(15) Tonnacypris strigata (O.F. Müller, 1776) comb. nov.

Cypris strigata O.F. Müller, 1776 was recorded under its junior synonym Cypris lutaria Koch, 1838, with various generic assignments, mainly as Eucypris lutaria (Koch, 1838) – now Tonnacypris lutaria – in all major synopses after 1900 (Alm 1915; Sars 1925; Klie 1938 a; Bronstein 1947; Meisch 2000). The species is here formally transferred to Tonnacypris as Tonnacypris strigata (O.F. Müller, 1776) comb. nov. This species is an unused older synonym of T. lutaria (Koch, 1838), which, for reasons of nomenclatural stability, we recommend not be revived. It is thus listed here as Tonnacypris lutaria .