Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Diaptomoidea ( Superfamille )
        Pseudodiaptomidae ( Famille )
            Pseudodiaptomus ( Genre )
Pseudodiaptomus binghami  Sewell, 1912   (F,M)
Syn.: Schmackeria binghami : Marsh, 1933 (p.43, figs.F,M);
non Pseudodiaptomus binghami malayus Wellershaus, 1969 (p.262, figs.FM)
Ref.:
Sewell, 1912 (figs.F, Descr.F); 1919 (p.7, Rem.F,M); 1924 (p.786, fig.M, Rem.); 1932 (p.240); 1948 (p.367); Silas, 1972 (p.648); Pillai, 1976 (1980) (p.251, figs.F,M); Pillai, 1976 (1980) (p.251, figs.F,M); Ranga Reddy & Radhakrishna, 1982 (p.256, Redescr.F,M, figs.F,M); Dussart & Defaye, 1983 (p.31); Sarkar & al., 1986 (p.178); Walter, 1986 (p.132); 1986 a (p.503); 1987 (p.367); Mitra & al., 1990 (fig.3); Walter, 1994 (p.126, figs.F,M); Ramaiah al., 1996 (p.3); Ferrari & Dahms, 2007 (p.22, Rem. N); Santu K.S. & al., 2017 (p.5, figs.F, M, Rem.: genetic analysis)
Espèce Pseudodiaptomus binghami - Planche 1 de figures morphologiquesIssued from : R.B.S. Sewell in Rec. Indian Mus., 1912, 7. [Pl.XVII, Figs.8-11].
Female (from Bay of Bengal): 8, habitus (lateral left side); 9, P2; 10, P5; 11, caudal ramus.

Nota:
- Head and 1st thoracic segment fused, 4th and 5th fused.
- Posterior border of the thorax rounded and bears a small spine near the dorsal surface.
- Rostrum small and bifid.
- Abdomen 4-segmented; proportional lengths of urosomites and furca as 45 : 25 : 30 : 12 : 28; the 1st segment has 2 transverse rows of minute spines on its dorsal surface and a row of spines round the dorsal half of its posterior border; there is a small blunt projection on the ventral aspect, behind the genital opening.
- Caudal rami symmetrical and bear 5 setae, of which the third is considerably wider than the others and is spear-shaped.
- Terminal segment of the endopod of A2 with a row of sharp spines.
- P5 symmetrical.


Espèce Pseudodiaptomus binghami - Planche 2 de figures morphologiquesissued from : R.B.S. Sewell in Fauna of the Chilka Lake, 1924, 12. [Pl. XLV, Fig.2].
Male: P5


Espèce Pseudodiaptomus binghami - Planche 3 de figures morphologiquesIssued from : T. C. Walter in Hydrobiologia, 1994, 292/293. [p.126, Fig.2].
Female (from Chilka Lake, India): A, urosomal somites 1-2 (dorsal); B, tip of left caudal ramus showing thickened setae; C, P5 (anterior view).

Male: D, utosome (ventral); E, P5 (posterior view); F, P5 (anterior view); G, P5 of left exopodal segment 2 (posterior view); H-I, left basipod 2-exopod segment 2 variation.


Espèce Pseudodiaptomus binghami - Planche 4 de figures morphologiquesIssued from : T. C. Walter in Hydrobiologia, 1994, 292/293. [p.128, Table 2].
Morphological features of Pseudodiaptomus binghami from India and Bangladesh;
Compare with P. lobipes and P. mixtus.


Espèce Pseudodiaptomus binghami - Planche 5 de figures morphologiquesIssued from : T. C. Walter in Hydrobiologia, 1994, 292/293. [p.128, Table 1].
Pseudodiaptomus binghami from India: Sex, number of specimens measured, total body length range, mean total body length, mean prosome length, mean urosome length and prosome/urosome ratio of lengths.
Compare with the two species in India and Bangladesh P. lobipes and mixtus.


Espèce Pseudodiaptomus binghami - Planche 6 de figures morphologiquesIssued from : Y. Ranga Reddy & Y. Radhakrishna in Hydrobiologia, 1982, 87. [p.258, Plate I].
Female (from 16°32'- 16°47'N; 81°4'-81°22'E): 1, habitus (dorsal with egg sacs (each with about 11 eggs); 2, same (lateral); 3, posterior part of prosome and urosome (dorsal); 4, genital area; 5, A1 and rostrum; 6, A2; 7, Md; 8, Mx1; 9, Mx2; 10 & 10a, Mxp and its modified seta; 11, P5.

