Species Card of Copepod
Calanoida ( Order )
    Spinocalanoidea ( Superfamily )
        Spinocalanidae ( Family )
            Mimocalanus ( Genus )
Mimocalanus crassus  Park, 1970   (F,M)
Syn.: Mimocalanus sp. Grice & Hulsemann, 1967 (p.21, figs.M)
Ref.:
Park, 1970 (p.478, figs.F,M); Razouls, 1974 (1975 a) (p.498, tab. I, II, III; IV); Damkaer, 1975 (p.74, figs.F,M, Rem.); Brodsky & al., 1983 (p.322, figs.F, M, Rem.); Bode & al., 2017 (p.600, Table I, III, fig. 2, 3, 4, morphology vs genetic).
Species Mimocalanus crassus - Plate 1 of morphological figuresissued from : D.M. Damkaer in NOAA Technical Report NMFS CIRC-391, Seattle, 1975. [p.75, Fig.181-191; p.63, Fig.161].
Female: 161, terminal segments of A1; 181, habitus (dorsal); 182, idem (right lateral side); 183, masticatory edge of Md; 184, P1; 185, P2; 186, P3; 187, P4.

Male: 188, habitus (dorsal); 189, idem (left lateral side); 190, masticatory edge of Md; 191, P5.


Species Mimocalanus crassus - Plate 2 of morphological figuresIssued from : T. S. Park in Bull. Mar. Sc., 1970, 20 (2). [p.]179, Figs.1-12].
Female: 1, habitus (dorsal); 2, idem (lateral left side); 3, A2; 4, Md; 5, Mx1; 6, Mx2; 7, Mxp; 8, P1 (anterior).
Nota: Mx1 with 9 setae on outer lobe, 7 setae on basis, and 7+7+9 setae on endopod. Mx2: 1st lobe with 6 setae.

Male: 9, posterior part of metasome and urosome (dorsal); 10, Md; 11, P1 (anterior); 12, P5 (anterior).
Nota: mandible with reduced teeth on cutting edge and 2 setae on basis.


Species Mimocalanus crassus - Plate 3 of morphological figuresissued from : C. Razouls in Vie Milieu, (1974) 1975, 24 (3, sér.A). [p.500, Table I].
Female (after precedent authors) : Chetotaxy of Md. (Si = inner setae; St = terminal setae).


Species Mimocalanus crassus - Plate 4 of morphological figuresissued from : C. Razouls in Vie Milieu, (1974) 1975, 24 (3, sér.A). [p.500, Table II].
Female (after precedent authors) : Chetotaxy of Mx1. (Li = inner lobe: Le = outer lobe; SF =stout setae;


Species Mimocalanus crassus - Plate 5 of morphological figuresissued from : C. Razouls in Vie Milieu, (1974) 1975, 24 (3, sér.A). [p.501, Table III].
Female (after precedent authors) : Chetotaxy of Mx2. (Basi = basipodite; L = lobe; Endo = endopodite).


Species Mimocalanus crassus - Plate 6 of morphological figuresissued from : C. Razouls in Vie Milieu, (1974) 1975, 24 (3, sér.A). [p.502, Table IV].
Female (after precedent authors) : Chetotaxy of Mp. (Basi = basipodite; Ri = endopodite; Si = inner setae; Se = outer seta; St = terminal seta).


Species Mimocalanus crassus - Plate 7 of morphological figuresissued from : G.D. Grice & K. Hulsemann in Proc. U. S. natn.Mus., 1967, 122 (3583). [p.48, Figs.19-25]. As Mimocalanus sp. Male
Male (from Indian Ocean): 19, posterior end of thorax and urosome (lateral); 20, Md; 21, Mx1; 22, Mx2; 23, Mxp; 24, P1; 25, P5.


Species Mimocalanus crassus - Plate 8 of morphological figuresIssued from : V.N. Andronov in Russian Acad. Sci. P.P. Shirshov Inst. Oceanol. Atlantic Branch, Kaliningrad, 2014. [p.85, Fig.22: 10]. Mimocalanus crassus after Park, 1970.
Male P5.

Compl. Ref.:
Suarez-Morales & Gasca, 1998 a (p.111); Medellin-Mora & Navas S., 2010 (p.265, Tab. 2); Kosobokova & Hopcroft, 2010 (p.96, Table 1, fig.7); Kosobokova & al., 2011 (p.29, Table 2, fig.4, Rem.: Arctic Basins)
NZ: 5

Distribution map of Mimocalanus crassus by geographical zones
Loc:
Caribbean Sea, Caribbean Colombia, G. of Mexico, SE Atlant. (3°N-13°S), W Indian, Arct. (all polar Basins, Canada Basin, Makharov Basin, Amundsen Basin, Nansen Basin)
N: 7
Lg.:
(13) F: 1,27-0,95; M: 1,36-0,78; (67) M: 0,78; (88) F: 1,22-1; M: 1,3; (1252) F: 1,05-1,17; {F: 0,95-1,27; M: 0,78-1,36}.
(1252) F: Pr/Ur = 3,2-3,9.
Rem.: bathypelagic-abyssopelagic.
The species is close in habitus to M. cultrifer Farran (1908).
For Park (1970) the males described by Grice & Hulsemann (1967) from the Indian Ocean seem belong to M. crassus.
Last update : 24/03/2020
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed October 18, 2021]

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