Species Card of Copepod
Calanoida ( Order )
    Pseudocyclopoidea ( Superfamily )
        Pseudocyclopidae ( Family )
            Pseudocyclops ( Genus )
Pseudocyclops schminkei  Chullasorn, Ferrari & Dahms, 2010   (F,M)
Ref.:
Chullasorn & al., 2010 (p.37, Drescr. F,M, figs.F,M); Laakmann & al., 2019 (p.330, fig. 2, 3, phylogenetic relationships)
Species Pseudocyclops schminkei - Plate 1 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.38, Fig.1].
Female (from aquarium, Zamami Is.): A-B, habitus (dorsal and left lateral, respectively).


Species Pseudocyclops schminkei - Plate 2 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.39, Fig.2].
Female: A-B, urosome (dorsal and lateral, respectively).

Nota: Genital double-somite with small point laterally toward anterior edge and ventral ridge posterior to paired, anteroventral oviductal openings; paired copulatory pores anterior to paired, tooth-like, ventral extensions of epicuticule; linear series of indentations from small point to copulatory pore on right side. Anal somite narrow (± telescoped in the preceeding somite). Caudal rami posterior margin extending beyond level of insertion of setae; 1 dorsal, 1 lateral seta and 4 terminal, 3 largest setae with secondary articulation close to their insertion.

The 2nd terminal seta from medial seta on the caudal ramus of females is polymorphic; it is usually broad proximally and thin distally on most females, but on a few specimens it may be thick proximally but tapering smoothly distally, like the males. A similar polymorphism has been reported for P. obtusatus asymmetrica by Ummerkutty1 1968 and for P. Xiphophorus by Brugnano & al. (2009).


Species Pseudocyclops schminkei - Plate 3 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.40, Fig.3].
Female: A, A1; B, A2; C, Md.

Nota: A1 17-segmented. A2: endopod 3-segmented; exopod appearing 6-segmented


Species Pseudocyclops schminkei - Plate 4 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.41, Fig.4].
Female: A, Mx1; B, Mx1 (basis plus rami; C, Mx2; D, endopod of Mx2; E, Mxp.

Mx1: Praecoxal endite extending distally, with 5 thick and 3 thin ventral setae, 1 anterior seta and 4 posterior setae; basal exite with 1 seta, proximal endite well-developed with 3 setae, distal endite not extended ventrally with 4 setae; exopod lobate with 4 lateral and 7 terminal setae; endopod 2-segmented, proximal segment with groups of 5 mid-ventral and 4 distoventral setae, distal segment with 6 terminal setae.


Species Pseudocyclops schminkei - Plate 5 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.42, Fig.5].
Female: A, right P1; B, right P2.


Species Pseudocyclops schminkei - Plate 6 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.43, Fig.6, A-B].
Female: A, right P3; B, right P4.


Species Pseudocyclops schminkei - Plate 7 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.43, Fig.6, C].
Female: C, right P5.

P5: Intercoxal sclerite with complete row of denticles proximally and broken row of denticles distally. Coxa with partial row of denticles laterally and complete row of denticles distally; basis attenuate distomedially with lateral seta. proximal and middle exopodal segments without medial seta; middle segment with distomedial attenuation; distal complex with 2 lateral, 1 terminal and 1 distomedial spine-like setae, and a pore and thickened integumental ridge on posterior face.
Proximal complex of endopod with arthropodial membrane anteriorly, opposite to a proximal row of denticles posteriorly, distally attenuate medially and laterally, without setae; distal segment attenuate distolaterally and slightly distomedially, with 2 terminal setae


Species Pseudocyclops schminkei - Plate 8 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.44, Fig.7].
Male: A-B, habitus (dorsal and left lateral, respectively).


Species Pseudocyclops schminkei - Plate 9 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.45, Fig.8].
Male: A-B, urosome (dorsal and ventral, respectively).


Species Pseudocyclops schminkei - Plate 10 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.46, Fig.9].
Male: A, rostrum and left A1 (anterior view); B, right A1 (anterior view); C, A2.

Nota: left A1 similar to female; right A1 also 17-segmented, proximal seta on articulating segments 12-14 modified as a broad-based, spine-like seta closely appressed to segment; articulating segment 15 attenuate distally, tip reaching distal end of segment 16.
A2, Mx1, Mx2 and Mxp similar to female.


Species Pseudocyclops schminkei - Plate 11 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.47, Fig.10].
Male: P2.
Lateral margin of left and right middle and distal exopod showing slight difference in length of proximal (middle) spine-like seta (arrowhead) on distal complex; imaginary broken lines for reference.

Nota: P1, P3 and P4 similar to female but with denticles on basis (P1), or coxa, basis and rami (P3-P4).
P2: denticles on coxa, basis and rami. Tip of proximolateral seta on left distal exopodal complex projecting beyond imaginary line between tip of lateral seta on distal exopodal complex; tip of proximolateral seta on right distal exopodal complex not reaching that imaginary line.


Species Pseudocyclops schminkei - Plate 12 of morphological figuresissued from : S. Chullasorn, F.D. Ferrari & H.-U. Dahms in Helgol. Mar. Res., 2010, 64; [p.48, Fig.11].
Male: A, protopod and endopods of P5 (anterior); B, right exopod of P5 (anterior); C, right bexopod of P5, medial seta of proximal segment and distal segment (posterior); D, left exopod (anterior).

P5: Intercoxal plate with ventral, beak-like lobe;
Right coxa fused to right basis; later with lateral seta. Right exopod 2-segmented, proximal segment with lateral seta with epicuticular fringe on both sides; broad blade-like medial seta with incomplete fringe on one side; distal segment thick, curved, spine-like attenuation with medial and lateral seta proximally. Right endopod 1-segmented, quadrate, without setae, with proximal and distal indentation.
Left coxa fused to left basis; latter with lateraln seta; basis with broad attenuation narrowing and folded on itself forming grooved, pointed tip. Left exopod apparently 2-segmented, proximal segment with lateral seta with epicuticular fringe on one side, and medial attenuation with denticles; distal segment with broad, quadrate, proximolateral lobe with medial denticles, followed by small middle lobe with lateral denticles, and broad, distal lobe flexed 90°; with 2 pointed lobes apically; 1 small seta proximal to quadrate lobe and 1 small seta proximal to flexed lobe. Left endopod 1-segmented, rounded, without setae, with distal, tongue-like lobe.

NZ: 1

Distribution map of Pseudocyclops schminkei by geographical zones
Loc:
NW Pacif. (Zamami Island, Okinawa)
N: 1
Lg.:
(1105) F: 0,55-0,63; M: 0,56-0,59; {F: 0,55-0,63; M: 0,56-0,59}
Rem.: in aquarium used to culture pearl oysters.
Last update : 02/04/2019
    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 August 09, 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