Oncaea pumilis - Species Card - Marine Planktonic Copepods

Oncaea pumilis Heron, 1977 (F,M)

Taxonomy

Order Cyclopoida

details

Family Oncaeidae

details

Genus Oncaea

details list species for this Genus

Abbreviations or symbols

References

List of the studied authors

Heron, 1977 (p.75, Descr.F, figs.F); Heron & al.,1984 (p.472, Descr.M, figs.F,M,); Malt & al., 1989 (p.957, Rem.M, figs.M); Böttger-Schnack & Schnack, 2009 (p.131, Table 5: p.140: Rem.); Vives & Shmeleva, 2010 (p.322, figs.F,M, Rem.)

Figures

Plate 1 issued from : G.A. Heron in Antarct. Res. Ser. Washington, 1977, 26. [p.76, Fig.23, h-u].
Female (from SW Pacific-Antarctic area): h, habitus (lateral; scale bar: X); i, posterior of last prosomal segment and urosome (lateral; scale bar: Y); j, urosome (dorsal; lacking caudal setae; scale bar: Y); k, left A2 (lacking proximal spine on terminal segment; scale bar: Y); l, labrum (scale bar: Z); m, right Md (scale bar: Z); n, right Mx1 (scale bar: Z); o, right Mx2 (scale bar: Z); p, right Mxp (scale bar: Y); q-t, P1 to P4 (scale bar: Y); u, P5 (scale bar: Z).

Species Oncaea pumilis - Plate 2 of morphological figures

Plate 2 issued from : G.A. Heron, T.S. English & D.M. Damkaer in J. Crustacean Biol., 1984, 4 (3). [p.471, Fig.12, D-J].
Female (from Arctic): D, anal segment and caudal rami (scale bar: w); E, left A2 (scale bar: v).

Male: F, habitus (lateral; scale bar: v); G-H, posterior of last prosomal segment and urosome (lateral, dorsal, respectively; scale bar: w); I, left Mxp (scale bar: x); J, P5 (scale bar: x).

Complementary References

List of the studied authors

Razouls & al., 2000 (p.343, tab. 4, Appendix)

Distribution

NZ: 3 + 1 doubtful

Distribution map of Oncaea pumilis by geographical zones

Distribution map of Oncaea pumilis for the Zone Mediterranean Sea, Black Sea

Distribution map of Oncaea pumilis for the Zone Antarctic

Localisations

Geographical glossary

Antarctic (SW Pacif.), ? E Medit. (Lebanon), Norwegian Sea, Arctic

Quotations

N: 3

Dimensions (mm)

References of the authors concerning dimensions

(675) F: 0,6-0,5; M: 0,56-0,46; (679) F: 0,52; 0,51; (697) M: 0,48; {F: 0,50-0,60; M: 0,46-0,56}

Remarks

Sampling depth (Antarct.) : 1000-2000 m.
The geographical distribution of this species is surprising.
The comparison of the male figures by Heron and those by Malt does not appear quite convincing.
For Heron & al. (1984, p.472), the male may be separated from other species by the comparatively slender genital segment (seen in lateral view), and the long anal segment and caudal ramus relative to the preceding orosomal segments. The prosomes of many specimens were abnormally expanded, prsumably deformed by internal cystic growth.

Last update : 27/01/2015

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