Metridia ignota - Fiche d'espèce - Copépodes planctoniques marins

Fiche d'espèce de Copépode

Calanoida ( Ordre )	détails
Metridinidae ( Famille )	détails
Metridia ( Genre )	détails	Liste des espèces pour ce Genre

Metridia ignota Esterly, 1906 (F)

Abréviations ou symboles

Ref.:

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Liste des auteurs analysés )

Esterly, 1906 a (p.71, Descr.F, fig.F); Sewell, 1913 (p.354); 1948 (p.557, 563); Brodsky, 1950 (1967) (p.305, fig.F)

Espèce Metridia ignota - Planche 1 de figures morphologiques

issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1906, 3 (5). [Pl.9, Fig.20].
Female (from San Diego, California): 20, forehead (lateral).

Nota: Caudal rami 6-times as long as broad and as long as the anal segment; the latter is only slightly shorter than the genital segment, and the genital segment is twice as long as the middle segment.
The basal segment of A1 has 3 straight spines, of which the middle one is the shortest.
P5 4-segmented, teminal segment with 3 bristles of about equal lengths; the 2nd segment has a spinulose bristle on the outer margin which reaches beyond the end of the last segment of the foot; the 3rd segment is provided with a stout spine on the outer margin.
Body very translucent, no pigment.

Ref. compl.:

(

Liste des auteurs analysés )

in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, comm. pers.)

NZ:

Carte de distribution de Metridia ignota par zones géographiques

Carte de distribution de Metridia ignota pour la Zone Océan Indien

Loc:

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Glossaire géographique )

NE Pacif. (California: San Diego), Indian (Bay of Bengal)

Lg.:

(

Références des auteurs concernant les dimensions )

(17) F: 5,8; {F: 5,80}

Rem.:

In vertical haul: 0-730 m. For Esterly (1906a, p.71) this species resembles Metridia princeps, but the shape of the head, the relative lengths of the urosomal segments, and P5 will distinguish the two.

Dernière mise à jour : 17/01/2015