Species Card of Copepod
Calanoida ( Order )
    Arietelloidea ( Superfamily )
        Arietellidae ( Family )
            Paramisophria ( Genus )
Paramisophria platysoma  Ohtsuka & Mitsuzumi, 1990   (F,M)
Ref.:
Ohtsuka & Mitsuzumi, 1990 (p.88, figs.F,M, organes cuticulaires); Huys & Boxshall, 1991 (p.49); Ohtsuka & al., 1994 (p.158,160); Chihara & Murano, 1997 (p.720, Pl.: 54: F,M)
Species Paramisophria platysoma - Plate 1 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.89, Fig.1]. Female (from Tanabe Bay): A, habitus (dorsal); B, rostrum ventral view); C, 5th toracic segment (lateral right side); D, 5th thoracic segment with P5 and urosome (lateral left side); E, F, urosome (ventral; copulatory pores indicated by arrows; E: holotype, F: paratype); G, left A1 (all elements omitted); H, right A1 (all elements omitted); I, right A2; J, left A2.
Nota: Prosome considerably asymmetrical with left side compressed and right one smoothly curved in dorsal view. Head and 1st thoracic segment separated, Th4 and Th5 fused. Urosome 4-segmented. Genital segment asymmetrical, with right ventro-lateral and left ventral oviduct openings; copulatory pore located on left ventro-lateral side. left A1 longer than right; both 21-segmented. Antennae 2 asymmetrical. Md symmetrical


Species Paramisophria platysoma - Plate 2 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.90, Fig.2]. Female: A, Md; B, Mx1; C, Mx2; D, Mxp.
Nota: Md symmetrical; gnathobase with 4 teeth; endopod absent; exopod 4-segmented. Mx1 symmetrical; gnathobase with 4 teeth and short pointed process; 1st outer lobe bearing 8 setae; endopod bulbous, bearing 2 small setae of unequal lengths; exopod fused with basipod 2, bearing 3 plumose setae. Mx2 symmetrical (similar in armature to that of P. itoi); 5th inner lobe having a strong spine


Species Paramisophria platysoma - Plate 3 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.91, Fig.3]. Female: A, P1 (posterior); B, P2 (posterior); C, P3 (anterior); D, P4 (posterior); E, P5 (anterior); F, basipods of P5.


Species Paramisophria platysoma - Plate 4 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.92, Fig.4]. Male: A, habitus (dorsal); B, idem (lateral left side); C, left A1 (all elements omitted); D, right A1 (all elements omitted); E, F, P5 (anterior view; E: paratype, F: allotype).
Nota: Prosome asymmetrical as in female. Urosome 5 segmented. Left A1 geniculate, 20-segmented (segments 16 and 17 bearing low lamella along anterior margin, segment 18 with 2 low lamellae anteriorly, terminal 2 segments incompletely fused, articulation between segments 17 and 18; right A1 21-segmented.

Remarks: Legs 5 of both sexes vary morphologically.


Species Paramisophria platysoma - Plate 5 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.94, Pl. I]. Four types of integumental organs of the cephalothorax (SEM photomicrographs). Scale bar = 0.005 mm.
A, B: Divergent-hair sensillum; C, single-hair sensillum; D, three types of integumental organs: Ip = circular pore; sp = circulal pore, small type; hs = single-hair sensillum.


Species Paramisophria platysoma - Plate 6 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.95, Fig.5]. Female: shematic illustration of the location of 4 types of integumental organs on cephalothorax (lateral views: A, left side; B, right side).
white o: circular pore (small type); black o: circular pore (large type); white triangle: divergent-hair sensillum; black triangle: single-hair sensillum.


Species Paramisophria platysoma - Plate 7 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi in Bull. Plankton Soc. Japan, 1990, 36 (2). [p.96, Fig.6]. Female: Schematic illustration of the location of 4 types of integumental organs on cephalothorax (dorsal view). A: dorasl view (median line indicated by broken line; B, postero-dorsal view of pediger 5; G, genital segment; P, pedigers 4 and 5.
Symbols the same as in Fig.5.


Species Paramisophria platysoma - Plate 8 of morphological figuresissued from : S. Ohtsuka & C. Mitsuzumi Bull. Plankton Soc. Japan, 1990, 36 (2). [p.98, Fig.7]. Schematic illustration of the swimming position with the compressed left lateral side parallel to the bottom. A, B, position of the urosome in swimming and resting, respectively.
Nota: The asymmetrical parts of the copepod body seem to be adapted for the behavior in its habitat. The gut content analysis revealed that the copepods fed carnivorously on epibenthic harpacticoids.


Species Paramisophria platysoma - Plate 9 of morphological figuresIssued from : B.-J. Lim & G.-S. Min in J. Nat. Hist., 2014, 48 (9-10). [p.532, Table 3].
Morphological characteristics.

Nota: Compare within Paramisophia species of northeastern Asia: See P. itoi, P. sinjinensis, P. japonica, P. sinica, P. koreana.

NZ: 1

Distribution map of Paramisophria platysoma by geographical zones
Loc:
East China Sea (Kume Is., Japan)
N: 1
Lg.:
(298) F: 1,08; M: 1,03; {F: 1,08; M: 1,03}
Rem.: epibenthic , coastal.
Last update : 27/01/2015
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed September 24, 2021]

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