Calanoida ( Order )
    Arietelloidea ( Superfamily )
Discoidae Gordeeva, 1975 ( Arietelloidea )
Ref.: Gordeeva, 1975 (p.189); Bowman & Abele, 1982 (p.9); Razouls, 1982 (p.521); Huys & Boxshall, 1991 (p.419); Razouls, 1993 (p.306); Bradford-Grieve,1999 b (p.68, Def., Rem.); Ohtsuka & Huys, 2001 (p.461); Boxshall & Halsey, 2004 (p.12, 14; 49; 108: Def.; p.110: Clé des Genres); Vives & Shmeleva, 2007 (p.271, clé des G.); Andronov & Kosobokova, 2011 (p.38, Rem.)
Bradford-Grieve J.M., (2002 onwards). Key to calanoid copepod families. Version 1 : 2 oct 2002. http://www.crustacea.net/crustace/calanoida/index.htm
Rem.: 4 G.: Disco, Paradisco, Prodisco, Pertsovius.
For Andronov & Kosobokova (p.38-39) several species within the family Discoidae are very similar to each other; Park (1970) and Schulz 1993) noted their close similarity, which could warrant their placement within a unique taxonomic clade. The discovery of three additional species affiliated with this clade in the Arctic Ocean further warrants erection of a distinct genus: Pertsovius comprising henceforth 7 species.
(1) Disco Grice & Hulsemann, 1965
Ref.: Grice & Hulsemann, 1965 (p.256); Fosshagen, 1967 (p.319); Matthews, 1972 (p.4); Gordeeva, 1974 (p.841); 1974 a (p.1148); 1974 b (p.1414); 1975 (p.188); Razouls, 1982 (p.521); 1993 (p.306); Schulz, 1993 (p.200, Rem.); Mauchline, 1998 (p.66, 77: F; p.76: M); Bradford-Grieve,1999 b (p.69, Déf.); Schulz, 2003 (p.110, Rem.); Boxshall & Halsey, 2004 (p.110); Vives & Shmeleva, 2007 (p.272, spp. key)
Rem.: This genus is established by Grice and Hulsemann to include three females (males being unknown) determining each one three different species. In 1967, the male of D. inflatus was described as well as a second male not identified to one of the known species. The authors regard this genus as belonging to the family Augaptilidae, followed by Matthews (1972). Fosshagen (1967) estimates that the characteristics of the females hardly allow a such a classification. Gordeeva (1974 a and b) described several new species and creates in 1975 two new genera which are included in the new family of Discoidae.
Andronov & Kosobokova (2011, p.38) transfer 4 species earlier in the genus Disco within a new genus Pertsovius which includes henceforth 7 species.
Total (2011): 16 spp. + 1 unspecified.
(2) Paradisco Gordeeva, 1975
Ref.: Gordeeva, 1975 (p.192); Razouls, 1982 (p.524); 1993 (p.306); Schulz, 1993 (p.205); Mauchline, 1998 (p.73: F; p.74: M); Bradford-Grieve,1999 b (p.69, Déf.); Boxshall & Halsey, 2004 (p.110); Vives & Shmeleva, 2007 (p.286, spp. key)
Rem.: 4 spp.
Remarks on dimensions and sex ratio:
The average lengths of the females is 0,533 mm (n= 4; S= 0,084; Cv= 0,158) and of 0,520 mm for the males (n= 3; S= 0,115; Cv= 0,221). The ratio lengths (M/F) is 0,994 or 94,4% (n= 3; S= 0,052; Cv= 0,055).
(3) Pertsovius Andronov & Kosobokova, 2011
Ref.: Andronov & Kosobokova, 2011 (p.38)
Rem.: Type species: Pertsovius tridentatus. 7 spp.
(4) Prodisco Gordeeva, 1975
Ref.: Gordeeva, 1975 (p.189); Razouls, 1982 (p.525); 1993 (p.307); Mauchline, 1998 (p.76);Bradford-Grieve,1999 b (p.69, Déf.); Boxshall & Halsey, 2004 (p.110); Vives & Shmeleva, 2007 (p.289)
Rem.: 2 spp.

 Any use of this site for a publication will be mentioned with the following reference :

Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2012. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Available at http://copepodes.obs-banyuls.fr/en 
[Accessed May 20, 2013]

© copyright 2005-2012 CNRS, UPMC

Webmaster
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
UPMC - Paris Universitas

 

Version française
English version

 

Search

On the WEB of CNRS

 


Marine Planktonic Copepods

Marine Planktonic Copepods

 

Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins