Reptiles of Turkey: Lizards, Snakes, Turtles, and Tortoises

Turkey supports native and naturally recorded sea turtles, freshwater turtles, tortoises, worm lizards, geckos, skinks, lacertids, agamas, glass lizards, monitor lizards, colubrids, blind snakes, boas, elapids, and vipers. A 2021 national atlas recognized 141 reptile species, but that number is not a permanent taxonomic total: later studies described additional Anatolian lizards, corrected several snake records, and changed the rank or accepted name of other taxa.

Why Turkey’s Published Reptile Totals Differ

The broadest mapped national synthesis published in 2021 listed 11 chelonians, 70 lizards, 3 worm lizards, and 57 snakes. It combined literature available through December 2020 with field data gathered from 1987 to 2020 and assembled 11,913 locality records. Its 141-species inventory provides the clearest dated baseline for a national checklist and for the tables below.[a]

A separate checklist published in 2020 counted 145 reptiles: 11 testudines, 71 saurians, 3 amphisbaenians, and 60 snakes. The difference does not represent four reptiles appearing or disappearing in a single year. It reflects alternative decisions about taxonomy, doubtful border records, introduced species, and names treated as species in one source but as synonyms or subspecies in another.[b]

Composition of the 2021 National Inventory

Turtles and Tortoises Recorded from Turkey

Turkey’s chelonian records include three marine turtles, four hard-shelled freshwater turtles or pond turtles, two softshell turtles, two land tortoises, and an introduced North American slider. Marine occurrence does not imply that every recorded species nests on Turkish beaches; the leatherback is primarily an occasional marine record, whereas loggerhead and green turtles have established nesting use of the Mediterranean coast.

Turkey’s Three Worm Lizards

Amphisbaenians are burrowing squamates rather than true worms or snakes. Turkey’s accepted national lists contain three species in the genus Blanus. Their subterranean habits make them less frequently documented than surface-active lizards.

Agamas, Chameleons, Geckos, Glass Lizards, and the Leopard Gecko

This part of the fauna contains rock-dwelling agamas, a Mediterranean chameleon, nocturnal geckos, an eyelid gecko, and two limbless or reduced-limb anguids. The genera used for the starred agamas vary among recent sources: many Turkish publications use Paralaudakia caucasia and Stellagama stellio, while other current checklists place both in Laudakia.

Lacertid Lizards of Turkey

Lacertidae is the most species-rich reptile family in Turkey. Its diversity is especially high among Anatolian rock lizards, fringe-fingered lizards, green lizards, snake-eyed lizards, and narrowly distributed mountain taxa. Several Darevskia species reproduce parthenogenetically, while others form geographically restricted sexual lineages.

Fringe-Fingered, Anatolian, and Cappadocian Lizards

Rock Lizards in the Genus Darevskia

The genus Darevskia contains the largest concentration of recent taxonomic change in the Turkish checklist. The first table contains taxa recognized by the 2021 atlas. Newly described or newly elevated species are added immediately afterward rather than silently inserted into the older total.

A 2022 revision of the Darevskia rudis complex recognized D. mirabilis, D. obscura, and D. spitzenbergerae at species level and described D. josefschmidtleri. These names should not be hidden under a single unchanged D. rudis entry.[e]

Darevskia tuniyevi was diagnosed from 257 specimens using external morphology, osteology, mitochondrial evidence, and a nuclear marker.[f] The separate description of Darevskia salihae provides another reason that a checklist based only on literature available through 2020 cannot be treated as a current fixed total.[g]

Racerunners, Green Lizards, Snake-Eyed Lizards, and Wall Lizards

The present species account for Eremias arguta includes a Turkish record near Lake Van, making it a database-supported addition that was not incorporated into the 2021 atlas.[q] Current distribution information for Timon princeps also includes southeastern Turkey, while distinguishing it from the neighboring T. kurdistanicus lineage.[p]

Skinks and the Desert Monitor

Blind Snakes, Sand Boas, and Water Snakes

Colubrid and Psammophiid Snakes

Most Turkish snake species belong to Colubridae. The group includes racers, dwarf snakes, rat snakes, whip snakes, cat snakes, and smooth snakes. The following inventory replaces Platyceps ventromaculatus with P. karelini because the former Turkish records were shown to be misidentified.

The 2024 Şanlıurfa study concluded that the snake previously reported from Turkey as Platyceps ventromaculatus was a misidentified P. karelini and that P. ventromaculatus does not occur in the country.[h]

Elapids and Vipers

Turkey’s medically important venomous snakes are concentrated in Viperidae, with one desert cobra lineage in Elapidae. Species boundaries among mountain and steppe vipers remain an active research subject, so a national total must state whether geographically structured forms are treated as species or subspecies.

The Reptile Database assigns Turkish specimens formerly identified as Vipera darevskii to Vipera olguni and limits confirmed V. darevskii to the area beyond the Turkish border.[i] The same care is needed with Montivipera albizona: it is listed as a species in the database, while other work places it below species level within M. bulgardaghica.[l]

Names That Should Not Be Added as Separate Turkish Species

Historical names, changed combinations, misidentifications, and database search artifacts can inflate a checklist when every returned name is counted independently. The following entries require replacement, exclusion, or a stated taxonomic choice.

