Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Diaixidae ( Famille )
            Ranthaxus ( Genre )
Ranthaxus vermiformis  Markhaseva & Schulz, 2010   (F)
Ref.:
Markhaseva & Schulz, 2010 (p.17, figs.F)
Espèce Ranthaxus vermiformis - Planche 1 de figures morphologiquesissued from : E.L. Markhaseva & Schulz in Proc. Zool. Inst. RAS, 2010, 314 (1). [p.18, Fig.9].
Female (from 00°01'S, 02°29'W): A-B, habitus (dorsal and lateral, respectively); C, forehead (lateral); D, rostrum (ventral); E, posterior prosome and urosome (dorsal); F, same (lateral); G, genital double-somite (lateral); H, caudal rami (dorsal).
Scale bars: A-B = 0.1 mm.; C-H = 0.1 mm.

Nota :
- Cephalosome and pediger 1 fused, 4th and 5th fused ; posterior corners of prosome prolonged into short points
- Prosome 3.8 times as long as urosome.
- Rostrum well-developed bifurcate plate with filaments.
- Genital double-somite and urosome somites 2 and 3 with fringe of stout spinules along posterior borders .
- Caudal rami with 4 terminal plus 1 dorsolateral and ventral setae each, ventral seta located more laterally from medial edge of ramus.


Espèce Ranthaxus vermiformis - Planche 2 de figures morphologiquesissued from : E.L. Markhaseva & Schulz in Proc. Zool. Inst. RAS, 2010, 314 (1). [p.19, Fig.10].
Female: A, A1; B, same, segment 24 (ancestral segments XXVII-XXVIII); C, A2; D, Md (palp); E, Md (gnathobase); F, P5 (left, dorsal); G, P5 (right, lateral).
Scale bars 0.1 mm.

Nota:
- A1 24-segmented, slightly shorter than prosome.
- A2 : coxa with 1 seta ; basis with 2 setae ; endopodal segment 1 with 2 setae ; endopodal segment 2 with 13 setae ; exopod 8-segmented with 1, 3, 1, 1, 1, 1, 1, and 3 setae.
Md : gnathobase cutting edge with 8 teeth ; exopod 5-segmented ; endopod 2-segmented ; basis with 4 setae.


Espèce Ranthaxus vermiformis - Planche 3 de figures morphologiquesissued from : E.L. Markhaseva & Schulz in Proc. Zool. Inst. RAS, 2010, 314 (1). [p.20, Fig.11].
Female: A, Mx1; B, Mx1 (praecoxal arthrite); C, Mx2; D, Mx2 (endopod); E, P1.
Scale bars 0.1 mm.

Nota :
- Mx1 praecoxal arthrite with 9 terminal spines and 2 posterior setae ; coxal endite with 2 setae, coxal epipodite with 9 setae ; proximal basal endite with 4 setae, distal basal endite with 4 setae, 1 of which sensory ; endopod with 11 setae, 1 of which sensory ; exopod with 8 setae.
- Mx2 : praecoxal endite bearing 5 setae, coxal (previously considered as distal praecoxal) and basal endite (previously considerd as proximal and distal coxal endites) with 3 setae each, 1 of which worm-like sensory ; lobe of proximal endopodal segment (previously considered as proximal basal endite) with 4 setae, 2 of which worm-like. Endopod with 6 sensory setae, all worm-like, 4 long and 2 short. From which the etymology of the specific name derived from the Latin vermes meaning worm corresponding to the structure of all of the sensory setae on endopod.


Espèce Ranthaxus vermiformis - Planche 4 de figures morphologiquesissued from : E.L. Markhaseva & Schulz in Proc. Zool. Inst. RAS, 2010, 314 (1). [p.21, Fig.12].
Female: A, Mxp (setation of endopod not given); B, Mxp (endopod).
Scale bars 0.1 mm.

Nota : Mxp : Syncoxa with 1 worm-like seta on proximal praecoxal endite, this element long, reaching middle length of basis ; 2 setae on middle endite, 1 short sclerotized and 1 worm-like of medium size and 3 setae on distal praecoxal endite, of these 2 short sclerotized and 1 long worm-like seta, exceeding middle length of basis ; coxal endite with 3 setae. Basis with 3 medial setae and 2 distal setae (belonging to endopod and incorporated into basis), 1 of distal setae sensory and worm-like ; endopod 5-segmented with 4, 4, 3, 3+1, and 3 sclerotized plus 1 worm-like sensory setae on distal segment.


Espèce Ranthaxus vermiformis - Planche 5 de figures morphologiquesissued from : E.L. Markhaseva & Schulz in Proc. Zool. Inst. RAS, 2010, 314 (1). [p.22, Fig.13].
Female: A, P2 (anterior); B, P2 (endopod segment 2, posterior); C, P3 (posterior); D, P4 (right leg, coxa, basis, endopod segment 1 and exopod, posterior); FE, P4 (left leg, endopod segment 2-3).
Scale bars 0.1 mm.

NZ: 1

Carte de distribution de Ranthaxus vermiformis par zones géographiques
Loc:
Atlantic (00°01'S, 02°29'W)
N: 1
Lg.:
(1050) F: 1,2; {F: 1,2}
Rem.: above the sea bed (5058 m)
Dernière mise à jour : 30/07/2019

 Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :

Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 04 décembre 2021]

© copyright 2005-2021 Sorbonne Université, CNRS

Webmaster
Mentions légales et informations nominatives
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université

 

Version française
English version

 

Rechercher

Sur le WEB du CNRS

 


Copépodes planctoniques marins

Copépodes planctoniques marins

 

Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins