Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Pseudocyclopoidea ( Superfamille )
        Boholinidae ( Famille )
            Boholina ( Genre )
Boholina parapurgata  Boxshall & Jaume, 2012   (F,M)
Ref.:
Boxshall & Jaume, 2012 (p.45, Descr. F,M, figs.F,M)
Espèce Boholina parapurgata - Planche 1 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.47, Fig.5].
Female (from 5°11.052'S, 122°35.159'E): A, habitus (dorsal); B, urosome (dorsal); C, genital double-somite and 1st free abdominal somite (ventral view showing paired gonopores and internal paired seminal receptacles [dotted lines]); D, posterior end of urosome, showing reduced, hoop-like anal somite (arrowed) entirely telescoped within preceding somite and concealed by extensive intersomitic membrane (dorsal).
Scale bars: 250 µm (A); 100 µm (B); 50 µm (C, D).

Nota: Cephalosoeme and 1st pedigerous somite separate, 4th and 5h pedigerous somites fused.
Postero-lateral corners of 2nd and 3rd pedigerous somites forming acute posteriorly-directed points.
Nauplius eye lacking.
Ratio of prosome to urosome length about 3:1.
Urosome 4-segmented: Genital-double somite and 2 free abdominal somites plus hoop-like anal somite (arrowed in fig.5D) largely telescoped within preceding 2nd free abdominal somite and entirely concealed beneath extensive somitic hyaline membrane.
Genital double-somite symmetrical, widest about mid-length; posterior border ornamented with smooth hyaline membrane dorsally and strongly dentate hyaline membrane ventrally; genital openings paired, located close together on mid-ventral surface; seminal receptacles paired, located lateral to and posterior to genital openings; 2 pairs of sensillae present, one pair positioned adjacent to medial margin of gonopores, second pair located ventro-laterally near posterior margin of double-somite.
2nd free abdominal somite with posterior margin hyaline membrane expanded mid^dorsally to form double-pointed flap functioning as pseudoperculum concealing anal opening.
Anal somite extremely short, concealed within posterior rim and hyaline membrane of 2nd free abdominal somite.
Caudal rami about 1.5 times longer than wide (measured from base to level of insertion of distal seta IV), with pointed dorsal process in middle of distal margin. Caudal setae II to VII present (seta I lacking); seta II spiniform, seta III about half length of seta VI, seta V longer than seta IV, both plumose; dorsal seta VII short, plumose; slight asymmetry noted with short row of tiny setules present distally on inner margin of left ramus.


Espèce Boholina parapurgata - Planche 2 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.48, Fig.6].
Female: A, A1; B, A2; C, Md.
Scale bars: 100 µm (A); 50 µm (B, C).

Nota: A1 symmetrical, extending almost to end of prosome, 24-segmented with all articulations expressed, except between segments II-IV and XXVI-XXVIII; segment 8 double comprising ancestral segments X and XI, but with articulation incompletely expressed.
A2 biramous, coxa short, basis , exopod 9-segmented, articulation between 4th and 5th segments incomplete, apical segment small, endopod 2-segmented.
Md with cutting edge of coxal gnathobase comprising about 10 short, cuspidate or simple teeth plus small dorsal spinulose seta; ventral-most teeth larger; palp biramous, basis, exopod indistinctly 5-segmented, endopod 2-segmented


Espèce Boholina parapurgata - Planche 3 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.49, Fig.7].
Female: A, Mx1; B, Mx2; C, Mxp.
All scale bars = 50 µm.

