169, pl. 9. figs 18–33.
1971 Tanycypris inermis —McKenzie: 172, 208.
2001 Cypricercus cuneatus —Martens: 62–64, 70.
2009b Cypricercus inermis — Savatenalinton & Martens: 2.
Diagnosis. L = 0.97–1.11 mm; H = 0.45–0.47; carapace in lateral view elongated. Length = 2.4 times height. Valves greyish-white. LV overlapping RV ventrally, LV longer than RV anteriorly, RV longer than LV posteriorly. Valve surface with shallow pits and thin setae. A1 with small Rome organ. T1 with a-, b- and d-seta.T2 with d1, which is twice as long as d2. CR stout with four groups of setulae on the ventral margin. CR attachment with Triebel loop in the middle, and a long, well developed vb ( Brady 1904; Savatenalinton & Martens 2009b). Hemipenis with triangular lateral shield and rounded distal and medial shields. Zenker organ long with 22 chitinous rosettes (for more details see Savatenalinton & Martens 2009b).
History. Brady (1904) named this species Cypris inermis and provided its first description. Daday (1910) transferred the species to the genus Eucypris . McKenzie (1971) reported the existence of Tanycypris inermis , which he found in a “small clear pool, formed by drippings of a spring in the near of (sic) Rydal Mount, Witsieshoek, Orange Free State ”. Martens (2001) transferred it to Cypricercus under the assumption of synonymy with Cypricercus cuneatus , a view, that was not followed in Savatenalinton & Martens (2009b), where Cypricercus inermis and Cypricercus cuneatus were treated as two separate species, which “can be distinguished from it [ C. cuneatus ] by the appearance of the unequal posterior valve margins, by the features of the caudal ramus and attachment and by the morphology of the hemipenis and the Zenker’s organ“ ( Savatenalinton & Martens 2009b).
Conclusion. This species differs from Tanycypris in the presence of a well-developed vb and of a long groove in LV in C. inermis . The width of the carapace is greater than one-third of the length in C. inermis and thus greater than in the genus Tanycypris ( Martens 2001; Savatenalinton & Martens 2009b).
Brady, G. W. (1904) On Entomostraca collected in Natal by J. Gibson. Proceedings of the Zoological Society of London, 1904 121 - 128. http: // dx. doi. org / 10.1111 / j. 1469 - 7998.1904. tb 08317. x
Daday, E. (1910) Die Susswasser-Mikrofauna Deutsch-Ost-Afrikas Lieferung 3. Zoologica Original-Abhandlungen aus dem Gesamtgebiete der Zoologie, 23, 113 - 176.
Martens, K. (2001) Ostracoda. In: Day, J., de Moor, I., Stewart, B. & Louw, A. (Eds.), Freshwater Invertebrates of Southern Africa. Vol. 3. Crustacea II Ostracoda, Copepoda & Branchiura. Water Research Commission, Pretoria, South Africa, 9 - 77.
McKenzie, K. G. (1971) Species List of South African freshwater Ostracoda with an appendix listing museum collections and some further determinations. Annals of the South African Museum, 57, 157 - 213.
Savatenalinton, S. & Martens, K. (2009 b) Redescription of the type species of Strandesia Stuhlmann, 1888 and Cypricercus Sars, 1895 (Crustacea, Ostracoda, Cypricercinae), with a description of a new species of Cypricercus from South Africa. Zootaxa, 2007, 1 - 42.
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Kingdom |
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Phylum |
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Class |
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SubClass |
Podocopa |
Order |
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SubOrder |
Podocopina |
SuperFamily |
Cypridoidea |
Family |
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SubFamily |
Cypricercinae |
Tribe |
Cypricercini |
Genus |
Cypricercus inermis ( Brady, 1904 )
Nagler, Christina, Geist, Juergen & Matzke-Karasz, Renate 2014 |
Cypris inermis
Brady 1904 |
Cypricercus cuneatus
Sars 1895 |
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