Fiche d'espèce de Copépode
Monstrilloida ( Ordre )
    Monstrillidae ( Famille )
        Caromiobenella ( Genre )
Caromiobenella polluxea  Jeon, Lee & Soh, 2018   (M)
Jeon & al., 2018 (p.51, Descr. M, figs.M, Rem.)
Espèce Caromiobenella polluxea - Planche 1 de figures morphologiquesIssued from : D. Jeon, W. Lee & H.Y. Soh in J. Crustacean Biol., 2018, , 38 (1). [p.54, Fig. 6]
Male (from 34°26'43.3''N, 126°21'57.3''E): A, habitus showing crater-like depressions (arrows) and dorsal mound with 2 pairs of pores (hollow arrow); B, habitus (arrows indicate crater-like depressions), lateral view; C, cephalothorax with P1, ventral view (le = lateral eye; ve = ventral eye)
Arabic numerals in A and B indicate pit-setae.
Scale bars in µm.

- Ratio of lengths of cephalothorax, metasome and urosome 38.6 (37.9-39.2) ; 38.1 (35.7-39.4) : 23.3 (21.7-25.1) in lateral view.
- Pseudoral cone with no apical pore situated in anterior ventral region between antennular bases and oral papilla.
- Dorsal medial half of cephalothorax slightly swollen, forming small mound with 2 pairs of pores.
- Oral papilla low, located ventrally at 36.2 % (33.0- 39.2) of distance from anterior end of cephalothorax.
- 2 lateral and 1 ventral eyes within anterior of forehead, moderately developed, pigmented; lateral eyes oval , 0.07 mm long, 0.06 mm wide, 0.05 mm apart across midline. Ventral eye round, smaller in diameter (0.05 mm) than lateral eyes.
- Body somites from first free pediger to fourth free pediger with several pore pairs in various regions; 1st free pediger with 3 pairs of pit-setae posteriorly (n° 6-8: 2 pairs laterally, other pair dorsally) plus pair of simple pores anterior to dorsal pair of pit-setae.
- Tergite of incorporated 1st pediger with 5 pairs of pit-setae: 1 pair situated dorsally (n°1), 4 pairs laterally (n°2-5)
- Length of A1 in relation to total body length 28.7 % (27.9-29.7).
- Branched setae absent, replaced by unbranched simple setae.
- Each caudal ramus with 5 plumose setae, outermost 2 (I, II) coarsely bipinnate. All caudal setae subequal in length except for noticeably shorter dorsal seta VI.

Espèce Caromiobenella polluxea - Planche 2 de figures morphologiquesIssued from : D. Jeon, W. Lee & H.Y. Soh in J. Crustacean Biol., 2018, , 38 (1). [p.55, Fig. 7]
Male: A, left A1 (dorsal view); B, urosome (lateral view); C, urosome showing genital opercular flaps (hollow arrows), medial protrusion (filled arrow), between lappets and asterisks on caudal rami indicate ventral pores, ventral view.
Scale bars in µm

- Genital shaft robust, 0.06 mm (0.064-0.066) long with genital opercular openings at distal end covered by 2 opercular flaps; pair of short, subtriangular distal lappets separated by posterior medial protrusion of shaft, each lappets with inner side corrugated, coarsely denticulate.
- Ratios of A1 segment lengths (from p^roximal to distal) 16.7 (15.8-17.3) : 19.7 (18.4-20.4) : 16.6 (15.8-17.1) : 22.6 (21.2-23.7) : 24.3 (23.5-25.4).
- Spine 6 on 5th segment of A1 naked.
- Spinous elements on first 3 A1 segments biserrate along outer margin. 4d 1-2, 4v3, relatively long, slender; spine 4v 1, 2 rather short, robust.

Espèce Caromiobenella polluxea - Planche 3 de figures morphologiquesIssued from : D. Jeon, W. Lee & H.Y. Soh in J. Crustacean Biol., 2018, , 38 (1). [p.56, Fig. 8]
Male: 4-D, P1 to P4 (anteriorv views) showing plunging distal margin of intercoxal sclerites (filled arrows) and inner distal bulging of bases (hollow arrows), asterisks indicate anterior pores.
Scale bar in µm.

- Inner distal corners of protopods of P1 to P4 bulging.
- Distal margin of intercoxalsclerites of all legs triangularly incised.
- Outermost seta on 3rd exopodal segments of legs with dense serration along inner margin.
- P5 absent, but at least 2 specimens out of 4, including holotype, with unilateral nipple-like protuberance on posterior ventral part of 1st urosomal somite (4th free pediger).

Espèce Caromiobenella polluxea - Planche 4 de figures morphologiquesIssued from : D. Jeon, W. Lee & H.Y. Soh in J. Crustacean Biol., 2018, , 38 (1). [p.58, Fig. 10]
Male (paratypes): A, P1 showing bulging inner distal corner of basis (arrow), left, posterior; B, P3 joined by intercoxal sclerite (filled arrow) and showing bulging inner distal corner of basis (hollow arrow), posterior; C, genital apparatus showing posterior protrusion (arrow), ventral; D, opercular flaps (arrows) on distal margin of genital shaft, ventral.
Scale bars in µm.

Espèce Caromiobenella polluxea - Planche 5 de figures morphologiquesIssued from : D. Jeon, W. Lee & H.Y. Soh in J. Crustacean Biol., 2018, , 38 (1). [p.57, Fig. 9, E-F]
Male: E, 4th antennular segment with setal elements (left side, ventral view); F, 5th antennular segment armed with naked distalmost spine 6 1, right side, dorsal view).
Scale bars in µm.

NZ: 1

Carte de distribution de Caromiobenella polluxea par zones géographiques
S Korea (Gogunmyeon)

Type locality: 34°26"43.3'' N, 126*21'57.3'' E.
N: 1
(1233)* M: 1,14-1,15 (mean = 1,14); {M: 1,14-1,15}
*: excluding the caudal rami .
Rem.: Collected by using a light trap from 20.00to 23.00 h.alongside a seawall (Yongho Seawall).
Dernière mise à jour : 17/09/2020

 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 [Accédé le 02 décembre 2021]

© copyright 2005-2021 Sorbonne Université, CNRS

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


Version française
English version



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