Species Card of Copepod
Calanoida ( Order )
    Epacteriscoidea ( Superfamily )
        Epacteriscidae ( Family )
            Minnonectes ( Genus )
Minnonectes melodactylus  Fosshagen & Iliffe, 2004   (F, M)
Ref.:
Fosshagen & Iliffe, 2004 (p.128, Descr.M, figs.M); 2007 (p.88, Descr.F, figs.F)
Species Minnonectes melodactylus - Plate 1 of morphological figuresissued from : A. Fosshagen & T.A. Iliffe in Sarsia, 2004, 89. [p.129, Fig.7].
Male (from Bahamas): A, habitus (lateral); B, Caudal rami (dorsal); C, rostrum (ventral); D, A1; E, labrum; F, A2; G, Md; H, Mx1; I, Mx2.

Nota : Body with ratio of prosome legth to urosome length 2 :1. Rostrum with 2 large processes far apart, each slightly rounded at tip and bearing long filament subdistally. Cephalosome and 1st pedigerous somite fused dorsally. Urosome 5-segmented, with only trace of anal somite ventrally. Dorsal posterior margin of 4th urosomite with undulate frill. Caudal rami apparently symmetrical and with plumose setae ; seta II long and slender, seta V longer than length of urosome.
Right A1 24-segmented with segments II-IV partially separated ; modified setae on proximal part up and including segment VII.
A2 with exopod slightly longer than endopod ; exopod indistinctly 8-segmented with segments 2 and 3 partially separated.
Labrum ornamented along margin from middle towards outer part with 3 to 4 coarse teeth, outermost teeth largest and with adjacent cylindrical projection, then cluster of spinules, scattered setules and 1 short cylindrical projection.
Md with gnathobase bearing strong bifid ventral-most tooth ; row of 4 major teeth and additional minor teeth connected, and dorsal unipinnate seta ; palp with much reduced 1-segmented endopod with 2 setae ; exopod normally developed.
Mx1 : praecoxal arthrite with 13 setal elements plus 3 short stout processes ; coxal endite and basal endites with 3, 2 and 1 setae, relatively, proximal basal endite elongate : coxal epipodite with 6 setae ; endopod with 2 small setae along inner margin and 4 terminal setae ; exopod slender with 8 unequal setae distributed evenly along outer margin, subterminal seta very small.
Mx2 : rounded endites on syncoxa and bearing relatively short and flexible setae, proximal endite with 4 setae and 1 short process ; basis with 4 setae and 1 short process ; basis with with 4 setae of unequal length and with different ornamentation ; endopod with 11 elements, of which 4 to 5 setae very long and strong, highly modified with black club-shaped rounded tips, fine setules along most of their length and with some proximal spinules.


Species Minnonectes melodactylus - Plate 2 of morphological figuresissued from : A. Fosshagen & T.A. Iliffe in Sarsia, 2004, 89. [p.131, Fig.8].
Male: A, Mxp; B-F, P1 to P5.

Nota : Mxp : minute seta on praecoxal endite, long setae on coxa smooth, 1 small seta on distal endite with bulbous base ; basis with 3 setae, proximal and distal ones of suequal length, middle seta short ; endopod appatrently 4-segmented with fusion of first two segments ; long seta on ancestral 1st segment with black, smooth and rounded distal part ; 7 long and strong setae along endopod modified in distal part, black, broadened, lamellate and with rounded tip.
P5 with both rami 3-segmented ; slightly asymmetrical.


Species Minnonectes melodactylus - Plate 3 of morphological figuresissued from : A. Fosshagen & T.A. Iliffe in Mar. Biol. Res., 2007, 3. [p.87, Fig.8, E-H].
Female (from Great Exuma Is.: Bahamas): E, habitus (lateral); F, caudal rami (dorsal); G, A1; H, P5.

NZ: 1

Distribution map of Minnonectes melodactylus by geographical zones
Loc:
NW Atlant. (Bahamas: Exuma Cays)
N: 1
Lg.:
(884) M: 1,57; (973): F: 1,76; 1,77; {F: 1,76-1,77; M: 1,57}
Rem.: Anchialine cave.
Last update : 17/01/2015
    to add your remark
  

 Any use of this site for a publication will be mentioned with the following reference :

Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed December 02, 2024]

© copyright 2005-2024 Sorbonne University, CNRS

Webmaster
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université

 

Version française
English version

 

Search

On the WEB of CNRS

 


Marine Planktonic Copepods

Marine Planktonic Copepods

 

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