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Copépodes planctoniques marins
Bradyidius arnoldi  Fleminger, 1957   (F,M)
Taxonomy
Ordre Calanoida
Superfamille Clausocalanoidea
Famille Aetideidae

Références

Fleminger, 1957 b (p.355, figs.F,M); Park, 1966 (p.810); Bradford, 1976 a (p.6: Rem.); Othman & Greenwood, 1987 (p.1137); Markhaseva, 1996 (p.70, figs.F,M); Markhaseva & al., 2008 (p.2433: Rem.)

Figures

Planche 1 issued from : A. Fleminger in Fish. Bull. Fish Wildl. Serv., 1957, 57 (117). [p.357, Pl. 1].
Female (from G. of Mexico): 1-2, habitus (lateral and dorsal, respectively); 6 b, Md (cutting edge); 7, P2; 8, P1; 9, endopod of P4; 10, endopod of P3; 11, genital segment (ventral); 13, Mx2; b, Md (cutting edge.
Nota: A1 24-segmented, as long as cephalothorax less spiniform processes of last segment.
Md with dentition differing from that in B. armatus; teeth more numerous, those on ventral half of of gnathal lobe overlapping.
Mx2 with short seta on lobes 2-4, each with closely spaced row of spinules on proximal portion; falcate spine on lobe 5 with closely spaced rowof short hairs.
Remaining cephalic appendages similar to those in B. armatus.
Proportional lengths of urosomal segments (caudal rami included; segments 4 and 5 taken together) 39 : 19: 20: 22 = 100.

Male: 3-4, lateral and dorsal); 5, rostrum; 6, Md (cutting edge);12, P5.
Nota: Differs from B. pacificus and B. similis chiefly in details of P5.
Proportional lengths of urosomal segments (segments 4 and 5 taken together) 15: 29: 21: 19: 16 = 100. A1 extending to caudal rami, right A1 20-segmented (primitive segments 8-10, 12-13, 20-21, 24-25 fused).


Stage V Male: 6 a, Md (cutting edge).
Nota: Mandibular gnathal lobe (fig.6a) apparently similar to that in B. armatus
Planche 2 Bradyidius arnoldi female:
1 - Rostrum with nondivergent and parallel rami.
2 - Points of last thoracic segment long, reaching nearly posterior third of genital segment.
Planche 3 Bradyidius arnoldi male:
1 - P5 biramous.
2 - Endopod of left P5 2-segmented. A1 reaching caudal rami.

Références complémentaires

Suarez-Morales & Gasca, 1998 a (p.107); Markhaseva, 1998 (p.250, Fig.2)

Distribution

NZ: 1

Carte de distribution de Bradyidius arnoldi par zones géographiques


Localisations

Citations

N: 2

Dimensions (mm)

(553) F: 1,67; M: 1,23; 1,19; {F: 1,67; M: 1,19-1,23}

Remarques

Dernière mise à jour : 30/12/2014