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The paper provides data on the current location of the type specimens of Lacerta viridis media Lantz et Cyrén, 1920 as on December 1, 2018. In the collections of ZISP, NHM and NMG 17 syntypes were identified during our study, ten of which appeared to be lost. According to catalogue records, other type specimens of this taxon likely were also stored in NMG, but this cannot be established for sure due to the loss of part of the collection. It is possible that part of the type specimens is stored in the Göteborgs Naturhistoriska Museum, as the majority of the Cyrén’s collections is kept there. The herpetological collection of NM KhNU has two specimens of L. media, coming from the collection of the Caucasian Museum. Most probably these lizards were received from Tiflis for study by A.M. Nikolsky, who lived and worked in Kharkov from 1903 to 1942. However, these specimens cannot be attributed to the type series of this species as their localities data are absent from the list of Lantz and Cyrén. The designation of the lectotype by Šmíd et al. (2014) is considered invalid, as it does not correspond to ICZN rules. To ensure the stability of the nomenclature we designate herein the specimen ZISP 12387 as the lectotype of L. viridis media. The history of the taxon description is given. It is demonstrated that O. Cyrén (1933) was first who upgraded the status of this taxon to a species level, using a binomen.

Review of type specimens of Lacerta media Lantz et Cyrén, 1920 (Sauria: Lacertidae)