Cypria Zenker, 1854

Meisch, Claude, Smith, Robin J. & Martens, Koen, 2019, A subjective global checklist of the extant non-marine Ostracoda (Crustacea), European Journal of Taxonomy 492, pp. 1-135 : 12

(3) Cypria Zenker, 1854

, Physocypria Vávra, 1897 and Keysercypria Karanovic, 2011

The species of the genera Cypria Zenker, 1854 and Physocypria Vávra, 1897 were recently rearranged, in parallel with the erection of the genus Keysercypria Karanovic, 2011 for a number of species extracted from Cypria and Physocypria ( Karanovic 2011, 2012). This approach uses as defining characters for the two original genera (a) the presence ( Physocypria ) / absence ( Cypria ) of the d2-seta on the walking leg and (b) the direction the ovary curve, up ( Cypria ) or down ( Physocypria ). The usage of these characters, as well as those used for the definition of the genus Keysercypria , produces genera that appear otherwise morphologically very diverse. Also, these characters cannot be seen in both living and fossil specimens. We conclude that there is no good phylogenetic reason at this stage to prefer the soft part characters over the traditional presence ( Physocypria ) or absence ( Cypria ) of marginal tubercles on the right valve, which is easily observable in both living and fossil specimens. A conservative approach is therefore adopted here, which follows the definitions of the genera Cypria and Physocypria as presented, for instance, by Meisch (2000) and we treat Keysercypria partly as a junior synonym of Cypria and partly as a junior synonym of Physocypria . Species that were allocated to Keysercypria by Karanovic (2011) are listed under their previous combinations (see also above).