Platycopia tumida - Species Card - Marine Planktonic Copepods

Species Card of Copepod

Platycopioida ( Order )	details
Platycopiidae ( Family )	details
Platycopia ( Genus )	details	List species for this Genus

Platycopia tumida (C.B. Wilson, 1935) (F,M)

Abbreviations or symbols

Syn.:

Arenocalanus tumidus C.B. Wilson, 1935 (p.7: fig.F)

Ref.:

(

List of the studied authors )

M.S. Wilson, 1946 (p.9, Redescr., figs.F,M); Ohtsuka & Boxshall, 1994 (p.166)

Species Platycopia tumida - Plate 1 of morphological figures

issued from : M.S. Wilson in Smithson. misc. Collns, 1946, 106 (9). [p.11, Fig.2].
Female (from mount Desert Island, Maine): A, A1; B, Mx1; C, Mx1 (proximal spine of masticatory lobe, enlarged); D, P1; E, P4; F, P5.
Nota: A1 22-segmented, 8 aesthetascs. Eye spot present, small. Endopod of P5 2-segmented, the whole bearing 6 spines.

Male: G, A1; H, endopod of P4; I, P5.
Nota: A1 15-segmented. Exopod of P5 3-segmented, distal segment of endopod with 5 spines.

Species Platycopia tumida - Plate 2 of morphological figures

issued from : M.S. Wilson in Smithson. misc. Collns, 1946, 106 (9). [p.7, Fig.1, H-I].
Female: H, P2; I, endopod of P3.

Both A1 male nongeniculate.
Sexual dimorphism present in P5.
A2 exopod 6-segmented.
Exopod of Md indistinctly 3-segmented.
Mx2 not extremely modified.
Syncoxa of Mxp with 2 setae ......
P1 with 2-segmented exopod and 2-segmented endopod.
Exopod of P2 to P5 having inner setae; P2-P5 with outer spines on 1st exopod segment..... Platycopia...... 3 - 1st and 2nd exopod segments of P3 to P5 of female lacking inner setae or spines..... 4 - Endopod of P2 3-segmented.

NZ:

Distribution map of Platycopia tumida by geographical zones

Species Platycopia tumida - Distribution map 2

Chart of 1996

Loc:

(

Geographical glossary )

NW Atlant. (tidal pool at Sea Wall, Mount Desert Island, Maine)

Lg.:

(

References of the authors concerning dimensions )

(604) F: ± 0,72; M < 0,72; {F: 0,72; M: 0,72}

Rem.:

According to M.S. Wilson (1946) the species differs from its congeners in having an eye spot and sexually dimorphic P4.

Last update : 28/01/2015


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