Calanoida ( Order )
    Ryocalanoidea ( Superfamily )
Ryocalanidae Andronov, 1974 ( Ryocalanoidea )
Ref.: Andronov, 1974 a (p.1005); Razouls, 1982 (p.136); Bowman & Abele, 1982 (p.10); Park, 1986 (p.191, 194); Huys & Boxshall, 1991 (p.419); Andronov, 1991(p.133); Razouls, 1993 (p.309); Chihara & Murano, 1997 (p.898); Ohtsuka & Huys, 2001 (p.445, 461); Boxshall & Halsey, 2004 (p.15; 49; 182: Def.); Vives & Shmeleva, 2007 (p.995): Markhaseva, 2012 (p.148, 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.: Andronov created the family Ryocalanidae for the monotypic genus Ryocalanus infelix. The family can be defined by the fused segments 8 and 9 of the A1, the structure and segmentation of the legs as in the Spinocalanidae family, the articulation of the geniculated antennula between the segments 22 and 23 (and not between the segments 18 and 19 as in the majority of the other genera).
1 G.: Ryocalanus.
(1) Ryocalanus Tanaka, 1956
Ref.: Tanaka, 1956 b (p.1); 1956 c (p.404); Razouls, 1982 (p.136); Razouls, 1993 (p.309); Bradford-Grieve, 1994 (p.93, Déf.); Chihara & Murano, 1997 (p.898); Mauchline, 1998 (p.78: F; p.80: M); Shimode & al., 2000 (p.133: clé spp.); Bradford-Grieve, 2004 (p.287); Boxshall & Halsey, 2004 (p.184: Def., Clé des espèces); Vives & Shmeleva, 2007 (p.995); Markhaseva, 2012 (p.149, Rem.: 2 groups)
Rem.: Brodsky (1980: pers. comm.) indicates that Ryocalanus should be spelled as Riocalanus. Type: Type: Ryocalanus infelix Tanaka,1956 . 7 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 
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