Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Tharybidae ( Family )
            Tharybis ( Genus )
Tharybis sagamiensis  Tanaka, 1960   (F)
Tanaka, 1960 a (p.127, Descr.F, figs.F); Bradford & al., 1983 (p.127); Chihara & Murano, 1997 (p.920, Pl.182: F); Andronov, 2002 (p.55, figs.F); Ferrari & Markhaseva, 2005 (p.46: tab.1)
Species Tharybis sagamiensis - Plate 1 of morphological figuresissued from : O. Tanaka in Publ. Sero Mar. Biol. Lab., 1960, VIII (1). [p.128, Fig.101].
Female (from Sagami Bay, Japan): a, habitus (dorsal); b, forehead (lateral); c, last thoracic segment and urosome (lateral right side); d, Md; e, Mx1; f, Mx2; g, Mxp; h, P1; i, P5.

Nota: Head and 1st thoracic segment fused, 4th and 5th fused.
Rostral filaments fine.
The abdominal segments and furca in the proportional lengths 43 : 17 : 17 : 3 : 20 = 100.
Genital segment slightly asymmetrical (the lateral margin of the right side has a small swelling).
2nd and 3rd abdominal segments striated on the distal margin.
Caudal rami about as long as wide.
A2 with exopodite 2 times as long as the endopodite; 1st basal segment bears a tuft of hairs on the posterior surface; distal segment of exopodite very long, more than half the length of the exopodite
Md: bitting part very strong, teeth on the inner margin fusnished with stiff hairs; exopod shorter than the endopod.
Mx1 has an exceedingly large masticatory lobe, exopod and endopod feeble; the outer lobe has 7 setae; 2nd and 3rd inner lobes with 2 and 3 setae respectively.
Mx2 with 3 long worm-like filaments and 6 bud-like sensory filaments on the distal segments, the spine on the 5th lobe is stout but not long.
P5: the 3rd segment carries 3 apical spines and a small triangular process near the proximal margin of the posterior surface (viewed from the lateral)

Species Tharybis sagamiensis - Plate 2 of morphological figuresissued from : O. Tanaka in Publ. Sero Mar. Biol. Lab., 1960, VIII (1). [p. 129].
Female: Proportional lengths of segments of A1.

Nota: A1 24-segmented, reaches back to the end of the 3rd thoracic segment.

Species Tharybis sagamiensis - Plate 3 of morphological figuresissued from : V.N. Andronov in Arthropoda Selecta, 2002, 11 (1). [p.56, Figs.289-297]. After Tanaka, 1960.
Female: 289, habitus (dorsal); 290, forehead (lateral); 291, last thoracic segment and urosome (right lateral side); 292, Md; 293, Mx1; 294, Mx2; 295, Mxp; 296, P1; 297, P5.

NZ: 1

Distribution map of Tharybis sagamiensis by geographical zones
Japan (Sagami Bay)
N: 1
(4) F: 1,2; {F: 1,20}
Rem.: Sampling between 0-1000 m.
Last update : 01/02/2015
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 Any use of this site for a publication will be mentioned with the following reference :

Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2022. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed May 28, 2022]

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