Species Card of Copepod
Calanoida ( Order )
    Arietelloidea ( Superfamily )
        Augaptilidae ( Family )
            Euaugaptilus ( Genus )
Euaugaptilus affinis  Sars, 1920   (F)
Syn.: ? Euaugaptilus pseudaffinis Brodsky, 1950 (1967) (p.380, Descr.F, figs.F); Grice & Hülsemann, 1967 (p.36, Rem.); Matthews, 1972 (p.40, Rem.); Yamaguchi & al., 2002 (p.1007, tab.1); Ikeda & al., 2006 (p.203); Ikeda & al., 2006 (p.1791, Table 2)
Ref.:
Sars, 1920 c (p.13, Descr.F); 1925 (p.276, figs.F); Grice & Hülsemann, 1967 (p.36, Rem.); Matthews, 1972 (p.27); Mauchline, 1998 (p.73: M); Bradford-Grieve & al., 1999 (p.882, 940, figs.F); Vives & Shmeleva, 2007 (p.186, figs.F, Rem.)
Species Euaugaptilus affinis - Plate 1 of morphological figuresIssued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.LXXXVIII, figs.1-14].
Female: 1, habitus (dorsal); 2, idem (lateral left side); 3, forehead (lateral); 4, rostrum; 5, A2; 6, Md; 7, Mx1; 8, Mx2; 9, Mxp; 10, P1; 11, P2; 12, P3; 13, P5; 14, urosome (dorsal).


Species Euaugaptilus affinis - Plate 2 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.381, Fig.269]. As Euaugaptilus pseudaffinis. With doubt.
Female (from NW Pacific): habitus (dorsal and lateral right side); forehead (lateral); M, Md; Mx1; S1, P1; S5, P5.

Compl. Ref.:
Sewell, 1948 (p.504); De Decker & Mombeck, 1964 (p.12); Vives, 1982 (p.294); Shih & Young,1995 (p.67)
NZ: 5

Distribution map of Euaugaptilus affinis by geographical zones
Loc:
South Africa (E), Morocco-Mauritania, Azores-Canary Is., off Madeira, off Portugal, Bay of Biscay, Brazil, China Seas (South China Sea, in Shih & Young, 1995), ? NW Pacif., Station Knot.
N: 10 ?
Lg.:
(1) F: 5,4; ? (22) F: 5,1; {F: 5,40}
Rem.: Meso-bathypelagic. Known to occur at depths between 300 and 1000 m after Matthews (1972, p.27).
The male descibed by Grice & Hulsemann (1967) as Euaugaptilus sp 2 could be this species. According to the authors the characteristics pointed out by Brodsky (1950) to distinguish his E. pseudaffinis from E. affinis (differences in the length of A1 and A2, and the structure of P5) seem insufficient to distinguish the two forms. No difference is obvious between Brodsky's and Sars' figure of the P5 of the female.
According to Brodsky (1967, p.381) E. pseudaffinis differs from the closely related E. affinis Sars in the presence of a long antennal ramus, the length of A1, and the structure of P5.
The presence of this species in the South Chinese Sea and in the NW Pacific is to be confirmed. W. Zhang confirms the presence of this species in the Seas of China (comm. pers., 2006).
Vives & Shmeleva ( 2007, p.187) report the presence of this species in the Indian Ocean, near Madagascar.

In ''affinis"" Group after Matthews (1972, p.64) {See remarks in Euaugaptilus genus}
Last update : 04/12/2020
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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 24, 2021]

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