Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Euchaetidae ( Famille )
            Paraeuchaeta ( Genre )
Paraeuchaeta prudens  Tanaka & Omori, 1968   (F)
Syn.: Pareuchaeta prudens Tanaka & Omori, 1968 (p.247, Descr.F, figs.F)
Ref.:
Bradford & al., 1983 (p.23); Park, 1994 (p.322); 1995 (p.41, Rem.F, figs.F)
Espèce Paraeuchaeta prudens - Planche 1 de figures morphologiquesissued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 1995, 29. [p.138, Fig.28].
Female: a, forehead (left side); b, urosome (left); c, d, e, f, genital somite (left, dorsal, right, ventral, respectively); g, Mx1 (first inner lobe separated), posterior; h, P1 (anterior); i, P2 (anterior).

Nota: Similar in habitus to P. eltaninae female but in lateral view rostrum more slender; urosome and genital somite more elongate.
Dorsal margin of genital somite in lateral view not conspicuously bulging and with a weak indentation at middle; posterior edge of genital field exte,ding for a shorter distance beyond posterior end of genital flange; sloping posterior margin of genital prominence as long as posterior ventral wall of somite. Dorsally, genital swelling centered a little anterior to middle of somite, followed by a marked constriction.
Cephalosomal appendages similar to those of P. eltaninae but in Mx1, 1st endopodal segment with 6 setae and outer lobe with 7 setae, the proximalmost of which smaller than the others, often being reduced to a very small seta.In P1 exopod, 2nd outer spine reaching base of 3rd and a little longer than 4th; 3rd outer spine about 1.5 times length of 5th.


Espèce Paraeuchaeta prudens - Planche 2 de figures morphologiquesissued from : O. Tanaka & M. Omori in Publs Seto Mar. Biol. Lab., 1968, XVI (4). [p.248, Fig.16]. As Pareuchaeta prudens.
Female: last thoracic segment and urosome (dorsal); B, genital complex (ventral); C, Mx1; D, P1; E, distal part of exopod of P2.

Nota: The urosome segments and furca are in the proportional lengths as 43:22:22:2:11 = 100.
Prosome and urosome are in the proportional lengths as 72 to 28.
Mx1 with 6 long setae on the outer lobe; endopod with 3+3+3 setae; 1st inner lobe with 13 setae; 2nd and 3rd inner lobes with each 1 seta; 2nd basal segment with 5 setae.


Espèce Paraeuchaeta prudens - Planche 3 de figures morphologiquesParaeuchaeta prudens Female:
1 - See key to species Groups and independent species of Paraeuchaeta (p.30): malayensis species Group.
2 - Outer spine of 2nd exopodal segment (or the 2nd of the first 2 exopodal segments forming a proximal, compound segment) of P1 normally developed (Fig.28-h).
3 - Outer lobe of Mx1 with 7 long setae in addition to 1 or 2 minute setae proximally (Fig.28-g).
4 - Genital somite without a conical process on left side close to anterior base of genital prominence (Fig.28-c).
5 - Dorsally and ventrally, genital somite symmetrical (Fig.28-d).
6 - Laterally, genital flange with normal posterior lobe (Fig.28-c).
7 - Laterally, genital somite with more or less smooth dorsal margin (Fig.28-c).
8 - Laterally, genital prominence with nearly straight or only slightly bulging posterior margin (Fig.28-c).
9 - Outer lobe of Mx1 with 7 long setae plus 1 or 2 very minute setae (Fig.25-d).
10 - Laterally, genital prominence with posterior margin equal to or longer than posterior ventral wall of somite (Fig.28-c).
11 - Laterally, posterior margin of genital prominence and posterior ventral wall of somite forming an angle of more than 140° (Fig.28-c).
12 - Laterally, genital genital prominence with posterior margin about as long as posterior ventral wall of somite (Fig.28-c).
13 - In P1 exopod, 2nd outer spine far short of reaching base of 3rd outer spine (Fig.28-h).

NZ: 6

Carte de distribution de Paraeuchaeta prudens par zones géographiques
Loc:
S Atlant., Japan (Aogashima Is.), Tasman Sea, off San Diego, E Pacif. (tropical)

Locality type: 32.457°N, 139.767°E.
N: 2
Lg.:
(3) F: 7,9-7,3; (63) F: 7,78; {F: 7,30-7,90}
Rem.: Park (1995,p.41) found this species off central Japan, in the Tasman Sea, off San Diego, the eastern tropical Pacific off Central America, and the South Atlantic.
Dernière mise à jour : 27/01/2015

 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 29 mars 2024]

© copyright 2005-2024 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