Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Bradyidius ( Genus )
Bradyidius spinifer  Bradford, 1969   (F,M)
Syn.: Bradyidius sp. Bradford, 1972 (p.38, figs.F)
Bradford, 1969 (p.87, figs.F,M); Bradford, 1976 a (p.6: Rem.); Bradford & Jillett, 1980 (p.21, figs.F,M, distribution chart); Othman & Greenwood, 1987 (p.1137); Bradford-Grieve, 2003 (p.95, 96, tab.1, 3)
Species Bradyidius spinifer - Plate 1 of morphological figuresissued from : J. Bradford in N.Z. Jl mar. freshw. Res., 1969, 3 (1). [p.87, Figs.54-57].
Female: 54, habitus (lateral right side); 55, A2; 56, Md; 57, Mx1.
Bar scale: 1.0 mm (54), others 0.1 mm.

Nota: Head and 1st thoracic segment fused but the line of fusion clearly visible; 4th and 5th toracic segments incompletely fused laterally.
Posterolateral thoracic borders extend backwards and upwards into acute points which do not quite reach genital segment posterior border.
Rostrum represented by 2 medium-sized points.
Urosome 4-segmented.
A1 almost reaches posterior border 3rd thoracic segment.
mx1: 1st inner lobe covered with small spinules and with 8 stout, sparsely plumose, apical spines, 2 longer proximal spines and 4 setae; 2nd inner lobe has 5 setae; 3rd inner lobe covered in fine spines and 4 setae; 1st outer lobe with 9 large serae; 2nd outer lobe naked; 2nd basipod with 4 setae and endopod with approximately 15 setae; exopod with 10 setae.

Species Bradyidius spinifer - Plate 2 of morphological figuresissued from : J. Bradford in N.Z. Jl mar. freshw. Res., 1969, 3 (1). [p.88, Figs.58-60].
Female: 58, Mx2; 59, Mxp; 60, P1.
Bar scale: 0.1 mm.

Species Bradyidius spinifer - Plate 3 of morphological figuresissued from : J. Bradford in N.Z. Jl mar. freshw. Res., 1969, 3 (1). [p.90, Figs.61-64].
Female: 61, part terminal exopod spine of P4; 62, P2; 63, P3; 64, P4.
Bar scale: 0.1 mm.

Nota: P5 absent.

Species Bradyidius spinifer - Plate 4 of morphological figuresissued from : J. Bradford in N.Z. Jl mar. freshw. Res., 1969, 3 (1). [p.91, Figs.65-74].
Male: 65, habitus (ventral); 66, A2; 67, Md (mandibular palp); 68, Mx1; 69, Mxp; 70, P1; 71, P2; 72, P3; 73, P4; 74, P5.
Bar scale: 1.0 mm (65), others 0.1 mm.

Nota: P5 uniramous, equal, 5-segmented on both sides. Right leg has 2 small basal segments and 3 narrowed segments, the last of which tapers. Left leg has 2 longer basal segments, 2 elongate segments, and a small apical segment covered with hairs.

Species Bradyidius spinifer - Plate 5 of morphological figuresissued from : J.M. Bradford in Mem. N. Z. Oceonogr. Inst., 1972, 54. [p.37, Fig.6, 11-15]. As Bradyidius sp.
Female (from Kaikoura, New Zealand): 11, habitus (dorsal); 12, anal segment and caudal rami (ventral); 13, P1; 14, P2; 15, P3.
Scale bars: 1 mm (11); 0.1 mm (12, 13, 14, 15).

Species Bradyidius spinifer - Plate 6 of morphological figuresissued from : J.M. Bradford-Grieve in N. Z. J. Mar. Freshw. Res., 2003, 37. [p.101, Fig.4, E-I].
Female (from North Island, new Zealand): E, habitus (lateral); F, rostrum (anterior view); G, pedigerous somite 5 and urosome (dorsal); H, genital double somite (lateral); I, P1.

Compl. Ref.:
Markhaseva, 1998 (p.250, Fig.2); Bradford-Grieve, 2004 (p.284)
NZ: 1

Distribution map of Bradyidius spinifer by geographical zones
New Zealand (Kaikoura, SE North Island).

Type locality: 42°26'S, 173°52'E.
N: 4
(116) F: 2,5; (198) F: 2,74; M: 1,96: (898) F: 2,2-2,5; M: 2,2; {F: 2,20-2,74; M: 1,96-2,2}
Rem.: mesopelagic.
After Bradford-Grieve (2003, p.102) the samples currently reported on have extended the range of B. spinifer northwards along the continental slope of north-eastern New Zealand. Examined as complete specimens, B. spinifer and B. capax look similar, but may be distinguished.
Last update : 30/12/2014
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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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