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Calanoida ( Order ) |
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Arietelloidea ( Superfamily ) |
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Heterorhabdidae ( Family ) |
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Paraheterorhabdus ( Genus ) |
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Paraheterorhabdus ( Sub-Genus ) |
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Paraheterorhabdus (Paraheterorhabdus) illgi Park, 2000 (F,M) | |
| | | | | | | Syn.: | Heterorhabdus medianus (M) Park, 1970 (p.477, 525, figs.M, no F); Heptner, 1972 a (p.60) | | | | Ref.: | | | Park, 2000 (p.80, figs.F,M, Rem.) |  issued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.202, Fig.50]. Female (79,01°10'N, 11°36'W): a, habitus (left side); b, c, urosome (left, dorsal, respectively); d, forehead (dorsal); e, f, genital somite (left, ventral, respectively); g, masticatory edge of right Md (posterior); h, masticatory edge of left Md (posterior); i, left Mx2 (posterior); j, right Mxp (anterior). Nota: in left Md, ventralmost tooth about 2 times length of corresponding tooth on right Md; masticatory edge between 2nd and 3rd, ventralmost teeth flat with a small round swelling close to 3rd.
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 issued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.203, Fig.51]. Female: a, P1 (anterior); b, exopod of P2 (anterior); c, exopod of P3 (anterior); d, exopod of P4 (anterior); e, P5 (anterior). Male: f, P5 (endopods omitted), anterior; g, h, basipod of right P5 (anterior, posterior, respectively); i, exopod of left P5 (anterior); j, distal exopodal segments of left P5 (posterior).
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 Issued from : T. S. Park in Bull. Mar. Sc., 1970, 20 (2). [p.524, Figs.262-264]. As Heterorhabdus medianus. Male (from Caribbean Sea): 262, habitus (lateral left side); 263, idem (dorsal); 264, P5 (distal parts of endopods omitted), anterior). Nota: Posterolateral corner of metasome in dorsal view triangularly produced.
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 Paraheterorhabdus (Paraheterorhabdus) illgi female: 1 - Left caudal ramus distinctly longer than right and completely fused with anal segment (Fig.50-c) 2 - Dorsally, posterolateral corners of prosome angular (Fig.50-c). 3 - Laterally, 2nd urosomal somite (Fig.50-b) without a swelling along ventral margin. 4 - Laterally, posterior slope of genital prominence slightly convex (Fig.50-e). 5 - Genital somite about as long as wide (Fig.50-c). 6 - Ventrally, genital operculum (Fig.50-f) longer than wide.
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 Paraheterorhabdus (Paraheterorhabdus) illgi female: 1 - Left caudal ramus distinctly longer than right and completely fused with anal segment. 2 - Basis of right P5 with conical inner lobe (Fig.49-e). 3 - P5 with relatively slender exopods (Fig.51-f); medial projection of 2nd exopodal segment of right P5 without a lobe on distal side. 4 - Medial projection of 2nd exopodal segment of right P5 (Fig.51-f) fingerlike.
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Distribution map of Paraheterorhabdus (Paraheterorhabdus) illgi by geographical zones
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| | | | | | | Loc: | | | Atlant. (equatorial & S tropical), off G. of Guinea W, Caribbean Sea, NE Indian (equatorial), SW Indian, off New Guinea, Pacif. (tropical central), Salomon Is., Pacif. (NE & SE)
Type locality: 79,01°10'N, 11°36'W. | | | | N: | 2 | | | | Lg.: | | | (88) M: 2,52; (824) F: 3,56-2,84; M: 3; {F: 2,84-3,56; M: 2,52-3,00} | | | | Rem.: | This species is named in honour of Professor Paul L. Illg, specialist in parasitic copepods, well known at Laboratore Arago (Banyuls-sur-Mer, France).
After Park (2000, p.80) the species can be distinguished from the congeners by the relatively short ventralmost of the left Md; the 3rd lobe of Mx2 with a seta and spine of similar length, the 4th lobe with 2 spines of greatly different length, spines of the 5th and 6th lobes with long unserrated distal sections; the coxa of Mxp with a relatively long 1st posterior distal seta, and the basis with a proximal medial margin fringed with setules. The female is very characteristic, having a small and narrow genital operculum and the male having an elongate and slightly curved medial projection on the 2nd segment of the right exopod | | | Last update : 27/01/2015 | |
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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 24, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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