{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T23:45:55Z","timestamp":1778629555986,"version":"3.51.4"},"reference-count":49,"publisher":"Walter de Gruyter GmbH","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Amphib.-Reptilia"],"published-print":{"date-parts":[[2021,10,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The slow-worm lizards (\n                    <jats:italic>Anguis<\/jats:italic>\n                    ) comprise five species occurring throughout most of the Western Palearctic. Although these species are relatively uniform morphologically \u2013 with the exception of\n                    <jats:italic>A.\u00a0cephallonica<\/jats:italic>\n                    , which exhibits a quite unique morphology \u2013 they are genetically deeply divergent. Here, we provide detailed distribution maps for each species and discuss their biogeography and conservation based on updated genetic data and a robust distribution database. We pay particular attention to the so called \u2018grey zone\u2019, which typically represents secondary contact zones and in some cases confirmed or presumed hybrid zones. Four of the five species live in parapatry, while only two species,\n                    <jats:italic>A.\u00a0cephallonica<\/jats:italic>\n                    and\n                    <jats:italic>A.\u00a0graeca<\/jats:italic>\n                    from the southern Balkans occur in partial sympatry. Further research should focus on the eco-evolutionary interactions between species in contact, including their hybridization rates, to reveal deeper details of the slow-worm evolutionary and natural history.\n                  <\/jats:p>","DOI":"10.1163\/15685381-bja10069","type":"journal-article","created":{"date-parts":[[2021,10,14]],"date-time":"2021-10-14T04:36:19Z","timestamp":1634186179000},"page":"519-530","source":"Crossref","is-referenced-by-count":14,"title":["The distribution and biogeography of slow worms (Anguis, Squamata) across the Western Palearctic, with an emphasis on secondary contact zones"],"prefix":"10.1163","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5394-0114","authenticated-orcid":true,"given":"Daniel","family":"Jablonski","sequence":"first","affiliation":[{"name":"Department of Zoology, Comenius University in Bratislava, Ilkovi\u010dova 6, Mlynsk\u00e1 dolina, 842 15 Bratislava, Slovakia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3490-3780","authenticated-orcid":true,"given":"Neftal\u00ed","family":"Sillero","sequence":"additional","affiliation":[{"name":"CICGE Centro de Investiga\u00e7\u00e3o em Ci\u00eancias Geo-Espaciais, Faculdade de Ci\u00eancias da Universidade do Porto (FCUP), Alameda do Monte da Virgem, 4430-146, Vila Nova de Gaia, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0092-4193","authenticated-orcid":true,"given":"Oleksandra","family":"Oskyrko","sequence":"additional","affiliation":[{"name":"Department of Zoology, Faculty of Science, Charles University, Vini\u010dn\u00e1 7, 128 44 Prague, Czech Republic"}]},{"given":"Adriana","family":"Bellati","sequence":"additional","affiliation":[{"name":"Department of Ecological and Biological Sciences, Tuscia University, Largo dell\u2019universit\u00e0 snc, 01100 Viterbo, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6035-8704","authenticated-orcid":true,"given":"Andris","family":"\u010ceir\u0101ns","sequence":"additional","affiliation":[{"name":"Daugavpils University, Department of Ecology, Daugavpils, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7594-571X","authenticated-orcid":true,"given":"Marc","family":"Cheylan","sequence":"additional","affiliation":[{"name":"CEFE, Univ Montpellier, CNRS, EPHE-PSL University, IRD, Biogeography and Ecology of Vertebrates, Montpellier, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2959-014X","authenticated-orcid":true,"given":"Dan","family":"Cog\u0103lniceanu","sequence":"additional","affiliation":[{"name":"University Ovidius Constan\u0163a, Faculty of Natural Sciences and Agricultural Sciences, Al. Universit\u0103\u0163ii 1, 900470 Constan\u0163a, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4292-5995","authenticated-orcid":true,"given":"Jelka","family":"Crnobrnja-Isailovi\u0107","sequence":"additional","affiliation":[{"name":"Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Ni\u0161, Vi\u0161egradska 33, 18000 Ni\u0161, Serbia"},{"name":"Department of Evolutionary Biology, Institute for Biological Research \u201cSini\u0161a Stankovi\u0107\u201d \u2013 National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia"}]},{"given":"Pierre-Andr\u00e9","family":"Crochet","sequence":"additional","affiliation":[{"name":"CEFE, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8505-3050","authenticated-orcid":true,"given":"Angelica","family":"Crottini","sequence":"additional","affiliation":[{"name":"CIBIO, Research Centre in Biodiversity and Genetic Resources, InBIO, Universidade do Porto, Campus Agr\u00e1rio de Vair\u00e3o, Rua Padre Armando Quintas, No 7, 4485-661 Vair\u00e3o, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1000-3144","authenticated-orcid":true,"given":"Igor","family":"Doronin","sequence":"additional","affiliation":[{"name":"Zoological Institute of the Russian Academy of Sciences, Universitetskaya Emb. 1, 199034 Saint Petersburg, Russia"}]},{"given":"Georg","family":"D\u017euki\u0107","sequence":"additional","affiliation":[{"name":"Department of Evolutionary Biology, Institute for Biological Research \u201cSini\u0161a Stankovi\u0107\u201d \u2013 National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia"}]},{"given":"Philippe","family":"Geniez","sequence":"additional","affiliation":[{"name":"CEFE, Univ Montpellier, CNRS, EPHE-PSL University, IRD, Biogeography and Ecology of Vertebrates, Montpellier, France"}]},{"given":"\u00c7etin","family":"Ilgaz","sequence":"additional","affiliation":[{"name":"Dokuz Eyl\u00fcl University, Faculty of Science, Department of Biology, Buca-\u0130zmir, Turkey"},{"name":"Dokuz Eyl\u00fcl University, Fauna and Flora Research Centre, 35610, Buca-\u0130zmir, Turkey"}]},{"given":"Ruben","family":"Iosif","sequence":"additional","affiliation":[{"name":"University Ovidius Constan\u0163a, Faculty of Natural Sciences and Agricultural Sciences, Al. Universit\u0103\u0163ii 1, 900470 Constan\u0163a, Romania"}]},{"given":"David","family":"Jandzik","sequence":"additional","affiliation":[{"name":"Department of Zoology, Comenius University in Bratislava, Ilkovi\u010dova 6, Mlynsk\u00e1 dolina, 842 15 Bratislava, Slovakia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2790-1522","authenticated-orcid":true,"given":"Du\u0161an","family":"Jeli\u0107","sequence":"additional","affiliation":[{"name":"Croatian Institute for Biodiversity, BIOTA Ltd, Zagreb, Croatia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7447-6691","authenticated-orcid":true,"given":"Spartak","family":"Litvinchuk","sequence":"additional","affiliation":[{"name":"Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, 194064 Saint Petersburg, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4389-2355","authenticated-orcid":true,"given":"Katarina","family":"Ljubisavljevi\u0107","sequence":"additional","affiliation":[{"name":"Department of Evolutionary Biology, Institute for Biological Research \u201cSini\u0161a Stankovi\u0107\u201d \u2013 National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5067-9600","authenticated-orcid":true,"given":"Petros","family":"Lymberakis","sequence":"additional","affiliation":[{"name":"Natural History Museum of Crete, School of Sciences and Engineering, University of Crete, Knossos Ave. 71409 Irakleio, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4927-493X","authenticated-orcid":true,"given":"Peter","family":"Mikul\u00ed\u010dek","sequence":"additional","affiliation":[{"name":"Department of Zoology, Comenius University in Bratislava, Ilkovi\u010dova 6, Mlynsk\u00e1 dolina, 842 15 Bratislava, Slovakia"}]},{"given":"Edv\u00e1rd","family":"Mizsei","sequence":"additional","affiliation":[{"name":"Department of Ecology, University of Debrecen, Debrecen, Hungary"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4114-7466","authenticated-orcid":true,"given":"Ji\u0159\u00ed","family":"Moravec","sequence":"additional","affiliation":[{"name":"National Museum, Department of Zoology, Prague, Czech Republic"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0963-8409","authenticated-orcid":true,"given":"Bart\u0142omiej","family":"Najbar","sequence":"additional","affiliation":[{"name":"University of Zielona G\u00f3ra, Faculty of Biological Sciences, Department of Zoology, Prof. Z. Szafrana 1, 65-616, Zielona G\u00f3ra, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5557-2338","authenticated-orcid":true,"given":"Maciej","family":"Pabijan","sequence":"additional","affiliation":[{"name":"Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30-387, Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5445-9250","authenticated-orcid":true,"given":"Mihails","family":"Pupins","sequence":"additional","affiliation":[{"name":"Daugavpils University, Department of Ecology, Daugavpils, Latvia"}]},{"given":"Patricia","family":"Sourrouille","sequence":"additional","affiliation":[{"name":"CEFE, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9944-4522","authenticated-orcid":true,"given":"Ilias","family":"Strachinis","sequence":"additional","affiliation":[{"name":"Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Natural Sciences, Aristotle University of Thessaloniki, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9375-9937","authenticated-orcid":true,"given":"M\u00e1rton","family":"Szabolcs","sequence":"additional","affiliation":[{"name":"Department of Tisza River Research, Institute of Aquatic Ecology, Centre for Ecological Research, Bem t\u00e9r 18\/C, 4026, Debrecen, Hungary"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5008-6012","authenticated-orcid":true,"given":"Evanthia","family":"Thanou","sequence":"additional","affiliation":[{"name":"Section of Animal Biology, Department of Biology, School of Natural Sciences, University of Patras, Rion University Campus, GR-26500 Patras, Greece"}]},{"given":"Elias","family":"Tzoras","sequence":"additional","affiliation":[{"name":"Patras, 26442 Achaia, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7464-2263","authenticated-orcid":true,"given":"Vladislav","family":"Vergilov","sequence":"additional","affiliation":[{"name":"National Museum of Natural History at the Bulgarian Academy of Sciences, 1 Tsar Osvoboditel Blvd., 1000 Sofia, Bulgaria"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9707-1443","authenticated-orcid":true,"given":"Judit","family":"V\u00f6r\u00f6s","sequence":"additional","affiliation":[{"name":"Department of Zoology, Hungarian Natural History Museum, Baross u. 13., 1088, Budapest, Hungary"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4398-4076","authenticated-orcid":true,"given":"V\u00e1clav","family":"Gvo\u017ed\u00edk","sequence":"additional","affiliation":[{"name":"National Museum, Department of Zoology, Prague, Czech Republic"},{"name":"Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic"}]}],"member":"374","reference":[{"key":"R000001","series-title":"Ege \u00dcniv. Fen Fak. Derg., Seri B","first-page":"145","article-title":"T\u00fcrkiye\u2019de Anguidae familyas\u0131 t\u00fcrlerinin taksonomisi [Zur Taxionomie der t\u00fcrkischen Anguidae]","volume":"1","author":"Baran, \u0130.","unstructured":"Baran, \u0130. (1977): T\u00fcrkiye\u2019de Anguidae familyas\u0131 t\u00fcrlerinin taksonomisi [Zur Taxionomie der t\u00fcrkischen Anguidae]. Ege \u00dcniv. Fen Fak. Derg., Seri B 1: 145-153 (in Turkish with German summary)."},{"key":"R000002","series-title":"PeerJ","article-title":"Phenotypic differentiation of the slow worm lizards (Squamata: Anguis) across their contact zone in Central Europe","author":"Benkovsk\u00fd, N.","unstructured":"Benkovsk\u00fd, N., Moravec, J., Gvo\u017ed\u00edkov\u00e1 Jav\u016frkov\u00e1, V., \u0160ifrov\u00e1, H., Gvo\u017ed\u00edk, V., Jandzik, D.: Phenotypic differentiation of the slow worm lizards (Squamata: Anguis) across their contact zone in Central Europe. PeerJ, in revision."},{"key":"R000003","series-title":"Herpetozoa","first-page":"51","article-title":"Zum systematischen Status der Blindschleiche (Anguis fragilis Linnaeus, 1758) von Nordgriechenland und Albanien (Squamata: Anguidae)","volume":"2","author":"Cabela, A.","unstructured":"Cabela, A., Grillitsch, H. (1989): Zum systematischen Status der Blindschleiche (Anguis fragilis Linnaeus, 1758) von Nordgriechenland und Albanien (Squamata: Anguidae). Herpetozoa 2: 51-69."},{"key":"R000004","series-title":"J.