Primary references

• Linnaeus, C. 1758. Systema Naturae per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Editio decima, reformata. Holmiæ: impensis direct. Laurentii Salvii

Additional references

• Gvoždík, V., Jandzik, D., Lymberakis, P., Jablonski, D., Moravec, J. 2010. Slow Worm, Anguis fragilis (Reptilia: Anguidae) as a species complex: Genetic structure reveals deep divergences. Molecular Phylogenetics and Evolution 55(2): 460–472. DOI: 10.1016/j.ympev.2010.01.007 Reference page. 

• Gvoždik, V., Benkovský, N., Crottini, A., Bellati, A., Moravec, J., Romano, A., Sacchi, R. & Jandzik, D. 2013. An ancient lineage of slow worms, genus Anguis (Squamata: Anguidae), survived in the Italian Peninsula. Molecular Phylogenetics and Evolution 69(3): 1077–1092. DOI: 10.1016/j.ympev.2013.05.004 Reference page. 

• Jablonski, D., Jandzik, D., Mikulíček, P., Džukić, G., Ljubisavljević, K., Taznakov, N., Jelić, D., Thanoy, E., Moravec, J. & Gvoždík, V. 2016. Contrasting evolutionary histories of the legless lizards slow worms (Anguis) shaped by the topography of the Balkan Peninsula. BMC Evolutionary Biology 16: 99. DOI: 10.1186/s12862-016-0669-1 Reference page. 

Links

• Uetz, P. & Hallermann, J. 2020. Anguis . The Reptile Database. Accessed on 8 November 2017.