Species Card of Copepod
Monstrilloida ( Order )
    Monstrillidae ( Family )
        Monstrilla ( Genus )
Monstrilla nasuta  Davis & Green, 1974   (F)
Ref.:
Davis & Green, 1974 (p.60, Descr.F, figs.F); Huys & Boxshall, 1991 (p.155, 164, 465, fig.F); Grygier, 1995 a (p.72)
Species Monstrilla nasuta - Plate 1 of morphological figuresissued from : R. Huys & G.A. Boxshall in Copepod Evolution, The Ray Society, 1991. [p.164, Fig.2.5.7].
Female (from Resolute Bay, Canada): A, rostral projection (dorsal); B, idem (lateral view).

Nota: After Huys & Boxshall (1991, p.155), this species is the only monstrilloid with an anteriorly directed structure in the adult; in other monstrilloids the rostrum is either absent or represented by a slight extension of the anterior margin of the dorsal cephalic shield wrapped around the frontal surface of the cephalothorax.. The authors interpret the presence of a rostrum of M. nasuta as a secondary condition, probably resulting from heterochrony.


Species Monstrilla nasuta - Plate 2 of morphological figuresissued from : C.C. Davis & J.M. Green in Int. Revue ges. Hydrobiol., 1974, 59 (1) [p.59, Figs.7-8].
Female (from 74°40'N, 94°47'W): 7, habitus (lateral); 8, forehead (dorsal; showing right A1).


Species Monstrilla nasuta - Plate 3 of morphological figuresissued from : C.C. Davis & J.M. Green in Int. Revue ges. Hydrobiol., 1974, 59 (1) [p.61, Figs.9-10].
Female: 9, left P5; 10, urosome (ventral; showing protuberance of the genital segment).

Compl. Ref.:
Bernier & al., 2002 (p.651, tab.1)
NZ: 1

Distribution map of Monstrilla nasuta by geographical zones
Loc:
Arct. (Canada: Resolute Bay)
N: 2
Lg.:
(738) F: 3,555; {F: 3,56}
Rem.: Beneath ice cover (in December).
Last update : 06/03/2020
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2022. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed January 22, 2022]

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Marine Planktonic Copepods

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