Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Scolecitrichidae ( Family )
            Scolecithrix ( Genus )
Scolecithrix longipes  Giesbrecht, 1892   (F)
Syn.: ? Amallothrix Farrani Rose, 1942 (p.130, figs.F, Rem.);
Scolecithricella longipes : Sewell, 1948 (p.508); Tanaka, 1962 (p.47, figs.F);1965 a (p.19); Carter, 1977 (1978) (p.35); Roe, 1984 (p.357); Kuriyama & Nishida, 2006 (p.293, 300: Tab.II; fig.7, 10, vertical distribution); Vives & Shmeleva, 2007 (p.781, figs.F, Rem.)
Giesbrecht, 1892 (p.266, 283, 775, fig.F); Giesbrecht & Schmeil, 1898 (p.43, Rem. F); Bradford, 1973 (p.142); Bradford & al., 1983 (p.103); Vyshkvartzeva, 1999 (2000) (p.234)
Species Scolecithrix longipes - Plate 1 of morphological figuresissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1962, X (1). [p.47, Fig.132]. As Scolecithricella longipes.
Female (from Sagami Bay): a, habitus (dorsal); b, forehead (left lateral side); c, last thoracic segment and urosome (left lateral side); d, P2; e, P3; f, 5th pair of legs (abnormal: right leg stump), the left leg incompletely 3-jointed.

Nota Female:
- Abdomen 4-segmented; proportional lengths of abdomen and caudal rami 38 : 21 : 19 : 5 : 17 = 100.
- Genital segment cylindrical, longer than wide.
- Caudal rami 1.7 times as long as wide.
- A1 21-segmented, reaches back to the distal margin of the 2nd abdominal segment.
- A2 exopod about as long as endopod (23 : 22).
- Mx1 with 7+2 setae on the outer lobe, 6 setae on exopod, 5+3 setae on endopod, 5 setae on the 2nd basal segment.
- Mx2 with 3 long vermiform and 5 bud-like sensory filaments on the distal segments.
- P1 to P4 as those of Scolecithrix vittata.
- P2 with a moderately long outer edge spine on the 1st exopodal segment, extending about to the middle of the 2nd segment. Terminal spine of exopod with 34 teeth.
- P3 and P4 with terminal spine of exopod each 24 and 38 teeth.
- In the present specimen, P5 of abnormal structure; the right leg stump; the left leg incompletely 3-segmenred; the spine on the distal segment not strong.

Species Scolecithrix longipes - Plate 2 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.13, Fig.30].
Female: 13, P5.

Compl. Ref.:
Belmonte, 2018 (p.273, Table I: Italian zones)
NZ: 4

Distribution map of Scolecithrix longipes by geographical zones
South Africa (E) (Natal), off W Cabo Finisterre, W Medit. (Napoli), Japan (Sagami Bay)
N: 6
(47) F: 1,65; (117) F: 1,73; (1000) F: 1,8 ± 0,1; {F: 1,65-1,90}
Rem.: Mesopelagic.
Probable in the Genus Scolecithricella.
Cf; Amallothrix farrani Rose (1942, p.130), probably synonym.
Last update : 18/01/2021
    to add your remark

 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., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed May 18, 2024]

© copyright 2005-2024 Sorbonne University, CNRS

CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université


Version française
English version



On the WEB of CNRS


Marine Planktonic Copepods

Marine Planktonic Copepods


Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins