Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pontellidae ( Family )
            Labidocera ( Genus )
Labidocera kaimanaensis  Mulyadi, 2014   (F,M)
Mulyadi, 2014 (p.1623, Descr. F, M, figs. F,M, Rem., Table II)
Species Labidocera kaimanaensis - Plate 1 of morphological figuresIssued from : Mulyadi in Crustaceana, 2014, 87 (14). [p.1623, Fig.1].
Female (Kaimana Bay, W Papua): a, habitus (dorsal); b, pedigerous somite 5 and urosome (dorsal); c, same (lateral); d, same (ventral); e, A1; f, rostrum (frontal view); g, Md palp.

- Relative length of prosome to urosome 2.85 : 1.
- Cephalosome without lateral cephalic hooks but with lateral prominence at bases of A1.
- Dorsal eye-lenses small and separated by more than 2 times the eys diameter.
- A1 21-segmented, segments 2-3 apparently fused, segments 4-5 and 8-9 not completely fused; reaching middle length of pedigerous somite 3.
- Cephalon and pedigerous somite1 separated, 4th and 5th fused with slightly asymmetrical posterior corners, right side slightly wider than left and reaching 0.23 length of genital double-somite.

Species Labidocera kaimanaensis - Plate 2 of morphological figuresIssued from : Mulyadi in Crustaceana, 2014, 87 (14). [p.1625, Fig.2].
Female: a, A2; b, Mx1; c, Mx2; d, Mxp; e, Md (mandibular dentition); f, P5 (anterior view); g, right P5 (posterior view); h, left P5 (anterior view); L= left; R = right.

- Md with 2 well developed and broadly spaced single teeth, 3 median bicuspid teeth, and a pair of sharply pointed single teeth adjacent to the basal seta. Both surfaces of mandible blade with swathes of small spinules, those in the region of basal seta more strongly developed.
- P5 asymmetrical, with coxa,basis, 1 exopodal segment and without endopod; right leg with basis longer than wider than left with 1 seta on posterior face near proximal end; exopod (fig.2f) slightly longer than left with 2 round-tipped spines on outer margin of which proximal one larger and stouter, distal end trifurcate but median process much larger and stouter. Left leg with basis with 1 seta on posterior face near proximal end; exopod with 2 inner processes, of which proximal one much larger and stouter, distal end trifurcate but outer process much smaller; endodod's absent.

Species Labidocera kaimanaensis - Plate 3 of morphological figuresIssued from : Mulyadi in Crustaceana, 2014, 87 (14). [p.1626, Fig.3].
Female: a-d, P1 to P4.

Species Labidocera kaimanaensis - Plate 4 of morphological figuresIssued from : Mulyadi in Crustaceana, 2014, 87 (14). [p.1625, Table I].
Female & Male: Seta and spine formula of the four anterior pairs of legs.

Species Labidocera kaimanaensis - Plate 5 of morphological figuresIssued from : Mulyadi in Crustaceana, 2014, 87 (14). [p.1628, Fig.4].
Male: a, habitus (dorsal); b, pedigerous somite 5 and urosome (dorsal); c, same (lateral); d, right A1; e, 17th to 22ndsegments of right A1; f, rostrum (frontal view); g, P5.

- Rostrum bifid, uniformly tapered and widely separated proximally (distance between 0.65 times as long as ramus)
- Posterior corners of pedigerous somite 5 produced into symmetrical acuminate processes in dorsal view, tapering to a simple abbreviated pointed process on each lateral corner, and reaching distal end of genital somite.
- Urosome of 5 somites, proportional lengths of urosomites 26 : 35 : 23 : 9 : 7 = 100.
- Genital somite widest, asymmetrical, left side slightly expanded; 2nd urosomite slightly asymmetrical, right side longer than left; urosomite 3 1/36 times as long as urosomite 4 and 5 combined.
- Anal somite shorter than urosomite 4.
- Caudal rami about 1.7 times as long as wide, about same in length with urosoite 3, 4 and 5 combined, right ramus slightly broader than right one ; each ramus with 5 plumose and 1 small setae.
- Right A1 geniculate; relative length of 3 terminal free segments 46: 27 : 27; segment 17 about 0.6 times as long as segment 18, anterior margin from proximal to distal 1/3 bearing a ridge of about 13 developed denticles and 1 seta and 1 aesthetasc distally; segment 18 about 3.9 times as long as wide, anterior margin with a ridge of about 50 denticles of varying shapes and sizes, spanning lengthwise from proximal end to about 1/5th segment's length from distal end, of which the 10yj denticle is very big and stouter than others; Fused segments 19-21 about 5.1 times as long as wide, anterior margin with a ridge of 78-80 weakly developed denticles spanning lengthwise beginning 1/5 segment's length from its proximal end and extending to distal end; segment 22 prolonged distally into spur-like process and extending to distal end of segment 23. Left A1 as in female.
P5 uniramous, asymmetrical: right leg 4-segmented, coxa exceedingly short, basis more than twice length of coxa, with 1 plumose seta on posterior surface; chela elongated and sub-cylindrical with convex inner margin, 3.8 times as long as maximum width (except thumb), thumb at proximal end terminating into short processes, outer surface of chela between thumb and distal end of finger with an anvil-shaped lamella and a cylindrical lamella just distal to anvil-shaped lamella near base of thumb; exopodal segment 2 (finger) elongated, cylindrical, medially curved outwardly and terminating into 1 round-tipped spine and 1 spine-like seta, furnished with 2 setae on concave surface near the area where the main curvature occurs. Left leg with coxa very short, basis more than 3 times as long as coxa, bearing 1 plumose seta on posterior surface near base of the segment; exopodal segment 1 small and short, about half length of basis; exopodal segment 2 slightly longer than exopodal segment 1, bulb-shaped with 1 medial round-tipped small spine on outer margin, distal end with 1 short spine and 2 round-tipped spines, these spine shorter than their own segment, inner margin hirsure.

Species Labidocera kaimanaensis - Plate 6 of morphological figuresIssued from : Mulyadi in Crustaceana, 2014, 87 (14). [p.1630, Table II].
Characteristic features of L. kaimanaensis compared with five species in the sub-groups in Indo-Australian region.
Compare with L. cervi, sinilobata, detruncata and farrani

NZ: 1

Distribution map of Labidocera kaimanaensis by geographical zones
Arguni Bay, Kaimana, W Papua);

Type locality: 03°21.9' S, 133°53'11'' E.
N: 1
(1218) F: 1,91-1,94; M: 1,75-1,80; {F: 1,91-1,94; M: 1,91-1,94}
Rem.: For Mulyadi (2014, p.1629) this species belongs within the super-species detruncata, and in the sub-group L. detruncata-kaimanaensis.
Last update : 17/03/2018
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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 May 21, 2022]

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