Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Aetideidae ( Famille )
            Chirundinella ( Genre )
Chirundinella magna  (Wolfenden, 1911)   (F,M)
Syn.: Chirundina magna Wolfenden, 1911 (p.241, figs.F); Park, 1978 (p.176, Rem.);
Pseudochirella magna : Sewell, 1929 (p.129, figs.F); 1947 (p.96, 97, figs.F); 1948 (p.329, 523, 524, 527, 539); Vervoort, 1949 (p.48, figs.M); 1963 b (p.151, Rem.); Grice & Hulsemann, 1967 (p.15);
Chirundinella cara Tanaka, 1957 b (p.197, figs.F); Grice & Hülsemann, 1967 (p.14, 23, fig.F, Rem.); Grice, 1969 a (p.454)
Ref.:
Tanaka, 1969 (p.265, figs.F, juv.M); Bradford & Jillett, 1980 (p.27); Vaupel Klein, 1984 a (p.51, figs.F, Rem.); Markhaseva, 1996 (p.135, figs. F,M); Chihara & Murano, 1997 (p.684, Pl.25: F); Bradford-Grieve & al., 1999 (p.879, 919, figs.F,M)
Espèce Chirundinella magna - Planche 1 de figures morphologiquesissued from : Tanaka O. in Publ. Seto mar. Biol., Lab., 1957, 6 (2). [Fig.57, p.198]. As Chirundinella cara.
Female (from Sagami): a, habitus (dorsal aspect); b, head (lateral aspect); c, last thoracic segment and genital segment (lateral aspect); d, anal segment and furca (dorsal aspect); e, cutting edge of Md.; f, Mx2; g, basal joints of Mxp.; h, P1; i, P2; j, endopodite and basal joints of P4.

Nota Female:
- Cephalothorax about 4.2 times the abdomen lengths (6 : 1.44).
- Head and 1st pedigerous segment separate, 4th and 5th thoracic segments fused.
- Posterolateral corners of the last thoracic segment regularly rounded.
- Rostrum with basal part robust.
- Abdomen 4-segmented; segments and caudal rami in proportional lengths 42 : 15 : 12 : 17 : 14 = 100.
^genital segment produced moderately ventrally.
- Caudal rami about as long as wide (12 : 11); appendicular seta aboutb 3 times as long as 2nd inner seta.
- A1 24-segmented; extends distal end of caudal rami by distal 3 segments; segments 3, 7, 9, 18 and 21 each furnished with a long seta.
- A2 endopod a little more than half the length of exopod (33 : 52).
- Md endopod 3/5 the length of exopod (25 : 42); 2nd basal segment with 2 inner marginal setae.
- Mx1 with 4 setae on the 2nd basal segment; 10 setae on endopod (14 in Chirundina; 14-15 in Pseudochirella and 10 in Undeuchaeta) thus the present specimen agrees with Undeuchaeta in the number of setae on endopod.
- Mxp with a slender 2nd basal segment; 2 proximal setae on 2nd basal segment very closely set together; there is a row of spinules along the proximal anterior margin of 2bd basal segment.
- P1 exopod 3-segmented, line of demarcation between 1st and 2nd exopodal segments distinct; outer edge spine of 3rd exopodal segment the longest.
- P2 outer edge spine of 3rd exopodal segment reaches the level of proximal spine of 3rd segment; terminal spine as long as the combined lengths of the 3 exopodal segments taken together, and has 30 serrations; endopod distinctly 2-segmented.- P4 with 1st basal segment (= coxa) a row of long bristles (about 10) on the inner margin near the base of of inner marginal seta; terminal spine of exopod with 22 serrations.
- P5 absent.


Espèce Chirundinella magna - Planche 2 de figures morphologiquesIssued from : W. Vervoort in Zool. Verh., Leiden, 1949, 5. [p.49, Fig.22]. As Pseudochirella magna.
Male (from Flores Sea): a, forehead (lateral); b, idem (dorsal); c, last thoracic segment with P5 and urosome (lateral right side); d, last thoracic segment and 1st and 2nd urosomal segments (lateralright side); e, idem (dorsal).

