Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Aetideidae ( Famille )
            Euchirella ( Genre )
Euchirella pseudotruncata  Park, 1975   (F,M)
Syn.: Euchirella splendens (M) : Grice, 1969 a (p.453, figs.M)
Ref.:
Park, 1975 (p.291, figs.F,M); 1976 a (p.115, figs.F,M); Bradford & Jillett, 1980 (p.33); Vaupel Klein, 1980 (p.153); 1984 a (p.43, Table II: characters, fig.F); Markhaseva, 1996 (p.163, figs.F,M)
Espèce Euchirella pseudotruncata - Planche 1 de figures morphologiquesissued from : T. Park in Contr. Mar. Sci., 1976, 20. [p.115, Fig.6].
Female: a, forehead (lateral); b, c, posterior part of metasome and urosome (dorsal, lateral, respectively); d, A2; e, coxa of fourth leg (posterior).

Male: f, forehead (lateral); g, fifth pair of legs (anterior); h, distal part of left fifth leg (anterior); i, idem (posterior).


Espèce Euchirella pseudotruncata - Planche 2 de figures morphologiquesissued from : G.D. Grice in Bull. mar. Sc., 1969, 19 (2). [p.450, Figs.35-48]. As Euchirella splendens.
Male (from Carubbean Sza & G. of mexico): 35, habitus (lateral left side); 36, forehead (lateral); 37, A2: 38, Mx1; 39, Mx2; 40, Mxp; 41, P1; 42, P2; 43, P3; 44, P4: 45, P5; 46, distal end of left P5 (enlarged); 47, P5 (other side); 48, distal end of left P5 (other side, enlarged).
Nota: Presence of a prominent spinous process on the proximal end of endopod of right P5. Terminal portion of left P5 with a small spinelike point and numerous small rounded knobs.


Espèce Euchirella pseudotruncata - Planche 3 de figures morphologiquesissued from : T. Park in Crustaceana, 1975, 28 (3). [p.292, Fig.1].
Female (from Gulf of Mexico): A-B, habitus (dorsal and lateral, respectively); C-D, posterior par of body (dorsal and lateral, respectively); E, forehead (lateral); F, A2; G, P1 (anterior); H, P2 (anterior); I, basipod of P4 (posterior).


Espèce Euchirella pseudotruncata - Planche 4 de figures morphologiquesissued from : T. Park in Crustaceana, 1975, 28 (3). [p.293, Fig.2].
Male: A-B, habitus (dorsal and lateral, respectively); C, P5 (anterior); D, distal part of left P5 (anterior); E, idem (posterior).
Nota: P5 consisting of a small, uniramose left leg and a well developed, biramose right leg; right basipod reaching about middle of 1st exopodal segment; right endopod unsegmented, tapering into a curved spiniform process, with a prominent tooth-like process close to proximal end; right exopod 2-segmented, proximal segment with a large tooth-like process at a level immediately posterior to the tooth-like process on endopod; distal segment tapering into a curved spiniform process, with its internal margin finely serrated. In left leg of P5 endopod lacking; exopod 3-segmented, last segment small with 3 or 4 small tooth-like processes distally, and together with distal part of 2nd segment (immovable finger), forming a small chela; immovable finger of the chela slightly longer than movable finger (3rd segment).


Espèce Euchirella pseudotruncata - Planche 5 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.76, Fig.14, i].
Female: i, arrangement of spinules on the lateral tubercle of ebdopod of P1 (note: spinules approximately equal size, and arranged in a close group).
Scale bar 0.067 mm.


Espèce Euchirella pseudotruncata - Planche 6 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.78, Fig.15, l].
Female: i, fusion of exopodal segments 1 and 2 of P1 (left appendage, posterior view).
Nota: Only very faint indications of the former suture are occasionally found in individual specimens of most species of Euchirella, and then mainly on the anterior face of the combined segment.
Scale bar 0.1 mm.


Espèce Euchirella pseudotruncata - Planche 7 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.69, Fig.9, g].
Female: g, complement of terminal setae on the 2nd inner lobe of basipodal segment 1 of right Mx1 (details of right appendages in anterior view; to the posterior side 2 relatively stout setae are always present, which are combined bipectinate and spinulose; usual Euchirella differentiation in 2 subequal anterior setae: the distal seta bipectinate/spinulose, the proximal one spinulose only).
Scale bar: 0.2 mm.


Espèce Euchirella pseudotruncata - Planche 8 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.76, Fig.14, g].
Female: g, arrangement of spinules on the lateral tubercle of endopod of right P1 .
Scale bar: 0.067 mm.
Nota: Spinules approximately equal size, and arranged in a close group.


Espèce Euchirella pseudotruncata - Planche 9 de figures morphologiquesEuchirella pseudotruncata female: 1 - Genital segment slightly asymmetrical.
2 - Crest absent.
3 - Genital segment with left lateral swelled (dorsal view).
4 - Coxopodite of P4 with 1 spine.
5 - Posterior border of genital segment without projection on the right. The projection of left lateral margin of segment, occupying nearly all segment' length (dorsal view).
6 - Genital segment without ear-like projections.


Espèce Euchirella pseudotruncata - Planche 10 de figures morphologiquesEuchirella pseudotruncata male:
1 - P5 uniramous on left P5 and large biramous on right P5. Exopodal segment 2 and endopod of right P5 elongated and sharpened in their distal parts forming tongs. Endopod of right P5 significantly exceeding distal border of exopodal segment 1 of right P5.
2 - Crest absent.
3 - No spine present near place wherefrom exopod of right P5 begins.
4 - Left P5 without rudimentary endopod. When closed tongs of exopod of left P5 compact, rounded, clavate-like.
5 - Proximal part of exopodal segment 1 of right P5 with 1 big tooth.
6 - Proximal part of endopodal segment 1 of right P5 with robust tooth.


Espèce Euchirella pseudotruncata - Planche 11 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.66, Fig.7, b].
Euchirella pseudotruncata a, A2 arrangements of spinules and hairs on the posterior edge of endopodite 2+3 (right appendage of medial view ): distal spinules.


Espèce Euchirella pseudotruncata - Planche 12 de figures morphologiquesIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II].
Euchirella pseudotruncata Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).


Espèce Euchirella pseudotruncata - Planche 13 de figures morphologiquesIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.94, Table II (cont' d) ].
Euchirella pesudotruncata Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).


Espèce Euchirella pseudotruncata - Planche 14 de figures morphologiquesIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.95, Table II (cont' d) ].
Euchirella pseudotruncata Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).

Ref. compl.:
Suarez-Morales & Gasca, 1998 a (p107); Lopez-Salgado & al., 2000 (tab.1); Lapernat, 2000 (tabl.3, 4)
NZ: 2

Carte de distribution de Euchirella pseudotruncata par zones géographiques
Loc:
Gulf of Mexico, Caribbean Sea, Sargasso Sea, off NE Cape Verde Is.

Type locality: Gulf of Mexico.
N: 6
Lg.:
(225) M: 3,60-3,48; (235) F: 4,66-4; M: 3,8-3,32; (236) F: 4,66-4,3; M: 3,8-3,64; (1257) F: 4,2-4,3; {F: 4,00-4,66; M: 3,32-3,80}
Rem.: épi-bathypélagique.
Voir aussi les remarques en anglais
Dernière mise à jour : 22/02/2021

 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 13 avril 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