issued from : S. Nishida & I.F.M. Rumengan in Plankton Biol. Ecol., , 2005, 52 (1). [p.28, Fig.1]. Female (from 1°40'48''N, 125°04'12''E): A-B, habitus (dorsal and lateral, respectively); C, genital double-somite (ventral); D, A1; E, A2; F, Md. Nota : Rostrum with paired filaments. Cephalosome and 1st pediger somite separate, 4th and 5th fused withpaired rows of fine hairs along posteromedial margin. A1 symmetical, 22-segmented (segments 6-7 incompletely fused, the former with short spine), each segment except segments 6, 15, 16, 18-20 with aesthetasc ; segment 20 having modified seta with small teeth on medial margin. A2 : endopod 2-segmented ; exopod 4-segmented with 3rd segment inconspicuous and looking like membrane connecting 2nd and 4th segments. . Md endopod 2-segmented, 2nd segment with 9 setae and row of spinules on surface ; exopod 4-segmented ; cutting edge with seta on dorsal margin, 3 cuspidate teeth, smaller cuspidate teeth medially, and blunt molar-like processes ventrally. Proportional lengths of urosomites and caudal ramus 25 : 17 : 17 : 19 : 16 : 23 = 100 ; Genital double-somite, 1st and 2nd abdominal somites with row of triangular spinules on dorsoposterior margin. Ventral surface of genital double-somite with anterior, transverse row of spinules ; paired gonopores covered by broad genital operculum bearing a pair of short, posteriorly directed processes.
issued from : S. Nishida & I.F.M. Rumengan in Plankton Biol. Ecol., , 2005, 52 (1). [p.29, Fig.2]. Female: A, Mx1; B, Mx2; C, Mxp; D, P1 (posterior); E, P3 (posterior); F, P4 (posterior); G, P5 (posterior). Nota : Mx1 praecoxal arthrite with 9 strong and 6 finer setae ; coxa with 4 setae on endite and 9 setae on epipodite ; basis with 4 and 5 setae on proximal and distal endites, and with 1 seta on exite ; endopod 3-segmented with 4, 4 and 6 setae from 1st to 3rd segments ; exopod with 10 setae. Mx2 with 4 setae on 1st praecoxal endite ; 2nd praecoxal and 2 coxal endites each with 3 setae ; basis with 1 stout seta and 3 thinner setae ; endopod with 9 setae. Mxp praecoxa and coxa completely fused, endites with 0, 2, 3, 4 setae ; basis and 1st endopodal segment nearly fused, with 3 and 2 setae ; 2nd to 6th endopodal segments with 2, 2, 2, 3, 4 setae from proximal to distal ; 2 setae on 2nd segment bifurcated with modified branch. Legs 1-4 biramous with 3-segmented rami ; 1st and 2nd segments of both rami of legs 1-3, except leg 1 endopod, with spinules on inner distal margin. P5 uniramous and symmetrical ; basis with 1 seta, without spinules on distolateral margin ; exopod 3-segmented, 1st segment length ca. 3.0 times width, with distolateral seta ; 2nd segment with distolateral seta and distomedial process with serrate membrane on both margins ; 3rd segment spine-like with medial teeth and short proximomedial process.
issued from : S. Nishida & I.F.M. Rumengan in Plankton Biol. Ecol., , 2005, 52 (1). [p.30]. Female: Seta (Arabic numerals) and spine (Roman numerals) of the swimming legs P1 to P4.
issued from : S. Nishida & I.F.M. Rumengan in Plankton Biol. Ecol., , 2005, 52 (1). [p.30, Fig.3]. Male: A-B, habitus (lateral and dorsal, respectively); C, right A1; D, P5 (anterior); E, P5 (posterior). Nota : Proportional lengths of urosomites and caudal ramus 13 : 22 : 17 : 17 :13 : 18 =100. Genital somite with genital aperture on left posterolateral margin. 1st abdominal somite with ventral row of spinules ; 1st to 3rd abdominal somites with row of triangular spinules on whole of posterior margins. Appendage s similar to those of female , except right A1 and P5. Right A1 geniculate, 21-segmented ; each segment except segments 5-8, 10, 12, 17-20 with aesthetasc ; segments 6 and 7 incompletely fused ; segment 10 with curved spine. P5 asymmetrical, biramous, with two 1-segmented endopods, 2-segmented left exopod and 3-segmented right exopod ; coxa with row of spinules on both surfaces ; basis with distolateral row of spinules ; right leg : 1st segment of exopod with patch of spinules on medialmargin and 2 setae on anterior surface, Y-shaped distal spine with medial fork about two times longer than lateral, and short thick subdistal spinule ; 2nd exopod segment with distolateral serrate spine, with distolateral patch of spinules at base of spine, and posterior-surface seta ; 3rd segment with 1 medial and 1 lateral setae. Endopod bifurcate ; medial branch slender and much longer than lateral, with fine subdistal seta ; lateral branch thick with 5-6 blunt distal spinules, one of which with teeth on tip.Left leg : 1st segment of exopod with short distolateral spine ; 2nd segment with 3 medial and 1 anterior-surface setae, and with small distomedial process and thick distolateral spine extending well beyond distal tip of 2nd segment and curved laterally near tip ; lateral margin distal to this spine fringed with spinules. Endopod with distomedial rows of spinules.
Carte de distribution de Pseudodiaptomus sulawesiensis par zones géographiques
In Ramosus species group (hickmani subgroup). For Nishida & Rumengan (2005, p.31) the four species most closely related to P. sulawesiensis, i.e. P. ishigakiensis, P. marinus, P. philippinensis and P.australiensis, all exhibit the Type-III geographic patterns: a confined distribution mainly restricted to the West Pacific (see Walter & al., 2002). The other known species of the hickmani subgroup, i.e. P. ardjuna, P. hickmani, P. hypersalinus and P. jonesi , exhibit the Type-II pattern and are confined mainly to the Indian Ocean (Walter & al., 2002). On the basis of the known occurrence records, the five speciesof Type-III appear to be more-or-less endemic to their respective ranges within the West Pacific: from north to south, the neritic waters of Japan (P. marinus, excluding records of synanthropic introduction and those lacking information in species identifications).
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Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2012. - Diversité et répartition géographique chez les Copépodes planctoniques marins. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 24 mai 2013]