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Fiche d'espèce de Copépode |
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Calanoida ( Ordre ) |
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Spinocalanoidea ( Superfamille ) |
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Spinocalanidae ( Famille ) |
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Methanocalanus ( Genre ) |
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Methanocalanus gabonicus Ivanenko, Defaye & Cuoc, 2007 (F,M) | |
| | | | | | | Ref.: | | | Ivanenko & al., 2007 (p.40, Descr.F,M, figs.F,M, Rem.: internal morphology) |  issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.41, Fig.1]. Female (from off Gabon): A-B, habitus (lateral and dorsal, respectively); C, forhead (ventral); D, A2. Nota: A1 24-segmented, extending to pedigerous segment 4. A2 endopod shorter than exopodLabrum and paragnaths forming a sort of robust oral cone protruding ventrally.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.42, Fig.2, A-B]. Female (SEM photos): A, anterior part of prosome (ventral); B, labrum paragnaths and mandibular gnathobases. Abbreviations: a1 = A1; a2 = A2; lb = labrum; pg = paragnath; gn = gnathobase of mandible. Nota: Labrum oroduced ventrally, distal part with a small row of small setules. Paragnaths: a pair of lobes on pedestal produced ventrally and ornamented with numerous setules.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.43, Fig.3]. Female: A, urosome (dorsal); B, A1 (segments 1-17); C, A1 (segments 18-24); D, Md (mandibular palp); E, Md (gnathobase). Nota: Gnathobase of Md elongate, masticatory edge with 8 teeth and 1 seta ( 3 strong teeth separated from 5 smaller teeth by a groove ornamented with setules); exopod 5-segmented, endopod 2-segmented.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.44, Fig.4]. Female: A, Mx1; A1, proximal basal endite of Mx1; B, Mx2; C, Mxp. Nota: Praecoxal Mx1 with 13 spines; coxal epipodite and coxal endite with 9 and 4 setae, respectively; 1st and 2nd basal endites each with 4 setae; endopod indistinctly 3-segmented bearing 2, 3 and 3 setae, distal segment with row of setules; exopod as a lobe fused to basis and bearing 8 unequal setae and row of setules.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.45, Fig.5]. Female: A, P1 (anterior); B, P2 (anterior); C, distal segment of exopod of P2 (anterior); D, P3 (anterior); F, inner coxal seta of P4 (anterior).
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.42, Fig.2, E, F]. Female (SEM photos): E, endopod of left P1 (anterior); F, lobe of endopod of right P1 (anterior view) (= Von Vaupel Klein's organ).
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.42, Fig.2, D]. Female (SEM photos): D, genital double-somite (ventral). Nota: genital operculum covered the genital atrrium, and laterallythe atrila slits.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.46, Fig.6]. Male: A-B, habitus (lateral and dorsal, respectively); C, anterior part of cephalosome (ventral). Abbreviations: a1 = A1; a2 = A2; gn = gnathobase of mandible; pm = mandibular palp; lm = labrum. Nota: labrum flat, not produced ventrally, with pair of distolateral bifid extension. Paragnaths absent.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.48, Fig.8]. Male: A, urosome (ventral); B, left A1 (segments 1-18); B, idem (segments 19-23) D, part of right A1 (two-sided arrows indicate homologous segments of right and left A1; E, A2; F, Md (mandibular palp). Nota: A1 asymmetrical; left A1 23-segmented; right A1 22-segmented (differs from left antennule in fusion of segments 19 and 20, shape of segments 13-18). Md gnathobase stylet-like, thin and tubiform, pointed and separated terminally; basis with 2 setae, 1st endopod unarmed, 2nd with 8 setae and row of minute spinules; exopod 5-segmented bearing 1, 1, 1, 1, and 2 setae.
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.49, Fig.9]. Male: A, Mx1; B, setae of coxal epipodite of Mx1; C, P1 (anterior).
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issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.49, Fig.9]. Male: A, Mx1; B, setae of coxal epipodite of Mx1; C, P1 (anterior).
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 issued from : V.N. Ivanenko, D. Defaye & C. Cuoc in Cah. Biol. Mar., 2007, 48. [p.51, Fig.10]. Male: A, Mx2; B, Mxp; C, P5 (posterior). Copepodd V male: D, P5. Nota: Armature of appendages except P5, similar with that of female.
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Carte de distribution de Methanocalanus gabonicus par zones géographiques
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| | | | Loc: | | | SE Atlant. (Gabon: continental margin) | | | | N: | 1 | | | | Lg.: | | | (974) F: 1,56; M: 1,57; {F: 1,56; M: 1,57} | | | | Rem.: | profondeur de l'échantillonnage: 3151-3155 m.
Voir aussi les remarques en anglais | | | Dernière mise à jour : 17/01/2015 | |
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 Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :
Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2024. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 18 avril 2024] © copyright 2005-2024 Sorbonne Université, CNRS
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