Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Scolecitrichidae ( Family )
            Scolecithricella ( Genus )
Scolecithricella denticulata  Tanaka, 1962   (M)
Tanaka, 1962 (p.65, Descr.M, figs.M); Bradford, 1973 (p.143); Bradford & al., 1983 (p.78); no in Razouls & Durand, 1991 (p.76)
Species Scolecithricella denticulata - Plate 1 of morphological figuresissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1962, X (1). [p.96, Fig.149].
Male (from Sagami Bay): a, habitus (dorsal); b, forehead (left lateral side); c, last thoracic segment and urosome (left lateral side); d, rostrum (dorsal view); e, Mx2; f, exopod of P1; g, P2 (basipods); h, P5.

Nota Male:
- Cephalothorax about 2.8 times the abdomen length (2.07 : 0.75).
- Head and 1st pedigerous segment fused, 4th and 5th pedigers fused, but in lateral aspect the line of fusion is faintly visible.
- Posterolateral corners of the last thoracic segment rounded in lateral aspect.
- Rostral spine robust, attenuates into fine filament at the distal half.
- Abdomen 5-segmented; segments and caudal rami in proportional lengths 8 : 34 : 24 : 26 : 2 : 6 = 100.
- 2nd abdolinal segment swollen distally.
)- Anal segment short, concealed beneath the foregoing.
- Caudal rami divergent, about as long as wide.
- A1 19-segmented on the right side, extends to the end of the 2nd abdominal segment.
- A2 exopod 1.5 times as long as endopod.
- Mx1 with 9 setae on outer lobe; 8 setae on exopod; 7 setae on endopod; 5 setae on the 2nd basal segment; 4 setae on the 3rd inner lobe; 2 setae on the 2nd inner lobe
- Mx2 with 3 long vermiform and 5 bud-like (amalliform) filaments on the segments of the endopod.
- P1 with the outer edge spine on the 1st exopodal segment; 1st and 2nd endopodal segments furnished each with rows of minute spines on posterior surface; 3rd exopodal segment 1.5 times as long as the 2nd segment.
- P2 basis furnished with 3 small pointed teeth on the inner margin about the middle; the 1st exopodal segment with a long and curved outer edge spine; posterior surface of coxa and basis covered with minute spines.
- P3 and P4 with inner margin smooth.
- Inner marginal setae of the coxa of P4 small.

Species Scolecithricella denticulata - Plate 2 of morphological figuresissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1962, X (1). [p.85].
Male: Proportional lengths of segments of A1 on the right side.
Nota: A1 19-segmenrd. Segments 1 to 7 with each the following numbers of aesthetascs: 1, 4, 2, 2,1, 2.

NZ: 1

Distribution map of Scolecithricella denticulata by geographical zones
Japan (Sagami Bay)
N: 1
(117) M: 2,82; {M: 2,82}
Rem.: Genus poorly assured. Probable in Amallothrix.
Last update : 20/03/2017
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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., 2005-2023. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed June 02, 2023]

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Marine Planktonic Copepods

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