Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Scolecitrichidae ( Family )
            Scaphocalanus ( Genus )
Scaphocalanus subbrevicornis  (Wolfenden, 1911)   (F,M)
Syn.: Amallophora subbrevicornis Wolfenden, 1911 (p.262, Descr.F, figs.F);
? Scolecithrix longifurca Giesbrecht, 1888; 1892 (p.266, figs.F);
no Scaphocalanus subbrevicornis : Vervoort, 1951 (p.116, figs.F,M, Rem.); Vervoort, 1957 (p.110); Tanaka, 1960 (p.43, figs.F, juv.M); 1961 a (p.173, fig.F,M, Rem.); Bradford, 1971 b (p.23, fig.83: F); Gardner & Szabo, 1982 (p.292, figs.F, M); Bradford & al., 1983 (p.101, figs.F,M);
Scaphocalanus gracilicauda Tanaka, 1937 (p.262, Descr.M, figs.M); Sewell, 1948 (p.560); Tanaka, 1961 (p.173); Park, 1982 (p.77, Rem.);
Scaphocalanus gracilicaudatus : Brodsky, 1950 (1967) (p.256, figs.M); Bradford & al., 1983 (p.93, 99, 101, Rem., figs.F,M. Le (M) a été parfois confondu avec celui de S . longifurca ;
Scaphocalanus macropes Tanaka, 1953 (p.132: nom. nud.); 1961 a (p.173, Rem.); Park, 1982 (p.77)
Farran, 1929 (p.209, 249, figs.F, Rem.); C.B. Wilson, 1950 (p.331, fig.F); Brodsky, 1950 (1967) (p.254, figs.F, Rem.); Vaupel-Klein, 1970 (p.4, 19); Björnberg & al., 1981 (p.639, figs.F,M); Park, 1982 (p.78, 117, Rem.F, figs.F); Razouls, 1994 (p.123, figs.F, Rem.)
Species Scaphocalanus subbrevicornis - Plate 1 of morphological figuresissued from : G.P. Farran in British Antarctic (\"Terra Nova\") Expedition, 1910. Natural History Reports. Zoology. Vol. VIII. Crustacea., 1929. [p.249, Fig.16]
Female: a, exopodite of second foot; b, fifth foot.

Species Scaphocalanus subbrevicornis - Plate 2 of morphological figuresissued from : T. Park in Biology of the Antarctic Seas XI, Antarct. Res. Ser, 1982, 34. [p.118, Fig.26].
Female: a, forehead ( lateral); b, last thoracic segment and urosome (lateral left side); c, genital segment (lateral); d, idem (lateral); e Mx1; f, P1 (anterior); g, P2 (posterior); h, P3 (posterior); i, P4 (posterior); J, P5 (posterior); k, inner spine of P5.
Nota: Urosome about 33/100 length of prosome. All cephalosomal appendages as in S. farrani except Mx1.

Species Scaphocalanus subbrevicornis - Plate 3 of morphological figuresIssued from : K.A. Brodskii in Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR, 1950, 35 (Israel Program for Scientific Translations, Jerusalem, 1967) [p.254, Fig.161].
Female (from NW Pacif.): habitus (dorsal and lateral right side); R, rostrum; S1, P1; S5, P5.
Nota: This species differs from S. brevicornis, the abdomen of the female is shorter (much more than 1/3 length of cephalothorax; anal segment shorter; the inner lateral bristles of P5 are more erect (these bristles have a clearly incurvate distal part in S. brevicornis).

Species Scaphocalanus subbrevicornis - Plate 4 of morphological figuresissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.263, Fig.37]. As Amallophora subbrevicornis.
Female: a, urosome (dorsal); b, P2; c, P5.

Species Scaphocalanus subbrevicornis - Plate 5 of morphological figuresissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1961, IX (1). [p.176, Fig.120].
Female: a, last thoracic segment and genital segment (lateral, left side); b, urosome (dorsal); c, exopod of P1; d, P2 (part.-; e, P2; f, P5.

