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Calanoida ( Order ) |
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Clausocalanoidea ( Superfamily ) |
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Stephidae ( Family ) |
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Stephos ( Genus ) |
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Stephos marsalensis Costanzo, Campolmi & Zagami, 1990 (F,M) | |
| | | | | | | Ref.: | | | Costanzo & al., 2000 (p.2008, figs.F,M); Vives & Shmeleva, 2007 (p.854, figs.F,M); S.Y. Moon & al., 2015 (p.31: Rem.); Brylinski & Courtot, 2019 (p.6, Rem. F, figs. F) |  issued from : G. Costanzo, M. Campolmi & G. Zagami in J. Plankton Res., 2000, 22 (10). [Figs.2, 3]. Female (from W Sicily): A, habitus (dorsal view); B, urosome (ventral); C, genital double-somite (right side); D, idem (left side); E, P5 (posterior view); F, P1; G, P2; H, P3, I, P4.
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 issued from : G. Costanzo, M. Campolmi & G. Zagami in J. Plankton Res., 2000, 22 (10). [Fig.4]. Male: A, habitus (dorsal view); B, urosome (ventral view); C, A1; D, P5.
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 Issued from : J.-M. Brylinski & L. Courcot in Bioinvasions Records, 2019, 8. [p.7, Fig.4]. Female (from 47°52'06''N, 03°55'00''W): A, ventral view of genital double-somite (DGS) and anterior surface of P5.>@ = asymmetry of postero-lateral corner of prosome; GO = genital operculum; B-C, right and left P5, respectively. Diagonal arrows = central spines. Scale bars: 100 µm (A); 10 µm (B-C). Nota: - Posterolateral corners of prosome slightly asymmetrical, left side more elongated than right side and compressed in distal part. - Urosome 4-segmented. - Genital double-somite with vental genital aperture closed off by single unarmed and asymmetrical operculum . Proximal part of ventral and lateral surfaces on right side with incomplete transverse row of spinules; left side and dorsal surface ornamented with patch of minute spinules. - P5 uniramous, 2-segmented, twisted posterioely and asymmetrical with right longer than left. Terminal part of segment 2 fringed by marginal spinules and ornamented with patch of spinules in middle of anterior surface, thicker on right leg. 1 very small central spine present distally to patch of spinules in both legs.
| | | | | Compl. Ref.: | | | Mazzocchi & Di Capua, 2010 (p.428); Rekik & al., 2012 (p.336, Table 1, abundance); Belmonte, 2018 (p.273, Table I: Italian zones) | | | | NZ: | 2 | | |
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Distribution map of Stephos marsalensis by geographical zones
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| | | | | | | Loc: | | | W Medit. (W Sicily: Marsala), Sfax (N Tunisia), NE Atlantic (Concarneau) | | | | N: | 5 | | | | Lg.: | | | (967) F: 0,76; M: 0,73; (1226) F: 0,90; {F: 0,76-0,90; M: 0,73} | | | | Rem.: | coastal; hyperbenthic.
Also collected, for the first time off the mediterranean Sea, in the inner storage tank of the Marinarium at Concarneau by Brylinski & Courtot (2019) at temperature and salinity: 14°C, 36.0 psu and , 12 °C, 35.0 psu; 18 °C, 35.5 psu, and 19 °C, 35.0 psu, respectively in November, April, September and July.
The species belongs to ''group IV'' (see genus Stephos) | | | Last update : 06/02/2020 | |
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 Any use of this site for a publication will be mentioned with the following reference :
Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed November 21, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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