Pachos trispinosum - Species Card - Marine Planktonic Copepods

Species Card of Copepod

Cyclopoida ( Order )	details
incertae sedis (Cyclopoida) ( Family )	details
Pachos ( Genus )	details	List species for this Genus

Pachos trispinosum Rose, 1943 (M)

Abbreviations or symbols

Ref.:

(

List of the studied authors )

Rose, 1943 (p.149, Descr.M, figs.M, Rem.)

Species Pachos trispinosum - Plate 1 of morphological figures

Issued from : M. Rose in Bull. Soc. Zool. Fr., 1943, 68. [p.150].
Male (from Algiers Bay): habitus (dorsal); A1 antennula; A2, antenna; T: transparent points-like on cephalic and thoracic teguments.

Nota: Front of forhead with 3 thick points and body, except the urosome, with very numerous minute spines giving an granulose aspect.
Md tiny, stylet-like.
Mx1 rudimentary, process-like with any setae.
Mx2 rudimentary, atrophied.
P5 represented by only 1 plumose seta on the 5th thoracic segment very short., at the base of the seta is fouunded a vestigial second seta like a short spine.
Urosome 4-segmented, the 2nd and 3rd urosomal segments equal and very short, segment anal about equal to the two preceding together .

Species Pachos trispinosum - Plate 2 of morphological figures

Issued from : M. Rose in Bull. Soc. Zool. Fr., 1943, 68. [p.151].
Male: Ur, urosome (dorsal); Mxp2, maxillipède posterior (= Mxp); P1 to P4, swimming legs.

Nota: Mxp 4-segmented, 1st segment large, trapezoid, 2nd segment long and swollen at base with a long spine in the middle on the inner edge and below a group of little spines; 3rd segment short and naked, bearing the 4th claw-like very long and curved, ending by a little rounded hook,; this segment is swollen at base with laterally 2 spiniform setae, symmetrically located.
Caudal rami 3 times longer than wide, each with 6 plumose setae.

NZ:

Distribution map of Pachos trispinosum by geographical zones

Distribution map of Pachos trispinosum for the Zone Mediterranean Sea, Black Sea

Loc:

(

Geographical glossary )

W Mediterranean Sea (Algiers Bay)

Lg.:

(

References of the authors concerning dimensions )

(1160) M: 2,5; {M: 2,5}

Rem.:

Depth.
After Rose (1943, p.153) this male could be perhaps the male of Pachos tuberosum.

Last update : 17/01/2020


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