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Copépodes planctoniques marins
Disseta scopularis  Brady, 1883   (F,M)
Taxonomy
Ordre Calanoida
Superfamille Arietelloidea
Famille Heterorhabdidae

Synonymie

Leuckartia scopularis Brady, 1883 (p.51, Descr.M, figs.M);
Disseta maxima Esterly, 1911 (p.330, figs.F); Sewell, 1948 (p.553, 563); C.B. Wilson, 1950 (p.198); Brodsky, 1950 (1967) (p.344, figs.F); Lee & al., 1971 (p.1151); Galbraith, 2009 (pers. comm.)

Références

A. Scott, 1909 (p.134, figs.M); Sewell, 1947 (Rem.: p.189); C.B. Wilson, 1950 (p.198, Redescr.F,M, figs.F,M, Rem.); Tanaka, 1964 a (p.34, figs.F,M); Chihara & Murano, 1997 (p.816, Pl.117: F,M); Park, 2000 (p.18, figs.F,M, Rem.)

Figures

Planche 1 issued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.156, Fig.4].
Female: a, habitus (left side); b, c, forehead (left, dorsal, respectively); d, e, urosome (left, dorsal, respectively); f, g, genital somite (left, ventral, respectively); h, left Mx1 (posterior); i, exopod of P1 (anterior); j, exopod of P2 (anterior).

Nota: Dorsally, genital somite relatively long, with tubercular lateral swellings; P5, 2nd exopodal segment with a long outer spine.
Planche 2 issued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.157, Fig.5];
Female: a, exopod of P3 (anterior); b, exopod of P4 (anterior); c, exopod of P5 (anterior).

Male: d, P5 (anterior); e, exopod of left P5 (posterior); f, idem (with proximal and distal parts omitted), anterior; g, exopod of right P5 (posterior); h, idem (anterior); i, idem (anterior, tilted counterclockwise); j, idem (posterior); k, idem (posterior, tilted clockwise). mpr = medial projection.
Planche 3 issued from : O. Tanaka in Publs Seto Mar. Biol. Lab., 1964, XII (1). [p.35, Fig.191].
Female: a, urosome (dorsal); b, last thoracic segment and genital somite (lateral left side); c, A2; d, masticatory edge of Md; ; e, Mx2; f, P1; g, P5.
Nota: A1 exceed the end of the furca by distal 5 segments. The urosome segments and furca are in the proportional lengths as 31:15:13:10:31 = 100

Male: h, habitus (dorsal); i, P5; j, 2nd and 3rd segments of exropod right P5.
Right A1 exceeds the end of the furca by distal 2 segments. Left A1 forming a grasping organ. The urosome segments and furca (left) are in the proportional lengths as 13:16:16:13:11:31 = 100.
Planche 4 issued from : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate XLII, Figs.1-9].
Male (from Banda Sea): 1, habitus (dorsal); 2, forehead (lateral); 3, last thoracic and genital segments (left side); 4, Md (biting edge); 5, Mx1; 6, Mx2; 7, P1; 8, end segment of exopodite of P4; 9, P5 (L= left leg, R = right leg).
Planche 5 issued from : C.B. Wilson in U.S. National Museum. Bull.100, 14 (4), 1950. [Pl.6, Figs.47, 48].
Female: 47, habitus (dorsal); 48, idem (lateral left side).
Planche 6 issued from : C.B. Wilson in U.S. National Museum. Bull.100, 14 (4), 1950. [Pl.6, Figs.49, 50].
Female (E tropical Pacific ): 49, P5.

Male: 50, P5.
Planche 7 issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1911, 6 (14). [Pl.29, Figs.54, 58]. As Disseta maxima.
Female (from San Diego Region): 54, forehead (lateral); 58, part of thorax and urosome (lateral, right side).

Nota: Left caudal ramus longer than the right by about one-third the length of the latter. A1 very long, one-fitth of their length longer than the body. Genital segment as long as the other three together, and the anal segment less than one-third the length of the genital. The genital eminence is at middle of the segment.


Nota after Brodsky (1950 [1967]): Diagnostic characters female: Inner bristle of 2nd segment of exopodite of P5 very long and massive, longer than distal segment of same exopodite.
Planche 8 issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1911, 6 (14). [Pl.30, Fig.79]. As Disseta maxima.
Female: 79, P5.
Planche 9 Issued from : G.S. Brady in Rep. Scient. Results Voy. Challenger, Zool., 1883, 8 (23). [Pl. XIV, Figs.1-5]
Male: 1, Right A1; 2, geniculating portion of left A1; 3, left P5 (on complete); 4, right P5; 5, urosome.
Planche 10 Disseta scopularis female:
1 - Dorsally, genital somite (Fig.4-e) relatively long, with tubercular lateral swellings.
2 - P5 2nd exopodal segment with a long outer spine (Fig.5-c).
Planche 11 Disseta scopularis male:
1 - Left P5 (Fig.5-f), 2nd exopodal segment without a large lateral spiniform process.
2 - Left P5 (Fig.5-d), 2nd endopodal segment without an anterodistal lobe; 3nd exopodal segment with a large terminal spine.

Références complémentaires

Sewell, 1948 (p.558, 560, 562, Rem.); Itoh, 1970 a (p.5: tab.1); Galbraith, 2009 (comm. pers.); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, comm. pers.)

Distribution

NZ: 8

Carte de distribution de Disseta scopularis par zones géographiques


Localisations

Indonesia-Malaysia (Molucca Sea), Philippines, China Seas (East China Sea), Japan (Izu, Sagami Bay), off British Columbia, off San Diego, Pacif. (tropical), off Peru, SW Galapagos, NE Marquesas Is., off Chile

Citations

N: 9

Dimensions (mm)

(5) M: 9,75; (121) F: 9,6; M: 8,76; (137) F: 11-10; M: 9,5-9; (143) F: 9,4; (824) F: 10,66-8,66; M: 10-8,5; {F: 8,66-11,00; M: 8,50-10,0}

Remarques

Dernière mise à jour : 17/10/2017