Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Tortanidae ( Family )
            Tortanus ( Genus )
                Eutortanus ( Sub-Genus )
Tortanus (Eutortanus) terminalis  Ohtsuka & Reid, 1998   (F,M)
Ref.:
Ohtsuka & Reid,1998 (p.788, figs.F,M)
Species Tortanus (Eutortanus) terminalis - Plate 1 of morphological figuresissued from : S. Ohtsuka & J.W. Reid in J. Crustacean Biol., 1998, 18 (4). [p.789, Fig.7].
Female (Tanega Island, S Japan): A, habitus (dorsal); B, idem (lateral right side); C, distal corner of prosome and genital compound somite (dorsal); D, idem (lateral right side); E, idem (lateral left side); F, idem (dorsal); G, posterior corner of prosome and urosome (lateral left side); H, idem (lateral right side); I, P1 (anterior); J, terminal portion of 3rd exopod segment of P1 (anterior); K, P5 (anterior); L, left exopod of P5 (anterior).
Scale bars in mm.


Species Tortanus (Eutortanus) terminalis - Plate 2 of morphological figuresissued from : S. Ohtsuka & J.W. Reid in J. Crustacean Biol., 1998, 18 (4). [p.790, Fig.8].
Female: A, A1 (segments I-XIX); B, A1 (segments XX-XXVIII); C, Mx2 (large setae on coxa, basis, and endopod omitted); D, 1st endite of Mx2 (seta omitted).
Scale bars in mm.


Species Tortanus (Eutortanus) terminalis - Plate 3 of morphological figuresissued from : S. Ohtsuka & J.W. Reid in J. Crustacean Biol., 1998, 18 (4). [p.781, Fig.4].
Male: A, habitus (dorsal); B, distal corner of prosome and urosome (dorsal); posterior corner of prosome and urosome (lateral right side); D, posterior corner of prosome and genital and 1st abdominal somites (lateral left side); E, right A1 (segments I-XVIII); F, idem (segments XIX-XXVIII); G, idem (segments VIII-XV); H, idem (segments XIX and XX); I, idem (segments XXI-XXIV); J, P5 (anterior); K, inner projection of basis of right P5 (anterior); L, distal part of 2nd exopod segment of left P5 (anterior).
Scale bars in mm.

NZ: 1

Distribution map of Tortanus (Eutortanus) terminalis by geographical zones
Species Tortanus (Eutortanus) terminalis - Distribution map 2issued from : S. Ohtsuka & J.W. Reid in J. Crustacean Biol., 1998, 18 (4). [p.794, Fig.10, A].
Horizontal distributions of several species in the subgenus Tortanus (Eutortanus) modified from Ohtsuka & al. (1992).
Species Tortanus (Eutortanus) terminalis - Distribution map 3issued from : S. Ohtsuka & J.W. Reid in J. Crustacean Biol., 1998, 18 (4). [p.794, Fig.10, B].
Paleogeography of the East China Sea and its neighboring regions during the Early Pliocene the dotted line indicatinig the present coastline (redrawn after Kizaki and Oshiro, 1977, p.542-549). Note the correstondace with the horizontal distribution of the subgenus Tortanus (Eutortanus).
The new species T. (Eutortanus) terminalis has so far been recorded from the type locality (arrowed in fig.10, A), and Shibushi Bay, Kagoshima (H. H. Ueda, pers. comm.) and Tanabe Bay (S. Ohtsuka, pers. observ.). In contrast to the fact that most members of the subgenus Eutortanus are resticted to brackish waters along the East Asian continent, terminalis occur only in neritic waters of hight salinity.
Loc:
Japan (Tanega Is., Shibushi Bay, Tanabe Bay)
N: 1
Lg.:
(762) F: 2,12-1,94; M: 2,1-1,86; {F: 1,94-2,12; M: 1,86-2,10}
Last update : 04/02/2008
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