Nota:
- Head with a distinct but low crest, protruded forwards, slightly dilated in the oral region.
- The frontal organ is distinct.
- Rostrum very strong.
- Head and 1st thoracic segment fused, 4th and 5th fused.
- The abdominal segments and caudal rami in the proportional lengths 17 : 25 : 25 : 21 : 3: 9 = 100.
- The 1st abdominal segment with a distal swelling on the left lateral margin, 2nd with a minor swelling on the same side. 2nd to 4th abdominal segments are armed along their distal border with a row of very small, triangular spines.
- Anal segment almost completely telescoped into the 4th abdominal segment, on the ventral side with a patch of hairs.
- A1 (24 free segments) reaches the middle of the 4th-5th thoracic segments.
- The mouth parts and 1st to 4th pairs of legs agree fully with those of the female.


Espèce Chirundinella magna - Planche 3 de figures morphologiquesIssued from : W. Vervoort in Zool. Verh., Leiden, 1949, 5. [p.49, Fig.22]. As Pseudochirella magna.
Male (from Flores Sea): a, distal part of the abdomen and furca (dorsal view); b, P5.

Nota: The internal margins of the caudal rami are densely haired.


Espèce Chirundinella magna - Planche 4 de figures morphologiquesissued from : R.B.S. Sewell in The John Murray Expedition, 1933-34, Scientific Reports, VIII (1), 1947. [p.99, Fig.21]. As Pseudochirella magna.
Female (from Arabian Sea): A, forehead (lateral); B, urosome (lateral left side); C, Mxp.
Nota: The proportional lengths of the various segments of the body (cephalon to caudal rami) as 386:171:89:83:73:83:30:29:14:41:=1000. Forehead with a short median crest. Head and 1 st pediger segment fused, but the line of fusion can be clearly seen in the stained specimen, 4th and 5th fused. Posterior thoracic margin emarginate in the dorso-lateral region and rounded posteriorly. Anal segment with a tuft of hairs on the ventral aspect. A1 over-reaches the caudal rami by about the last three segments. A1 24-segmented (segments 8-9 fused, 24-25 separate). In Mx1 inner lobe 1 with 14 stout setae, inner lobe 2 with 4 setae, inner lobe 3 with 4 setae; basal segment 2 with 3 setae; endopod with 3, 3 and 5 setae; exopod with 11 setae; outer lobe with 9 setae. In Mx2 the basal segment bears on its posterior margin a nipple-like prominence; lobe 1 to lobe 5 each with 3 setae; endopod with 2, 1 and 3 setae from the various segment. In Mxp the proportional lengths of the two basal segments as 46 to 65.; the rounded prominence at the distal end of the 1st basal segment bears very fine spinules, from this lobe arise 3 setae and a forwardly-directed nipple-like prominence, which bears a very small blunt process. P4 bears a row of 13 fine needle-like spines on the 1st basal segment.


Espèce Chirundinella magna - Planche 5 de figures morphologiquesissued from : O. Tanaka in Publ. Seto Mar. Lab., 1969, XVII (4). [Fig.8].
Female (from off Peru): a, A2.


Espèce Chirundinella magna - Planche 6 de figures morphologiquesissued from : R.B.S. Sewell in Mem. Indian Mus., 1929, X. [p.130, Fig.49]. As Pseudochirella magna.
Female (from Laccadive Sea): a, Mx1; b, Mxp.


Espèce Chirundinella magna - Planche 7 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.242, Fig.27]. As Chirundina magna.
Female: a, A2; b, Mxp.


Espèce Chirundinella magna - Planche 8 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXVIII, Fig.10]. As Chirundina magna.
Female: 10, habitus (lateral).


