Gaetanus brachyurus - Fiche d'espèce - Copépodes planctoniques marins

Gaetanus brachyurus Sars, 1907 (F,M)

Taxonomy

Ordre Calanoida

détails

Superfamille Clausocalanoidea

détails

Famille Aetideidae

détails

Genre Gaetanus

détails liste des espèces pour ce genre

Abréviations ou symboles

Références

Liste des auteurs étudiés

Sars, 1907 a (p.10, Rem.F); Sars, 1925 (p.62, figs.F); Jespersen, 1934 (p.63); 1940 (p.22); Vervoort, 1952 e (n°46, p.3, fig.F); Grice & Hulsemann, 1967 (p.15, 23: Rem.); 1968 (p.324, 327: Rem.); Park, 1975 a (p.14, figs.F,M); Markhaseva, 1996 (p.183, figs.F,M)

Figures

Planche 1 issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.184, Fig.142].
Female (specimen from Kuril). Ce: forehead (lateral); Pmd: mandibular palp; GntbMd: gnathobase of Md (partial).

Planche 2 issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.185, Fig.143].
Female (specimen from Kuril Trench).

Species Gaetanus brachyurus - Planche 3 of morphological figures

Planche 3 issued from : T. Park in Bull. Mar. Sci., 1975, 25 (1). [p.16, Fig.2].
Male: A, habitus (lateral); B, C, forehead (lateral, dorsal); D, posterior part of metasome (lateral); E, posterior part of metasome and genital segment (dorsal); F, A2; G, distal part of Mx1; H, P1 (anterior); I, P5 (posterior); J, last two exopodal segments of left P5 (medial). P1, P5: legs.

Species Gaetanus brachyurus - Planche 4 of morphological figures

Planche 4 issued from : T. Park in Bull. Mar. Sci., 1975, 25 (1). [p.15, Fig.1].
Female: A, B, habitus (dorsal, lateral, respectively); C, D, posterior part of metasome and urosome (dorsal, lateral); E, forehead (lateral); F, A2; G, coxa of Mxp; H, P1 (anterior); I, coxa of P4 (partial, posterior).

Species Gaetanus brachyurus - Planche 5 of morphological figures

Planche 5 Issued from: G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XVIII, figs.9-10].
Female: 9, habitus (dorsal); 10, idem (lateral left side).

Planche 6 Gaetanus brachyurus female:
1 - Anterior part of cephalon with frontal spine.
2 - Exopodal segments 1 and 2 of A2 with 2 setae each. 2nd internal lobe of Mx1 with 5 setae.
3 - Exopodal segment 1 of P1 clearly 3-segmented; exopod with 3 external spines. Lateral plate of Mxp protopodite well developed.
4 - Spines of last thoracic segment straight, situated in about the middle of the posterior border of last thoracic segment (lateral view).
5 - Frontal spine strongly curved in direction to rostrum (lateral view). Exopodal segments 1 and 2 of A2 with 2 setae each.

Planche 7 Gaetanus brachyurus male:
1 - Cephalon with frontal spine.
2 - Exopodal segment 3 of P5 bilobated. It is 1.5-2.2 shorter than exopodal segment 2.
3 - Spines on last thoracic segment long, exceeding the posterior border of genital segment. Exopodal segment 3 of P5 bilobated with incomplete subdivision into lobes.
4 - Endopod of left P5 as long as 1/3 of exopodal segment 1 length. Exopodal segment 3 of left P5 less than half of exopodal segment 2 length.

Références complémentaires

Liste des auteurs étudiés

Sewell, 1948 (p.499); Grice & Hulsemann, 1968 (tab.2); Deevey & Brooks, 1977 (p.256, tab.2, Station "S"); Suarez-Morales & Gasca, 1998 a (p108)

Distribution

NZ: 6

Carte de distribution de Gaetanus brachyurus par zones géographiques

Distribution map of Gaetanus brachyurus for the Zone Indian Ocean

Cartes et graphiques additionels

Espèce Gaetanus brachyurus - Carte de distribution 3

Carte 3 Chart of 1996

Localisations

Glossaire géographique

Atlant (N temperate), G. of Mexico, Sargasso Sea, off Bermuda: Station "S" (32°10'N, 64°30'W), S Azores , Faroe Is., S Iceland, S Strait of Davis, W Indian, Kurile-Kamchatka, SE Pacif. (off Juan Fernandez Is.).

Type locality: North Atlantic (off N Canary Islands).

Citations

N: 8

Dimensions (mm)

Références de auteurs concernant les dimensions

(1) F: 6,4; (37) F: 7,15; (40) F: 5,75-5,58; M: 5,16; (67) F: 5; 6,42; 6,17; {F: 5,00-7,15; M: 5,16}

Remarques

épi-bathypélagique-?. 1000-1500 m in Sargasso Sea (Deevey & Brooks, 1977, station "S");

Voir aussi les remarques en anglais

Dernière mise à jour : 05/01/2015