Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda. Part 2 Author Neubauer, Thomas A. Author Harzhauser, Mathias Author Kroh, Andreas Author Elisavet, Georgopoulou Author Mandic, Oleg text ZooKeys 2014 429 13 46 http://dx.doi.org/10.3897/zookeys.429.7420 journal article http://dx.doi.org/10.3897/zookeys.429.7420 1313-2970-429-13 794E5F42F746425F996D5C6E64F89194 794E5F42F746425F996D5C6E64F89194 Taxon classification Animalia ORDO FAMILIA Gyraulus vrapceanus nom. n. Planorbis dubius Gorjanovic-Kramberger , 1890: 156, pl. 6, fig. 6 [non Planorbis dubius Hartmann, 1844]. Gyraulus (Gyraulus) dubius ( Gorjanovic-Kramberger ); Wenz 1923c : 1552 [non Hartmann 1844 ]. Etymology. Named after the type locality. Type locality. Vrapce (also read as Vrabce ; today within the city limits of Zagreb), Croatia. Age. Late Miocene (Early Pannonian, Slavonian). Syntype. Croatian Natural History Museum, Zagreb, coll. no. 5195-360/2 ( Milan et al. 1974 , p. 119). Discussion. The name Planorbis dubius was first used by Hartmann (1821 , p. 254) for an extant species from Zurich region in Switzerland. The name is not available from this publication, since Hartmann did not give a description or indication (see also AnimalBase project 2005-2014 ). He first described and thus formally introduced it in Hartmann (1844 , p. 111). Today its status is disputed. Gloeer (2002 , p. 253) ranked it as forma within Planorbis carinatus Mueller , 1774. Later, Gloeer and Pesic (2010) stated that Hartmann's material contained two different taxa, i.e. Planorbis planorbis and Planorbis carinatus , making Planorbis dubius a junior synonym of both. Finally, Kantor et al. (2010) listed it as accepted species in their catalogue of Russian continental mollusks. In summary, although the status of the extant species is doubtful, the name is available. This makes Planorbis dubius Gorjanovic-Kramberger , 1890 a primary homonym of Planorbis dubius Hartmann, 1844. Here follow Wenz (1923c) and classify the replacement name within Gyraulus .