Species Card of Copepod
Calanoida ( Order )
    Calanoidea ( Superfamily )
        Paracalanidae ( Family )
            Calocalanus ( Genus )
Calocalanus monospinus  Chen & Zhang, 1974   (F,M)
Ref.:
Chen & Zhang, 1974 (p.110, 115, figs.F,M, p.116: Rem.)
Species Calocalanus monospinus - Plate 1 of morphological figuresissued from : Q.-c. Chen & S.-z. Zhang in Studia Marina Sinica, 1974, 9. [Pl.6, Figs.62-71].
Female (from South China Sea): 62, habitus (dorsal); 63, abdomen (lateral right side); 64, Mxp (basal part); 65, P1; 66, P2; 67, P3; 68, P3 (posterior surface); 69, P5.
Nota: 2nd abdominal segment very short, being usually overlapped by the preceding segment. Anal segment slightly expanded laterally and bearing ventrally a bundle of long and fine setae. Caudal ramus slightly longer than broad. A1 24-segmented, about twice as long as body, the terminal segment about twice as long as the two preceding segments taken together. Mxp 7-segmented, 2nd segment provided on the inner border with 3 plumose setae and 11 teeth of unequal lengths. Endopods 2 and 3 of P3 and P4 provided each with 2 spinules on the posterior surface. P5 uniramous and symmetrical, segment 3 with a transverse line of spinules near the distal end and a long single spine at the apex.

Male: 70, habitus (dorsal); 71, P5.
Nota: Prosome about 4.5 times as long as urosome. Abdomen 5-segmented. Caudal ramus about 1.5 times as long as broad. P5 asymmetrical; left foot 5-segmented; right foot 4-segmented, segment 4 with a minute denticle interposed between the two terminal spines, the inner one very long, about as long as the segments 2-4 taken together

Compl. Ref.:
Shih & Young, 1995 (p.71); Noda & al., 1998 (p.55, Table 3, occurrence)
NZ: 2

Distribution map of Calocalanus monospinus by geographical zones
Loc:
China Seas (East China Sea, South China Sea), S Japan (Kuchinoerabu Is.)
N: 4
Lg.:
(338) F: 0,8-0,65; M: 0,58-0,53; {F: 0,65-0,80; M: 0,53-0,58}
Rem.: For Chen & Zhang (1974, p.116) this species is a tropical species occurring abundantly in surface coastal waters all the year round, ranging from the Hsi-sha Islands to the eastern Kwangtung.
Last update : 06/02/2016
    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., 2005-2022. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed January 17, 2022]

© copyright 2005-2022 Sorbonne University, CNRS

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

 

Version française
English version

 

Search

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