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Calanoida ( Order ) |
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Epacteriscoidea ( Superfamily ) |
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Ridgewayiidae ( Family ) |
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Ridgewayia ( Genus ) |
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Ridgewayia gracilis M.S. Wilson, 1958 (F,M) | |
| | | | | | | Ref.: | | | M.S. Wilson, 1958 d (p.147, figs.F,M); Humes & Smith, 1974 (p.130, Rem.) |  issued from : M.S. Wilson in Proc. U.S. nat. Mus., 1958, 108 (No. 3398). [p.151, Figs.1-13]. Female (from Dry Tortugas, SW Florida): 1, last thoracic segment and urosome (dorsal); 2, habitus (lateral); 3, detail of last thoracic segment (lateral); 4, rostrum (ventral) with frontal hairs; 5, P5 ( detail of endopod); 6, P5; 7, distal part of urosome and caudal rami (ventral); ; 8, genital segment (ventral), with detail of operculum; 9, P1; 10, Md (bitting edge); 11, Md; 12, P2 (exopod); 13, P4, with detail of marfginal armature of inner apical spine. Nota: Urosome 4-segmented; the genital segment the longest; the 4th segment very short, reduced to the width of the caudal rami, with which it is more or less fused medially, but clearly distinct outwardly; relative lengths of the segments and caudal rami (dorsal): 39.4:18.3:14.1:5.6:22.5 = 100.
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 issued from : M.S. Wilson in Proc. U.S. nat. Mus., 1958, 108 (No. 3398). [p.150]. Female: Setation of segments of A1. (s = seta; a = aesthete).
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 issued from : M.S. Wilson in Proc. U.S. nat. Mus., 1958, 108 (No. 3398). [p.153, Figs.14-27]. Female: 14, A1 (showing only segmentation); 15, A1 (segments 13-15); 16, A1 (segments 1-4); 17, Mx1 (enlarged); 18, Mxp; 19, Mx2; 20, Mxp; 21, A1 (apical segments 22-26). Nota: Number of setae on the lobes (numbered from proximal to distal lobes 1 to 6): apical setae: 4, 2, 2, 3, 4, 3; basal setae on lobes 1 and 6: 1, 2. Male: 22, right A1 (apical segments); 23, right A1 (segments 9-15); 24, left P5 (detail apex of exopod, anteromedial view); 25, idem (posterior view); 26, right P5 (detail of exopod and endopod, anterior view); 27, P5 (posterior view).
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 issued from : M.S. Wilson in Proc. U.S. Nat. Mus., 1958, 108 (No 3398). [p.154]. Armature of third segments of both rami of P1 to P4 in female (sp = spine; s = seta).
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Distribution map of Ridgewayia gracilis by geographical zones
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| | | | Loc: | | | Florida (SW) | | | | N: | 1 | | | | Lg.: | | | (516) F: 0,9-0,83; M: 0,8; {F: 0,83-0,90; M: 0,80} | | | Last update : 27/01/2009 | |
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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 April 26, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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