Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Clausocalanidae ( Family )
            Peniculoides ( Genus )
Peniculoides secundus  Markhaseva & Renz, 2015   (F)
Markhaseva & Renz, 2015 (p.1034, Descr.F, figs.F)
Species Peniculoides secundus - Plate 1 of morphological figuresIssued from : E.L. Markhaseva & J. Renz in Crustaceana, 2015, 88 (9). [p.1035, Fig.1].
Female (from 29°19'N, 28°38'W): A-B, habitus (dorsal and lateral, respectively); C, anterior cephalosome (lateral); D, rostrum (ventral view); E-F, posterior prosome and urosome (dorsal and lateral, respectively); G, posterior prosome and genital double-somite (ventral); H, spermathecae (lateral view); I, caudal rami (ventral); J, P5 (vntral view); .
Md : mandible; Prgn: paragnaths; Mx2: maxilla.
Scale bars: A-B, 0.5 mm; C-J, 0.1 mm.

- Rostrum as round-triangular projection bearing 2 filaments.
- Cephalosome and pedigers 1-5 separate.
- posterior corners of pediger 5 obtuse-triangular in dorsal view and rounded in lateral view.
- Spermathecae elongate, directed anteriorly distally.
- Caudal rami with 6 setae (4 terminal, 1 small ventral, scar of broken lateral seta present).
- P5 uniramous, 3-segmented ; 3rd left segment with 3 terminal and right with 2 terminal spines.

Species Peniculoides secundus - Plate 2 of morphological figuresIssued from : E.L. Markhaseva & J. Renz in Crustaceana, 2015, 88 (9). [p.1036, Fig.2].
Female: A, right A1 (ancestral segments I-XIV); B, right A1 (ancestral segments XV-XX); C, right A1 (ancestral segments XXI-XXVIII); D, left A1 (ancestral segments XXVII-XXVIII); E, Mx1; F, P1; G, P1 endopod.
Absent setae are indicated by dotted line. Enp: endopod; exp: exopod.
Scale bars: 0.1 mm.

Nota :
- A1 slightly longer than body , 24 free segments (terminal segments XXVII-XXVIII with 5 setae, 2 thickened and annulated setae are the longest
- Mx1 praecoxal arthrite large, strong and heavily sclerotized, muscles well developed, with 9 terminal and 2 posterior setae ; coxal endite with 2 setae, coxal epipodite without setae ; proximal basal and distal endites with 2 setae each ; endopod with 4 setae ; exopod with 4-5 setae.

Species Peniculoides secundus - Plate 3 of morphological figuresIssued from : E.L. Markhaseva & J. Renz in Crustaceana, 2015, 88 (9). [p.1038, Fig.3].
Female: A, A2; B, A2 exopod, different view, proximal segment is not figured; C, D and E, Mx2 in different views (endite setation is not figured in D). Enp: endopod; p: praecoxal endite; c: coxal endite; bp: basal proximal endite; bd: basal distal endite; abd: attenuation of basal distal endite; el: enditic-like lobe of proximal endopodal segment.
Scale bars: 0.1 mm.

Nota :
- A2 coxa, basis and endopod segment 1 with 1 seta each, endopod segment 2 with 13 setae ; exopod with 1, 1-1-1, 1, 1, 1, 1, 0, and 3 setae.
- Mx2 praecoxal endite with 4 setae, coxal endite with 3 setae ; proximal basal endite with 2 setae, distal endite’s inner part transformed into large spine-like attenuation with 1 seta proximally and, enditic-like lobe of proximal endopodal segment with 2 setae ; endopod with 3 setae. Praecoxal to basal endites with distal part flat and round, its surface in coxal and basal endites is densely covered by short spinules, brushlike.

Species Peniculoides secundus - Plate 4 of morphological figuresIssued from : E.L. Markhaseva & J. Renz in Crustaceana, 2015, 88 (9). [p.1039, Fig.4].
Female: A, Md; B, C, gnathobase (different views); D, Mxp syncoxa and basis; E, Mxp, free segments of endopod.
Scale bars: 0.1 mm.

Nota :
- Md gnathobase strong, attached muscles well developed, cutting edge wide, with 8 teeth (4 large, heavily sclerotized) ; exopod 5-segmented with 1, 1, 1, 1, and 2 setae respectively ; endopod segment 1 with 2 setae, segment 2 with 9 setae ; basis with 3 setae.
- Mxp syncoxa with 1 seta on proximal praecoxal endite, 2 setae on middle endite and 3 setae on distal endite ; coxal endite with 3 setae ; basis with 3 medial and 2 distal setae , and a row of denticles ; endopod 5-segmented, with 4, 4, 3, 3, and 4 setae.

Species Peniculoides secundus - Plate 5 of morphological figuresIssued from : E.L. Markhaseva & J. Renz in Crustaceana, 2015, 88 (9). [p.1040, Fig.5].
Female: A, P2; B, P3; C, P4.
Scale bar: 0.1 mm.

NZ: 1

Distribution map of Peniculoides secundus by geographical zones
N Atlant (off W Canary Islands).

Type locality: 29°19' N, 28°38' W.
N: 1
(1187) F: 2,10; {F: 2,10}
Rem.: Above the sea bed at depth of 4338 m.
Last update : 19/03/2016
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed May 25, 2024]

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