Nota: Proportional lengths prosome and urosome 64:36.
- Head and 1st pedigerous segment fused, 4th and 5th pedigerous segments fused.
- Rostrum consists of 2 filaments, short.
- Posterolateral corners of prosome rounded with a dorsal spine.
- Urosome 4-segmented plus caudal rami proportional lengths 31 : 15 : 21 : 9 : 22.
- Genital segment symmetrical and has on the dorsal surface minute spines, arranged in 4 transverse rows; the 1st row interrupted in the middle with about 10 spines on either side; the 2nd row discontinuous laterally; the spines of these 2 rows smaller than those of the following rows; the 3rd row complete with about 8 relatively large spines on either side; the 4th row, like the first one, broken in the middle having about 6 somewhat large spines on either side.
- Caudal rami symmetrical, divergent and slightly over 3 times as long as broad with hairy inner margins; each ramus with 5 unjointed setae, of which the middle one dilated and spear-shaped. In addition, a small sensory bristle lies between the 4th and 5th setae.
- A1 21-segmented, reaching nearly up to the posterior margin of the genital segment.
- A2 biramous, basipodite with 5 lateral setae, and 3 minute spines at its distal internal corner; exopodite ubsegmented with 7 terminal and 8 subterminal setae, and a row of minute spines along its distal internal border; endopodite 4-segmented with 1, 4, 3 and 4 setae respectively.
- Md gnathal lobe chitinized with 9 or 10 teeth and a fine seta; basipodite large with 4 inner marginal setae; exopodite indistinctly 4-segmented with 1, 1, 1 and 3 setae respectively; endopodite 2-segmented with 4 and 8 setae.
- Mx1 precoxa with 16 spiniform setae; coxal and basal endites with 4 setae each; basipodite with 5 setae; exopodite unsegmented with 9-10 setae; basal exite absent, coxal exite with 8 strong and 1 slender setae; endopodite 3-segmented with 4, 4 and 6 setae respectively.
- Mx2 precoxa and coxa fused, each having 2 endites with 3 setae each; basis has 2 unequal endites, the proximal one larger with 3 setae while the distal smaller with 2 setae; endopodite vaguely 3-segmented with 1, 1 and 3 setae.
- Mxp 6-segmented, the proximal 2 segments much larger than the distal ones. The 1st segment with 8 setae, in addition, it has a strong spine, sharply bent over the segment; the distal internal corner of the segment spinulose .
- P5 both the left and right legs identical, uniramous and 4-segmented; basis slightly broader than coxa, with a ledge on the inner margin and a few spinules on the distal outer region.; exopodite 1 cylindrical and longer than the rest, having a strong internally serrated spine at the distal external angle, and a short blunt spinous process with a hyaline lobe at the distal internal angle; exopodite 2 bears 4 strong, serrated spines, of which 3 short and 1 longer than the combined length of basis and exopodite 1.


Espèce Pseudodiaptomus binghami - Planche 7 de figures morphologiquesIssued from : Y. Ranga Reddy & Y. Radhakrishna in Hydrobiologia, 1982, 87. [p.259, Plate II, 12-15].
Female: 12, P1; 13, P2; 14, P3; 15, P4.


Espèce Pseudodiaptomus binghami - Planche 8 de figures morphologiquesIssued from : Y. Ranga Reddy & Y. Radhakrishna in Hydrobiologia, 1982, 87. [p.257].
Female: The length-width proportions of the caudal ramus and setae (counted from outside).


Espèce Pseudodiaptomus binghami - Planche 9 de figures morphologiquesIssued from : Y. Ranga Reddy & Y. Radhakrishna in Hydrobiologia, 1982, 87. [p.259, Plate II, 16-19b].
Male: 16, habitus (lateral); 17, posterior part of prosome and urosome (dorsal); 18, Right A1; 19, P5 (anterior view); 19a & 19b, exopodite 2 of left P5.

Nota: Left A1 as in the female except for the aesthetasc on segment 3 stalked and comparatively longer, extending up to 9th segment. Right A1 modified, consisting of 21 segments; geniculation lies between segments 18 and 19; segments 8-12 narrow, segments 13-17 moderately dilated; a hooked spine on the segment 10, an unarmed tooth-plate on segment 17, fine needle-like spines along the margin of segment 18, and fine, slightly curved teeth along the proximal part of segment 19, segments 20 and 21 fused and ending in a knoblike process with 5 setae and 1 aesthetasc.
- Urosome of 5 segments plus caudal rami have the proportional lengths 10.5 : 20.0 : 16.0 : 18.5 : 8.0 : 22.0. 1st urosomal segment somewhat broad midway, with a minute spine on either side.
- The dorso-posterior border of the 2nd, 3rd and 4th segments with a transverse row of fine spines.
- Caudal rami and setae as in the female, the only difference being that the middle caudal seta quite normal ; all the setae jointed and slenderer than in female.