Nota: Mx1 with praecoxal arthrite carrying 10 marginal spines plus 4 stiff setae on posterior surface; coxal epipodite with 9 plumose setae; coxal endite with 4 spinulose setae; basis fused to both rami: armed with 4 spinulose setae on proximal endite, distal basal endite incorporated into segment, with 5 setae; basal exite represented by single vestigial seta; exopod bearing 10 marginal setae; endopod with 1st segment fused to basis, represented by 4 distal margin setae, 2 free segments armed with 4 and 7 setae respectively.
Mx2 6-segmented, comprising praecoxa and coxa, allobasis and 3^segmented free endopod.
Mxp 8-segmented with syncoxa, basis and free 6-segmented endopod. Syncoxa with 1, 2, 2, 3 setae on medial margin lobes; 1st lobes seta bilaterally spinulate; one seta on second lobe very long and naked, other seta plus setae on 3rd lobe sparsely bilaterally spinulate; 4th lobe setae naked; small patch of denticles present on medial surface of 4th lobe. Basis about as long as syncoxa, armed with 3 plumose setae carrying row of strong spinules along medial margin of segment. Free endopod setal formula: 2, 4, 4, 3, 3+1, 4.


Espèce Boholina parapurgata - Planche 4 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.50, Fig.8].
Female: A-E, P1 to P5, respectively (anterior views).
All scale bars = 50 µm.


Espèce Boholina parapurgata - Planche 5 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.46].
Female: Armature of legs P1 to P5 (Seta: Arabic numerals; Roman numerals: spine).


Espèce Boholina parapurgata - Planche 6 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.51, Fig.9].
Male: A, habitus (dorsal); B, same, lateral, showing pointed angles to tergites of pedigerous somites (arrowed) ; C, urosome (ventral).
Scale bars: 250 µm (A, B); 100 µm (C).

Nota: Postero-lateral corners of 2nd and 3rd pedigerous somites (arrowed in fig.9B) forming acute posteriorly-directed points (as in female).
Ratio of prosome to urosome length about 2.4: 1.
Urosome 5-segmented comprising genital somite and 3 free abdominal somites plus hoop-like anal somite largely telescoped within preceding somite and entirely concealed beneath somitic hyaline membrane (as in female).
Genital somite slightly asymmetrical, with single gonopore opening posterolaterally on left side.
Genital and 1st to 3rd free abdominal somites similar in length, although often variably telescoped within preceding somite; each with hyaline membrane around posterior border, except membrane lacking ventrally on genital somite.
Anus opening terminal, located between caudal rami, concealed beneath pseudoperculum formed by hyaline membrane on 3rd free abdominal somite.
Caudal rami symmetrical, about 1.7 times longer than wide and bearing distal spinous process dorsally (as in female). Caudal seta I absent, caudal setae II-VII, as in female.


Espèce Boholina parapurgata - Planche 7 de figures morphologiquesIssued from : G.A. Boxshall & D. Jaume in Zootaxa, 2012, 3150. [p.52, Fig.10].
Female: A, rostrum (ventral).

Male: B, geniculate right A1; C, P5 (posterior).

All scale bars = 50 µm.

Nota: A1 short, asymmetrical. Left non-geniculate, 24-segmented (as in female) and extending almost to posterior end of prosome. Right geniculate, 22-segmented.
P5 strongly asymmetrical; coxae and intercoxal sclerite fused to form common base. Left leg biramous: basis with slender outer basal seta located on posterior surface; exopod 3-segmented: 1st segment with long, bilaterally serrate outer spine; 2nd segment modified, bearing strongly reflexed spine on outer margin; 3rd segment highly transformed bearing multiple short processes and 1 long, naked, modified setal element. Right leg biramous, basis with slender outer basal seta located on posterior surface; exopod unsegmented; segment with 2 outer spines plus 1 short spine vestige located subdistally towards the medial surface; endopod forming an elongate lobe (3.6 times longer than wide); armed with 2 slightly sigmoid spines, apical (17-19 µm long) and subapical (12-13 µm long)

NZ: 1

Carte de distribution de Boholina parapurgata par zones géographiques
Loc:
Indonesia: Muna Island.

Type locality: 5°11.052' S, 122°35.159' E.
N: 1
Lg.:
(1177) F: 0,74-0,83; M: 0,66-0,71; {F: 0,74-0,83; M: 0,66-0,71}
Rem.: In sinkholes on the coast at the edge of Walengkabola village (Muna island, Indonesia)
Dernière mise à jour : 20/07/2015

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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 http://copepodes.obs-banyuls.fr [Accédé le 09 mai 2021]

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