Species Card of Copepod
Misophrioida ( Order )
    Speleophriidae ( Family )
        Archimisophria ( Genus )
Archimisophria squamosa  Alvarez, 1985   (F)
Ref.:
Alvarez, 1985 b (p.953, Descr.F, figs.F); Boxshall & Halsey, 2004 (p.223: fig.F)
Species Archimisophria squamosa - Plate 1 of morphological figuresissued from : M.P.J. Alvarez in J. Nat. Hist., 1985, 19. [p.954, Figs.1-4].
Female (from 24°08'S, 42°28'W): 1, habitus (dorsal); 2, urosome (ventral); 3, A1; 4, labrum (posterior view).
Scale bars: 0.1 mm.

Nota: Prosome apparently 4-segmented with the 1st free thoracic somite entirely covered by a carapace-like extension from the posterior margin of the cephalosome. Nauplius eye not observed. Urosome 6-segmented. Surface of prosome and all urosomal segments with a squamose-like ornamentation.


Species Archimisophria squamosa - Plate 2 of morphological figuresissued from : M.P.J. Alvarez in J. Nat. Hist., 1985, 19. [p.956, Figs.5-9].
Female: 5, A2; 6, idem (2nd endopod segment); 7, Md; 8, Md (mandibular gnathobase; other appendage); 9, Mxp.
Scale bar: 0.1 mm.

Nota: Endopod of A2 2-segmented with an incomplete suture in the 2nd segment.


Species Archimisophria squamosa - Plate 3 of morphological figuresissued from : M.P.J. Alvarez in J. Nat. Hist., 1985, 19. [p.957, Figs.10-14].
Female: 10, Mx1; 11, spines with a sensory apex of 1st endite of Mx1; 12, Mx2; 13, P1 (incomplete); 14, P2 (incomplete).
Scale bars: 0.1 mm.


Species Archimisophria squamosa - Plate 4 of morphological figuresissued from : M.P.J. Alvarez in J. Nat. Hist., 1985, 19. [p.958, Figs.15-20].
Female: 15 to 18, intercoxal plates, legs 1 to 4 respectively; 19, P3 (incomplete); 20, P4 (incomplete).

Scale bars: 0.1 mm.


Species Archimisophria squamosa - Plate 5 of morphological figuresissued from : M.P.J. Alvarez in J. Nat. Hist., 1985, 19. [p.954].
Female: Armature of A1 on segments 1 to 27.

NZ: 1

Distribution map of Archimisophria squamosa by geographical zones
Loc:
S Brazil
N: 1
Lg.:
(607) F: 1,6; {F: 1,60}
Rem.: hyperbenthic.
For Alvarez (1985, p.955) Mx1 shows a important feature: the 2-segmented condition of the exopod, which has a complete suture with 1 seta in the outer margin; this is a remarkable feature not observed in any other copepod group. The possession of the 2-segmented exopod (plesiomorphic character) is an indication that their phylogenetic position lies close to the base of the podoplean lineage.
Last update : 09/11/2013
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Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2014. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Available at http://copepodes.obs-banyuls.fr/en 
[Accessed October 31, 2014]

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