Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Scolecitrichidae ( Famille )
            Scottocalanus ( Genre )
Scottocalanus rotundatus  Tanaka, 1961   (F,M)
Syn.: Scottcalanus rotundatus Tanaka, 1961 a (p.147, figs.F,M)
Ref.:
Tanaka, 1969 (p.275); Park, 1983 (p.198, 199); Bradford & al., 1983 (p.116)
Espèce Scottocalanus rotundatus - Planche 1 de figures morphologiquesissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1961, IX (1). [p.148, Fig. 109]. As Scottcalanus rotundatus.
Female (from Izu Region): a, habitus (dorsal); b, forehead (lateral); c, last thoracic segment and urosome (lateral, left side); d, rostrum; e, genital field; f, Mx1; g, P2; h, P3; i, P5.
Head incompletely separates from the thopracic segments, as are the 4th from the 5th. Head without median crest. The rostral spine is about as long as the depth excavation. Urosomr with 4 segments; segments and caudal ramus in the proportional lengths 46:20:14:5:51 = 100. Caudal rami about as long as wide. A1 23-segmented, extends to the end of the caudal rami. Exopod of A2 1.3 times as long as the endopod.

Male: j, last thoracic segment and urosome (lateral; k, distal segments of left P5.
Lateral corner of the last thoracic segment narrowly rounded at the azpical portion. Urosomal segments and caudal ramus in the proportional lengths 19:25:21:19:8:8 = 100. A1 21 segments, segments 8-13 fused, 24 and 25 well separated. Exopod of A2 1.5 times long as the endopod. Md with a robust 2nd basal segment and a narrow biting part. Mx2 and Mxp as those of the female. P1 to P4 as those of the female. The 1st segment of the exopod of the right P5 has a small process on the distal inner margin. The distal segment of the exopod of the left P5 has a pad of stiff hairs and 2 strong curved spines (fig. k).

Ref. compl.:
Shih & Young, 1995 (p.74); Kuriyama & Nishida, 2006 (p.300: Tab.II, fig.7)
NZ: 3

Carte de distribution de Scottocalanus rotundatus par zones géographiques
Loc:
Japan (Izu), Sagami Bay, Philippines, mers de Chine (South China Sea)
N: 4
Lg.:
(108) F: 4,07; M: 4,38; (1000) F: 4,1 ± 0,1; {F: 4,0-4,07; M: 4,38}
Rem.: mesopelagic.
Dernière mise à jour : 06/10/2010

 Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :

Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2012. - Diversité et répartition géographique chez les Copépodes planctoniques marins. Disponible sur http://copepodes.obs-banyuls.fr 
[Accédé le 24 mai 2013]

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