Species Scaphocalanus subbrevicornis - Plate 6 of morphological figuresIssued from : O. Tanaka in Japanese J. Zool., 1937, VII, 13. [p.263, Fig.12]. As Scaphocalanus gracilicauda.
Male (from coast of Heda, Japan): a, habitus (dorsal); b, forehead (lateral); c, abdomen (lateral); d, rostrum; e, P5; f, P1.

Species Scaphocalanus subbrevicornis - Plate 7 of morphological figuresIssued from : C. Razouls in Ann. Inst. océanogr., Paris, 1994, 70 (1). [p.123]. Caractéristiques morphologiques de Scaphocalanus subbrevicornis femelle et mâle adultes.
Terminologie et abbréviations: voir à Calanus propinquus.

Compl. Ref.:
Sewell, 1948 (p.574); Grice, 1963 a (p.495); Grice & Hulsemann, 1965 (p.224); 1967 (p.16); Furuhashi, 1966 a (p.295, vertical distribution in Oyashio region, Table 6), 7; Minoda, 1971 (p.29); Roe, 1972 (p.277, tabl.1, tabl.2); Vives, 1982 (p.292); Gowing & Wishner, 1986 (p.939, tab.3, gut contents); Lozano Soldevilla & al., 1988 (p.59); Voronina & Kolosova, 1999 (p.71); Razouls & al., 2000 (p.343, tab. 5, Appendix); Yamaguchi & al., 2002 (p.1007, tab.1); Kuriyama & Nishida, 2006 (p.300: Tab.II; p.309: Tab.III, fig.7, vertical distribution); Schnack-Schiel & al., 2008 (p.1046: Tab.2); Galbraith, 2009 (pers. comm.); Park & Ferrari, 2009 (p.143, Table 3, 7: common deep water species, Appendix 1, biogeography); Homma & al., 2011 (p.29, Table 3, abundance, feeding pattern: detritivores); Tutasi & al., 2011 (p.791, Table 2, abundance); Sano & al., 2013 (p.11, Table 9, food habits); Bonecker & a., 2014 (p.445, Table II: frequency, horizontal & vertical distributions); Dias & al., 2019 (p.1, Table II, IV, occurrrence, vertical distribution).
NZ: 13 + 1 doubtful

Distribution map of Scaphocalanus subbrevicornis by geographical zones
Antarct. (Weddell Sea, S Atlant., Indian, SW & SE Pacif.), sub-Antarct. (Indian, SW & SE Pacif.), NE Atlant. (30-60°N), Canary Is., Brazil, off Rio de Janeiro, The Campos Basin, off Amazon, off E Caribbean, W Indian, Philippines, Japan, Izu region, off SE Hokkaido, Station Knot, Okhotsk Sea, Bering Sea, S Aleutian Is., Station "P", Hawaii, off British Columbia, off California (Santa Catalina Basin), Galapagos-Ecuador, ? off NW New Zealand.
N: 31
(10) F: 1,75; (22) F: 2,1-1,75; (35) F: 1,94-1,91; (76) F: 2,18-1,84; (108) F: 2,03-1,95; M: 1,8-1,65; (128) M: 1,75; (199) F: 1,9-1,67; M: 1,67-1,52; (1000) F: 1,9 ± 0,1; {F: 1,67-2,18; M: 1,52-1,80}
Rem.: meso-bathypelagic.
Sampling depth (Antarct., sub-Antarct.) : 0-1000 m.
Distributional range (m) from Roe (1972) Day: 660-720, Night: 450-1000 (in Kuriyama & Nishida, 2006).
Bradford & al. (1983) and Park (1982) are not in line with the synonymies, the former not having had knowledge of the publication of the latter.
Certain locality records are to be confirmed.
See remarks in Scaphocalanus difficilis.
Last update : 19/01/2021
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed July 21, 2024]

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