Neomormonilla polaris - Species Card - Marine Planktonic Copepods

Neomormonilla polaris Sars, 1900 (F)

Taxonomy

Order Mormonilloida

details

Family Mormonillidae

details

Genus Neomormonilla

details list species for this Genus

Abbreviations or symbols

Synonymy

Mormonilla polaris Sars,1900 (p.120, Descr.F, figs.F); Harding, 1966 (p.17); Buchanan & Sekerak, 1982 (p.41, vertical distribution, Rem.: p.49); Hop & al., 2006 (p.182, Table 4); Kosobokova & al., 2011 (p.42, fig.4: considered as upper mesopelagic)

References

List of the studied authors

Ivanenko & Defaye, 2006 (p.722, Redescr.F, figs.F, Rem., p.724)

Figures

Plate 1 issued from : V.N. Ivanenko & D. Defaye in Crustaceana, 2006, 79 (6). [p.720, Fig.6, E].
Female (from 86.46°73'N, 136.51°03'E): E, distal (3rd) segment of A1.

Species Neomormonilla polaris - Plate 2 of morphological figures

Plate 2 issued from : V.N. Ivanenko & D. Defaye in Crustaceana, 2006, 79 (6). [p.721, Fig.7].
Female: A, Md (mandibular palp); B, Md (masticatory edge); C, Mx1 (distinctive seta indicated by arrow); D, Mxp.

Nota: 3rd segment of A1 ornamented with rows of setules. Urosomal somite 1 with or without P5 represented by two pairs of long setae on the ventral side (observed only one aberrant female). P1 : inner margin of coxa, basis, and proximal endopodal segments ornamented with groups of stout spinules ; middle part of distomedial seta of distal exopodal segment with stout barbs ; distal exopodal segments with small, curved proximal spinules. P2 : distomedial margin of distal endopodal segment ornamented with setules ; inner margin of 1st exopodal segment with row of spinules. P3 : distomedial margin of distal endopodal segment ornamented with setules ; inner margin of 1st exopodal segment with a row of spinules in distal and one in proximal parts of segment

Species Neomormonilla polaris - Plate 3 of morphological figures

Plate 3 issued from : V.N. Ivanenko & D. Defaye in Crustaceana, 2006, 79 (6). [p.723, Fig.8].
Female: A, P1: endopods, exopod, coxal and basal inner margins (posterior; small curved spinule of exopod arrowed); B, endopod and exopod of P2 (posterior; ornamentation with spinules arrowed); C, endopod and exopod of P3 (posterior; ornamentation with spinules arrowed); D, 1st somite of urosome and genital double-somite (another aberrant specimen).

Complementary References

List of the studied authors

Dvoretsky & Dvoretsky, 2010 (p.991, Table 2)

Distribution

NZ: 1

Distribution map of Neomormonilla polaris by geographical zones

Localisations

Geographical glossary

Arctic, Fram Strait, W Baffin Bay, S Barents Sea

Quotations

N: 6

Dimensions (mm)

References of the authors concerning dimensions

(134) F: 1,38; (959) F: 1,41-1,56; {F: 1,38-1,56}

Remarks

Ivanenko & Defaye (2006, p.722) remark : G.O. Sars (1900) descibed Mormonilla polaris from the Arctic Ocean and indicated the lack of differences between this species and Mormonilla minor Giesbrecht (1891). later, Farran (1908- synonymized this species with M. minor. For the authors this species requires re-establishing the validity of Mormonilla polaris and placing it in the new genus Neomormonilla

Last update : 24/01/2015

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