Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Chiridiella ( Genus )
Chiridiella subaequalis  Grice & Hulsemann, 1965   (F)
Ref.:
Grice & Hulsemann, 1965 (p.223, 231, Descr.F, figs.F); Markhaseva, 1996 (p.108, figs.F, Rem.); Vives & Shmeleva, 2007 (p.558, Rem.F)
Species Chiridiella subaequalis - Plate 1 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.109, Fig.82].
Female. (specimen of Kuril Trench). P.md: mandibular palp.

Nota: Despite minor differences in setation of Mxp, and length of 1st outer spine on exopod of P1 this form is attribuated to C. subaequalis


Species Chiridiella subaequalis - Plate 2 of morphological figuresissued from : G.D. Grice & K. Hulsemann in J. Zool., 1965, 146. [p.234, Fig.10].
Female (29°57'N, 22°58'W): a, habitus (lateral right side); b, A2; c, Md; d, Mx1 (spines on 1st lobe omitted); e, Mx2; f, distal end of Mxp; g, proximal segment of Mxp; h, P1; i, P2; j, detail of tooth structure on terminal spine of P2; k, P3; l, P4.
Nota: Head and 1st thoracic segment separate, 4th and 5th fused.
A1 reaches end of prosome.
Endopod and exopod o fA2 subequal
Mx1: 2nd and 3rd inner lobes with 1 and 4 setae, respectively; endopod with 7 setae; exopod with 4 setae.
Mx2 with distal 3 lobes each bearing a heavily thickened seta, all of equal length.
Mxp with elongate setae on endopodal segments.
Exopods of P2-P4 3-segmented with 1st and 2nd segments incompletely separated.


Species Chiridiella subaequalis - Plate 3 of morphological figuresChiridiella subaequalis female:
1 - Mx2 with 5 endites.
2 - Mx2 not strongly modified in comparison with typical; setation first-fifth endites nearly of the same size, without pincers-like spines.
3 - Endopod of P1 without external lobe.
4 - Exopod of P1 with 2 external spines.
Mx1 second and third internal lobes with 1 and 4 setae respectively; endopod with 7 setae; exopod with 4 setae.


Species Chiridiella subaequalis - Plate 4 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.109, Fig.82].
Female: Mx1 and Mx2.


Species Chiridiella subaequalis - Plate 5 of morphological figuresChiridiella subaequalis female ;
1 - Mx2 lobes without spines arranged as pincers.
2 - 3rd, 4th and 5th lobes of Mx2 with enlarged hooklike spines .
3 - A1 approximately cephalothorax length.
4 - Endopods of P1-P4 1-segmented.
5 - Exopod of P1 with 2 edge spines.

Compl. Ref.:
Hopkins & Torres, 1988 (tab.1); Markhaseva & Razzhivin, 1993 ( p.611); Razouls & al., 2000 (p.343, Appendix); Park & Ferrari, 2009 (p.143, Table 4, Appendix 1, biogeography)
NZ: 3

Distribution map of Chiridiella subaequalis by geographical zones
Species Chiridiella subaequalis - Distribution map 3
Chart of 1996
Loc:
off W Canary Is. , Antarct. (Weddell Sea, Indian sector), Kuril-Kamchatka (in Markhaseva & Razzhivin, 1993).

Type locality: 29°57'N, 22°53'W.
N: 3
Lg.:
(37) F: 3-2,81; (226) F: 2,81; {F: 2,81-3,00}
Rem.: bathy & abyssopelagic (3000-4000 m; 1500-2000 m).
Sampling depth (Antarct.) : 600-1000 m.
This species is related to C. brachydactyla Sars (1907), C. kuniae Deevey, 1974 and C. bispinosa Park (1970).
Last update : 26/07/2018
    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., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed February 24, 2021]

© copyright 2005-2021 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