\u00a0Biogeogr.","first-page":"548","article-title":"Revisiting a speciation classic: comparative analyses support sharp but leaky transitions between Bombina toads","volume":"48","author":"Dufresnes, C.","unstructured":"Dufresnes, C., Suchan, T., Smirnov, N.A., Deno\u00ebl, M., Rosanov, J.M., Litvinchuk, S.N. (2021): Revisiting a speciation classic: comparative analyses support sharp but leaky transitions between Bombina toads. J.\u00a0Biogeogr. 48: 548-560."},{"key":"R000005","series-title":"Scopolia","first-page":"1","article-title":"Taxonomic and biogeographic characteristics of the slow-worm (Anguis fragilis Linnaeus 1758) in Yugoslavia and on the Balcan Peninsula","volume":"12","author":"D\u017euki\u0107, G.","unstructured":"D\u017euki\u0107, G. (1987): Taxonomic and biogeographic characteristics of the slow-worm (Anguis fragilis Linnaeus 1758) in Yugoslavia and on the Balcan Peninsula. Scopolia 12: 1-47."},{"key":"R000006","series-title":"Mol. Ecol.","first-page":"1787","article-title":"Genetic diversity, but not hatching success, is jointly affected by postglacial colonization and isolation in the threatened frog, Rana latastei","volume":"16","author":"Ficetola, G.F.","unstructured":"Ficetola, G.F., Garner, T.W.J., De Bernardi, F. (2007): Genetic diversity, but not hatching success, is jointly affected by postglacial colonization and isolation in the threatened frog, Rana latastei. Mol. Ecol. 16: 1787-1797."},{"key":"R000007","series-title":"Mol. Ecol.","first-page":"3381","article-title":"Nuclear and mitochondrial phylogeography of the European fire-bellied toads Bombina bombina and Bombina variegata supports their independent histories","volume":"20","author":"Fijarczyk, A.","unstructured":"Fijarczyk, A., Nadachowska, K., Hofman, S., Litvinchuk, S.N., Babik, W., Stuglik, M., Gollmann, G., Choleva, L., Cog\u0103lniceanu, D., Vukov, T., D\u017euki\u0107, G., Szymura, J.M. (2011): Nuclear and mitochondrial phylogeography of the European fire-bellied toads Bombina bombina and Bombina variegata supports their independent histories. Mol. Ecol. 20: 3381-3398."},{"key":"R000008","series-title":"Atlas of Amphibians and Reptiles in Europe","author":"Gasc, J.-P.","unstructured":"Gasc, J.-P., Cabela, A., Crnobrnja-Isailovi\u0107, J., Dolmen, D., Grossenbacher, K., Haffner, P., Lescure, J., Martens, H., Mart\u00ednez-Rica, J.P., Maurin, H., Oliveira, M.E., Sofianidou, T.S., Veith, M., Zuiderwijk, A. (1997): Atlas of Amphibians and Reptiles in Europe. Societas Europaea Herpetologica and Mus\u00e9um national d\u2019Histoire naturelle, Paris."},{"key":"R000009","series-title":"Herpetozoa","first-page":"131","article-title":"Zum systematischen Status der Blindschleichen (Squamata: Anguidae) der Peloponnes und der s\u00fcdlichen Ionischen Inseln (Griechenland)","volume":"2","author":"Grillitsch, H.","unstructured":"Grillitsch, H., Cabela, A. (1990): Zum systematischen Status der Blindschleichen (Squamata: Anguidae) der Peloponnes und der s\u00fcdlichen Ionischen Inseln (Griechenland). Herpetozoa 2: 131-153."},{"key":"R000010","series-title":"Mol. Phylogenet. Evol.","first-page":"1077","article-title":"An ancient lineage of slow worms, genus Anguis (Squamata: Anguidae), survived in the Italian Peninsula","volume":"69","author":"Gvo\u017ed\u00edk, V.","unstructured":"Gvo\u017ed\u00edk, V., Benkovsk\u00fd, 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. Mol. Phylogenet. Evol. 69: 1077-1092."},{"key":"R000011","series-title":"Amphibia-Reptilia","first-page":"383","article-title":"Two species of slow worm (Anguis fragilis, A.\u00a0colchica) present in the Baltic region","volume":"42","author":"Gvo\u017ed\u00edk, V.","unstructured":"Gvo\u017ed\u00edk, V., Harca, Z., H\u00e1nov\u00e1, A., Jablonski, D., Pupins, M., \u010ceir\u0101ns, A., Paasikunnas, T. (2021): Two species of slow worm (Anguis fragilis, A.\u00a0colchica) present in the Baltic region. Amphibia-Reptilia 42: 383-389."},{"key":"R000012","series-title":"Mol. Phylogenet. Evol.","first-page":"460","article-title":"Slow worm, Anguis fragilis (Reptilia: Anguidae) as a species complex: genetic structure reveals deep divergences","volume":"55","author":"Gvo\u017ed\u00edk, V.","unstructured":"Gvo\u017ed\u00edk, 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. Mol. Phylogenet. Evol. 55: 460-472."