Espèce Pseudodiaptomus binghami - Planche 10 de figures morphologiquesIssued from : K.S. Santu, S. Bijoy Nandan, R.I. Cleetus & M. Harikrishnan in Mitochondrial DNA Part A, 2017. [p.6, Figs. 9, 10].
Female;: fig.9, habitus (lateral view); fig.10, urosome (lateral view).

Nota:
- Prosome : Urosome ratio 60 : 40.
- Prosome 1.29 times longer than broad (9.5 : 1.6).
- Urosome 4-segmented with caudal rami. Proportional lengths of urosomal segments plus caudal rami
- 33 : 16 : 19 : 11 : 21 = 100..
- Genital segment symmetrical; provided with pair of outwardly projecting sutures and 4 transversaly arranged rows of minute spines on dorsal surface.
- Caudal rami 3.14 times long as wide with hairy inner margins; each ramus bearing 5 unsegmented setae, of which muddle one dilated aznd spear-head-shaped; small sensory bristhe lying between 4th and 5th setae
- A1 21-segmented, reaching to posterior margin of genital segment.


Espèce Pseudodiaptomus binghami - Planche 11 de figures morphologiquesIssued from : K.S. Santu, S. Bijoy Nandan, R.I. Cleetus & M. Harikrishnan in Mitochondrial DNA Part A, 2017. [p.6, Fig. 11.
Female: P5 (dorsal view).
Scale bar in mm.

Nota:
- P5 consisting of coxa basis,, exopodal segments 1 and 2; left and right legs identical and uniramous; basis with ledge on inner margin and furnished with few spinules on distal outer region; exopodal segment 1 with strong internally serrate spine at distal external angle and short, blunt spinous process with hyaline lobe at distal internal angle; distal external margins furnished with small row of spinules just behind above mentioned serrate spine; exopodal segment 2 with 4 strong serrate spines, one of which longer than other 3 short ones


Espèce Pseudodiaptomus binghami - Planche 12 de figures morphologiquesIssued from : K.S. Santu, S. Bijoy Nandan, R.I. Cleetus & M. Harikrishnan in Mitochondrial DNA Part A, 2017. [p.7, Figs. 12, 13].
Male: fig.12, habitus (dorsal view); fig.13, urosome (dorsal view).

Nota:
- Prosome : Urosome ratio 59 : 41.
- Urosome 5-segmented plus caudal rami; length proportions 16 : 18 : 18 : 18 : 10 : 20 = 100.
- Caudal rami and caudal setae as in female except that middle setae normal; all setae joined and more slender than in female.


Espèce Pseudodiaptomus binghami - Planche 13 de figures morphologiquesIssued from : K.S. Santu, S. Bijoy Nandan, R.I. Cleetus & M. Harikrishnan in Mitochondrial DNA Part A, 2017. [p.7, Fig.14].
Male: P5 (ventral view).
Scale bar in mm.

Nota: - P5 as described by Ranga Reddy & Radhakrishna (1982).


Espèce Pseudodiaptomus binghami - Planche 14 de figures morphologiquesIssued from : K.S. Santu, S. Bijoy Nandan, R.I. Cleetus & M. Harikrishnan in Mitochondrial DNA Part A, 2017. [p.8, Table 3].
Morphological characteristics of female specimen of P. malayalus with previous record of P. malayalus and P. binghami. (specimen from Nambur canal, Andhra Pradesh, India).

Ref. compl.:
Madhupratap & Haridas, 1986 (p.105, tab.2)
NZ: 1

Carte de distribution de Pseudodiaptomus binghami par zones géographiques
Loc:
India, Cochin (Vembanad estuarine system), Burhabalanga estuary, Chilka Lake, Nagarjuna University Reservoir, W Bengal (Mandarmani creek, Hooghly estuary), Rangoon Riv. (estuary), Andaman Is.
N: 12
Lg.:
(81) F: 1,3; (83) M: 0,86; (1005) M: 0,91; (1190) F: 0,97-1,28; M: 0,82-0,95; (1193) F: 1,09-1,18; M: 0,85-0,91; (1211) F: 1,23-1,29; M: 0,86-0,90; {F: 0,97-1,3; M: 0,82-0,95}
Rem.: saumâtre, limnique, estuaire.
Incomplete data.
Voir aussi les remarques en anglais
Dernière mise à jour : 18/12/2017

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

Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2020. - Diversité et répartition géographique chez les Copépodes planctoniques marins. Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 28 septembre 2020]

© copyright 2005-2020 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