Nouvelle version du site ! L'interface vient d'être modernisée — donnez-nous votre avis par mail ou notez-la : ★★★★★ ★★★★★
Copépodes planctoniques marins
Scaphocalanus impar  Wolfenden, 1911   (F0)
Taxonomy
Ordre Calanoida
Superfamille Clausocalanoidea
Famille Scolecitrichidae

Synonymie

Amallophora impar Wolfenden, 1911 (p.263, Descr.F, figs.F); Bradford & al., 1983 (p.93);
? Scaphocalanus minuta Tanaka, 1937 (p.262, Descr.M, figs.M); 1961 a (p.169, Rem.); Morioka, 1972 a (p.314); Park, 1982 (p.77);
? Scaphocalanus minutus : Brodsky, 1950 (1967) (p.256, figs.M); Sewell, 1948 (p.560); Bradford, 1973 (p.143); Chen Y.-Q., 1986 (p.205, Table 1: abundance %, Table 2: vertical distribution);
? Scaphocalanus impar : Tanaka, 1961 a (p.172, figs.F); 1965 (p.19)

Références

Sewell, 1948 (p.574); Bradford, 1973 (p.143, 144); Björnberg & al., 1981 (p.637, fig.F); Park, 1982 (p.77)

Figures

Planche 1 issued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1961, IX (1). [p.172, Fig.118]. Doubtful.
Female (from Japan: Sagami Bay): a, habitus (dorsal); b, last thoracic segment and genital segment (lateral, left side); c, P2; d, P5.
Nota:
- Cephalothorax and abdomen in proportional lengths 77:23.
- Last thoracic segment with obtusely rounded corner in lateral aspect.
Urosomal segments and caudal rami in proportional lenths 35 : 21 : 18 :15 : 12 = 100.
- Caudal rami longer than wide.
- Terminal spine of exopod of P2 with 23 teeth.
P5 3-segmented; distal segments with 4 spines, the marginal outer spine arises opposite to the inner marginal spine, and is about 1/3 the length of the inner distal spine, the outer distal spine is about as long as the outer marginal spine, the inner marginal spine is about 2 times as long as the outer the distal segment, and is rather coarsely serrated on the outer margin.

Références complémentaires

Razouls & al., 2000 (p.343, tab. 5, Appendix)

Distribution

NZ: 2 + 2 douteux

Carte de distribution de Scaphocalanus impar par zones géographiques


Localisations

Antarct. (Indian Ocean: continental), SW Atlant., ? Japan (Izu region), ? off Hokkaido, NE Pacific tropical (in Chen Y.Q., 1986)

Citations

N: 4

Dimensions (mm)

(10) F: 2,4; (108) F: 2,45; {F: 2,40-2,45}

Remarques

Bathypélagique.
Sampling depth (Antarct.) :1200 m.
Genre mal assuré mais probable.
Distribution géographique incertaine.
? Cf. Scaphocalanus brevicornis .

Voir aussi les remarques en anglais
Dernière mise à jour : 16/11/2020