},{"key":"R000013","series-title":"Fauna \u010cR, Plazi \u2013 Reptilia [Fauna of the Czech Republic, Reptiles \u2013 Reptilia]","first-page":"237","article-title":"Anguis fragilis Linnaeus, 1758 \u2013 slep\u00fd\u0161 k\u0159ehk\u00fd [Anguis fragilis Linnaeus, 1758 \u2013 Common European Slow Worm]","author":"Gvo\u017ed\u00edk, V.","unstructured":"Gvo\u017ed\u00edk, V., Moravec, J. (2015): Anguis fragilis Linnaeus, 1758 \u2013 slep\u00fd\u0161 k\u0159ehk\u00fd [Anguis fragilis Linnaeus, 1758 \u2013 Common European Slow Worm]. In: Fauna \u010cR, Plazi \u2013 Reptilia [Fauna of the Czech Republic, Reptiles \u2013 Reptilia], p.\u00a0237-261. Moravec, J., Ed., Academia, Praha (in Czech with English summary)."},{"key":"R000014","series-title":"Fauna \u010cR, Plazi \u2013 Reptilia [Fauna of the Czech Republic, Reptiles \u2013 Reptilia]","first-page":"275","article-title":"Slep\u00fd\u0161 k\u0159ehk\u00fd a slep\u00fd\u0161 v\u00fdchodn\u00ed \u2013 v\u00fdskyt v \u010cesk\u00e9 republice [Common European Slow Worm and Eastern Slow Worm \u2013 distributions in the Czech Republic]","author":"Gvo\u017ed\u00edk, V.","unstructured":"Gvo\u017ed\u00edk, V., Moravec, J., Zavadil, V., Je\u0159\u00e1bkov\u00e1, L. (2015): Slep\u00fd\u0161 k\u0159ehk\u00fd a slep\u00fd\u0161 v\u00fdchodn\u00ed \u2013 v\u00fdskyt v \u010cesk\u00e9 republice [Common European Slow Worm and Eastern Slow Worm \u2013 distributions in the Czech Republic]. In: Fauna \u010cR, Plazi \u2013 Reptilia [Fauna of the Czech Republic, Reptiles \u2013 Reptilia], p.\u00a0275-278. Moravec, J., Ed., Academia, Praha (in Czech with English summary)."},{"key":"R000015","series-title":"BMC Evol. Biol.","article-title":"Contrasting evolutionary histories of the legless lizards slow worms (Anguis) shaped by the topography of the Balkan Peninsula","volume":"16","author":"Jablonski, D.","unstructured":"Jablonski, D., Jandzik, D., Mikul\u00ed\u010dek, P., D\u017euki\u0107, G., Ljubisavljevi\u0107, K., Tzankov, N., Jeli\u0107, D., Thanou, E., Moravec, J., Gvo\u017ed\u00edk, V. (2016): Contrasting evolutionary histories of the legless lizards slow worms (Anguis) shaped by the topography of the Balkan Peninsula. BMC Evol. Biol. 16: 99."},{"key":"R000016","series-title":"Amphibia-Reptilia","first-page":"562","article-title":"Phylogeography and postglacial colonization of Central Europe by Anguis fragilis and Anguis colchica","volume":"38","author":"Jablonski, D.","unstructured":"Jablonski, D., Najbar, B., Grochowalska, R., Gvo\u017ed\u00edk, V., Strza\u0142a, T. (2017): Phylogeography and postglacial colonization of Central Europe by Anguis fragilis and Anguis colchica. Amphibia-Reptilia 38: 562-569."},{"key":"R000017","series-title":"Herpetol. Bull.","first-page":"25","article-title":"Genetic confirmation of the occurrence and notes on the ecology of the yellow-bellied toad, Bombina variegata (L., 1758) (Amphibia: Bombinatoridae) in the European part of Turkey","volume":"139","author":"Kari\u015f, M.","unstructured":"Kari\u015f, M., Veith, M., G\u00f6\u00e7men, B., O\u011fuz, M.A., \u015eener, D., Kurt, B. (2017): Genetic confirmation of the occurrence and notes on the ecology of the yellow-bellied toad, Bombina variegata (L., 1758) (Amphibia: Bombinatoridae) in the European part of Turkey. Herpetol. Bull. 139: 25-27."},{"key":"R000018","series-title":"Zool. Scripta","first-page":"458","article-title":"Mitochondrial phylogeography, contact zones and taxonomy of grass snakes (Natrix natrix, N. megalocephala)","volume":"42","author":"Kindler, C.","unstructured":"Kindler, C., B\u00f6hme, W., Corti, C., Gvo\u017ed\u00edk, V., Jablonski, D., Jandzik, D., Metallinou, M., \u0160irok\u00fd, P., Fritz, U. (2013): Mitochondrial phylogeography, contact zones and taxonomy of grass snakes (Natrix natrix, N. megalocephala). Zool. Scripta 42: 458-472."},{"key":"R000019","series-title":"Herpetozoa","first-page":"223","article-title":"Are Anguis graeca (Bedriaga, 1881) and Anguis cephallonica Werner, 1894, sympatric in the lowlands of southern Laconia?","volume":"30","author":"Koppitz, C.","unstructured":"Koppitz, C. (2018): Are Anguis graeca (Bedriaga, 1881) and Anguis cephallonica Werner, 1894, sympatric in the lowlands of southern Laconia? 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