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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 krishnaswamyi Ummerkutty, 1963 (F,M) | |
| | | | | | | Ref.: | | | Ummerkutty, 1963 (p.19, figs.F,M); Humes & Smith, 1974 (p.130, Rem.) |  issued from : A.N.P. Ummerkutty in Bull. Dep. mar. Biol. Oceanogr., 1963, 1. [Pl.I, Figs.10-18]. Female: 10, habitus (dorsal); 12, Mxp; 13, Md (mandibular palp); 14, P1; 15, PP3; 18, urosome and posterior part of prosome (lateral). Nota: Ratio Prpsome: Urosome as 72:28. Head and 1st pediger segment separate, 4th and 5th separated. Urosome 4-segmented. Genital segment symmetrical. Relative lengths of urosomal segments and caudal rami 44.3:17.1:15.7: 5.8: 17.1 = 100. A1 26-segmented, reaching to posterior end of prosome. Male: 11, right A1; 16, P5; 17, right P5 (terminal part of exopod, enlarged). Nota: Right A1 geniculate, 23-segmented; the point of geniculation between 2th and 21th segments; posterior margin of the thirteenth segment is highly shortened, almost to a point, so that the segment is triangular; the 2ith segment carries a row of spinules arranged along its length towards anterior face.
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 issued from : A.N.P. Ummerkutty in Bull. Dep. mar. Biol. Oceanogr., 1963, 1. [Pl.II, Figs.1-7]. Female: A1; 3, P5; 4, P2 (endopod missing); 5, urosome (ventral); 6, A2; 7, Mx2. Nota: Length of the spine on inner distal margin of terminal exopodal segment of P5 almost double the length of the terminal spine (feature characteristic in this species). Male: 2, habitus (dorsal). Nota: Proportional lengths of urosomal segments and caudal rami 17.75: 23: 17.75:17.75:6: 17.75 = 100
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Distribution map of Ridgewayia krishnaswamyi by geographical zones
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| | | | | | | Loc: | | | S India (Gulf of Mannar) | | | | N: | 1 | | | | Lg.: | | | (518) F: 0,77; M: not furnished; {F: 0,77} | | | Last update : 29/10/2008 | |
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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 16, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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