Species Card of Copepod
Calanoida ( Order )
    Spinocalanoidea ( Superfamily )
        Spinocalanidae ( Family )
            Spinocalanus ( Genus )
Spinocalanus horridus  Wolfenden, 1911   (F,M)
Syn.: Spinocalanus abyssalis : Tanaka, 1937 (part., p.253, figs.F, no M); Brodsky, 1950 (1967) (part., p.132, figs.F, no M); Minoda, 1971 (part., p.22); Damkaer, 1975 (part., p.37);
S. spinosus : Farran, 1929 (p.208, 227, Rem.); Tanaka, 1956 c (p.390, figs.F);
? Spinocalanus sp A Roe, 1975 (p.301, fig.M)
Ref.:
Wolfenden, 1911 (p.216, Descr.F, figs.F); Sewell, 1948 (p.513); Park, 1970 (p.475, 491, figs.F, Rem.); Damkaer, 1975 (p.37, figs.F,M, Rem.); Gardner & Szabo, 1982 (p.194, figs.F,M); Brodsky & al., 1983 (p.267, figs.F, Rem.); Bradford-Grieve & al., 1999 (p.878, 914, figs.F); Park & Ferrari, 2009 (p.143, Appendix 1); Bode & al., 2017 (p.600, Table I, fig. 2, 3, 4, morphology vs genetic).
Species Spinocalanus horridus - Plate 1 of morphological figuresissued from : Brodsky K.A., Vyshkvartseva N.V., Kos M.S. & Markhaseva E.L. in Opred. Faune SSSR, 1983, 135. [p.269, Fig.125].
Female.


Species Spinocalanus horridus - Plate 2 of morphological figuresissued from : Brodsky K.A., Vyshkvartseva N.V., Kos M.S. & Markhaseva E.L. in Opred. Faune SSSR, 1983, 135. [p.268, Fig.124].
Female.


Species Spinocalanus horridus - Plate 3 of morphological figuresissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., V (3). [p.390, Fig.14]. As Spinocalanus spinosus.
Female: a, habitus (dorsal); b, head (right side); c, last thoracic segment and genital somite (right); d, Mxp; z, P1.


Species Spinocalanus horridus - Plate 4 of morphological figuresissued from : D.M. Damkaer in NOAA Technical Report NMFS CIRC-391, Seattle, 1975. [p.38, Fig.69-74, p.63, Fig.153].
Female: 69, habitus (dorsal); 70, idem (left side); 71, gnathobase of Mx1; 72, Mx2; 73, Mxp; 74, P1; 153, terminal segments of A1.


Species Spinocalanus horridus - Plate 5 of morphological figuresissued from : D.M. Damkaer in NOAA Technical Report NMFS CIRC-391, Seattle, 1975. [p.39, Fig.75-82].
Female: 75, P2; 76, P3; 77, P4.

Male: 78, habitus (dorsal); 79, idem (left side); 80, masticatory edge of Md; 81, Mxp; 82, P5.


Species Spinocalanus horridus - Plate 6 of morphological figuresIssued from : T. S. Park in Bull. Mar. Sc., 1970, 20 (2). [p.492, Figs.66-70].
Female (from G. of Mexico): 66, habitus (lateral right side); 67, idem (dorsal); 68, basipod of Mxp; 69, P2 (posterior); 70, P4 (posterior), 2nd and 3rd exopod segments broken off).
Nota: lateral side of metasome covered by spinules.


Species Spinocalanus horridus - Plate 7 of morphological figuresissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.216, Fig.7].
Female (from SW Ascension Is.): habitus (lateral).


Species Spinocalanus horridus - Plate 8 of morphological figuresissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXV, figs.1-2].
Female: 1, last three thoracic segments (lateral); 2, Mxp.

Compl. Ref.:
Hardy & Gunther, 1935 (1936) (p.157, Rem.); Buchanan & Sekerak, 1982 (p.41, Table 2: vertical distribution, Rem.: p.48); Kosobokova, 1989 (p.27); Richter, 1994 (tab.4.1a); Shih & Young, 1995 (p.74); Razouls & al., 2000 (p.343, tab. 4, Appendix); Kosobokova & al., 2007 (p.923: Tab.2, 6, fig.2); Blachowiak-Samolyk & al., 2007 (p.2716, Table 2); Blachowiak-Samolyk & al., 2008 (p.2210, Table 3, biomass); Galbraith, 2009 (pers. comm.); Park & Ferrari, 2009 (p.143, Table 4, Appendix 1, biogeography); Kosobokova & Hopcroft, 2010 (p.96, Table 1, fig.7); Kosobokova & al., 2011 (p.29, Table 2, figs.4, 8, Rem.: Arctic Basins); Smoot & Hopcroft, 2016 (p.1, fig.7, vertical distribution)
NZ: 13

Distribution map of Spinocalanus horridus by geographical zones
Loc:
Antarct. (SW Atlant., SW Pacif.), sub-Antarct. (South Georgia), off SW Ascension Is., E Atlant. (11°N-25°S), G. of Mexico, Greenland (in Richter, 1994, p.14), Fram Strait, Spitsbergen, Arct. (Nansen Basin, Amundsen Basin, Makarov Basin, Canadian abyssal plain, Beaufort Sea, Canada Basin, W Baffin Bay), off British Columbia, China Seas (South China Sea), Japan, Pacif. (NE & NW)
N: 17
Lg.:
(10) F: 2,35; (13) F: 3-1,95; M: 2,9-2; (35) F: 2,45; 2,3; (55) F: 2,47; (88) F: 2,36-2,32; (1001) F: 2,42-2,18; (1252) F: 2,33-2,50; {F: 1,95-3,00; M: 2,00-2,90}.
(1252) F: Pr/Ur = 2,0-2,8.
Rem.: bathy-abyssopelagic.
Sampling depth (Antarct.) : 1000-2000 m. 800-1000 m (in Bode & al., 2017 at 11°N-25°S).
Damkaer and Brodsky & al. do not agree on the synonymies (Cf. S. dorsispinosus Male & S. longispinus Female).
According to Vervoort (1946, p.154) this species is synonym of Spinocalanus spinosus.
Bode & al. (2017, p.612) underline that the high morphological similarities explain, why species initially described as S. stellatus and S. longispinus are currently all synonymised with S. horridus.
Last update : 27/03/2020
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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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