Espèce Chirundinella magna - Planche 9 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXVIII, Figs.11-13]. As Chirundina magna.
Female: 11, Mx1; 12, P1; 13, P2.


Espèce Chirundinella magna - Planche 10 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.63, Fig.5, b].
Female: b, condition of the distal small seta on A1 segment 5.
Nota: modified, type II seta, thickened seta with thin, asymmetrical plumosy. (see Pseudochirella obesa p.63, fig.5,a)
Scale bar 0.05 mm.


Espèce Chirundinella magna - Planche 11 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.84, Fig.18, h, o].
Female: h, stage of fusion of endopodal segments 1-2+3 of P2 (rightleg, anterior face, drawn from posterior) (note: a nearly completelyfree suture); o, basipodal segment 1 of left P4 (posterior view) (note: bears a close group of 14 long, stout, spiniform hairs or 'spikes', in a disto-medial position).
Scale bars: q = 0.2 mm for h; p = 0.4 mm for o.


Espèce Chirundinella magna - Planche 12 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.78, Fig.15, i].
Female: i, fusion of exopodal segments 1 and 2 of P1 (left appendage, posterior view) (note: a completely free suture which exhibits no sign of fusion).
Scale bar 0.1 mm.


Espèce Chirundinella magna - Planche 13 de figures morphologiquesissued from : G.D. Grice & K. Hulsemann in Proc. U. S. natn. Mus., 1967, 122 (3583). [p.50, Fig.55]. As Chirundinella cara.
Female (from Indian Ocean): 55, head (lateral).

Nota: The only difference between this specimen and the description given by Tanaka (1957) are 11 rather 10 setae on the endopod of Mx1 and 3 rather 4 setae on the 5th lobe of Mx2.


Espèce Chirundinella magna - Planche 14 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.80, Fig.16, e, f].
Female: e, number, shape, and size denticles along the lateral edge od the terminal seta on exopdal segment 3 of P1; f, detail of the same seta.
Scale bar: 0.4 mm (e); 0.067 mm (f).


Espèce Chirundinella magna - Planche 15 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.69, Fig.9, f].
Female: f, 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; with 2 subequal, combined bipectinate/spinulose setae anteriorly) .
Scale bar: 0.2 mm.


Espèce Chirundinella magna - Planche 16 de figures morphologiquesissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.137, Fig.104].
Female (from Tanaka, 1969): Mx1.

Nota: Gnathobase with 9 claw-like terminal setae, 1 thinner short and 3 setae on the posterior surface. 2nd and 3rd internal lobes with 4 and 5? setae respectively. Protopodite near endopod base with with 4 setae.


Espèce Chirundinella magna - Planche 17 de figures morphologiquesissued from : Tanaka O. in Publ. Seto mar. Biol., Lab., 1957, 6 (2). p.197]. As Chirundinella cara.
Female A1: segments proportional lengths.
- A1 24-segmented.

Ref. compl.:
Guangshan & Honglin, 1984 (p.118, tab.); Heinrich, 1990 (p.16)
NZ: 9

Carte de distribution de Chirundinella magna par zones géographiques
Loc:
South Africa, off Tristan da Cunha Is., off E St. Paul Is., G. of Guinea, Caribbean Sea, Arabian Sea, Maldive Is., off Laquedive Is., off SW Sri Lanka, SW Indian, Indonesia-Malaysia, Japan (Sagami), Pacif. (W equatorial), off Peru, Pacif. (SE tropical).

Type locality: Japan (Sagami Bay).
N: 9
Lg.:
(10) F: 6,6-6; (11) F: 8; (14) F: 8,9-8; (29) F: 6,2; (41) M: 6,7; (56) F: 7,44; (105) F: 8,1; {F: 6,00-8,90; M: 6,70}
Rem.: méso à abyssopélagique.
Voir aussi les remarques en anglais
Dernière mise à jour : 18/04/2017

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2020. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 01 décembre 2020]

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