The current account for Daboia palaestinae explicitly states that the species has not been found in Turkey.[j] The current distribution account for Mesalina microlepis likewise omits Turkey, so an older mapped record should not be retained as an accepted species without renewed evidence.[k]

How Geography Structures the Reptile Fauna

Turkey lies across several biogeographic transition zones rather than within one uniform reptile region. Thrace connects the fauna to the Balkans and southeastern Europe. The Aegean and Mediterranean belts support warm-climate tortoises, geckos, lacertids, chameleons, whip snakes, and marine-turtle nesting habitat. The central plateau and Taurus ranges contain dry-steppe reptiles and localized mountain lineages. Northeastern Anatolia connects to the Caucasus and supports the highest concentration of Darevskia and several restricted vipers. Eastern Anatolia adds highland, steppe, and volcanic-plateau taxa, while the southeast contains species linked to Mesopotamia, the northern Levant, and arid western Asia.

Conservation Evidence Is Uneven and Assessment Dates Matter

A conservation category applies to a named taxon under a particular assessment date and taxonomic treatment. It should not be copied automatically to a renamed lineage, a newly described species, or every population within Turkey. Several narrow-range Turkish reptiles were assessed before later distribution discoveries or taxonomic revisions, while many recently described species have not passed through an equivalent global assessment cycle.

The dated assessment for Acanthodactylus harranensis classified the species as Critically Endangered under criteria based on its then-known area and habitat decline.[n] Remote-sensing research on Rafetus euphraticus found a marked reduction in sandy nesting habitat in the upper Tigris and linked the pressure to river alteration and sand extraction.[o]

A 2025 review of Vipera anatolica and the Vipera renardi eriwanensis lineage also demonstrates why status and taxonomy must be reported together: the authors discuss distinct lineages across western Asia while noting that the relevant official assessments were already more than fourteen years old.[m]

Occurrence Records Do Not Define a Complete Range

The 11,913 locality records assembled by the national atlas document reported evidence from publications and field observations. They do not mean that every suitable place in Turkey was surveyed equally. Roads, universities, protected areas, long-running field sites, accessible valleys, and well-known nesting beaches can accumulate many records, while remote mountains, border districts, agricultural land, and subterranean habitats remain less sampled.

A point record can support presence at a stated place and time, but it cannot establish continuous occupation between points. Historical museum material may remain biologically valuable even when no recent observation exists, while a single unverified online observation is not enough to add a species to a national list. The country-filtered results of a taxonomic database are therefore useful for checking names and candidate records, but they require review for synonyms, historical citations, introduced populations, border ambiguity, and erroneous search matches.[c]

A specialist geographic checklist provides another independent comparison and explicitly excludes doubtful records and introduced species from its native-fauna scope. Its differences from the national atlas help identify taxa that require synchronization rather than proving that one undated total is final.[d]

The current species account for Darevskia saxicola, for example, includes Turkey in its distribution while also reflecting a complicated history of names and related lineages. Such entries belong in the checklist with their taxonomic boundary stated, not as an unexplained addition to a headline number.[r]

Sources and Verification

1. [a] The distribution and biogeography of amphibians and reptiles in Turkey — Used for the 141-species national baseline, group totals, study period, occurrence-record total, mapped taxa, and regional biogeography.
2. [b] Species list of Amphibians and Reptiles from Turkey — Used for the alternative 145-reptile checklist, its group totals, and taxonomic notes concerning introduced and renamed taxa.
3. [c] The Reptile Database: Turkey country search — Used to check current accepted combinations, candidate country records, and names requiring review before inclusion in a national total.
4. [d] Reptiles of Turkey specialist checklist — Used as an independent geographic cross-check for formally described native species and disputed checklist treatments.
5. [e] Taxonomic revision of the Darevskia rudis complex — Used for D. josefschmidtleri and the species-level treatment of D. mirabilis, D. obscura, and D. spitzenbergerae.
6. [f] Description of Darevskia tuniyevi from northeastern Anatolia — Used for the species diagnosis, Turkish origin, specimen scope, and morphological and genetic evidence.
7. [g] Description of Darevskia salihae from northeastern Turkey — Used to add the post-atlas species and distinguish it from related northeastern Anatolian rock lizards.
8. [h] Herpetofaunal Diversity of Şanlıurfa Province — Used for the correction of Turkish Platyceps ventromaculatus records to P. karelini.
9. [i] The Reptile Database: Vipera darevskii — Used for the reassignment of Turkish specimens to Vipera olguni and the exclusion of confirmed V. darevskii from Turkey.
10. [j] The Reptile Database: Daboia palaestinae — Used to separate nearby Syrian occurrence from a verified Turkish national record.
11. [k] The Reptile Database: Mesalina microlepis — Used to evaluate the older Turkish atlas entry against the current accepted distribution.
12. [l] The Reptile Database: Montivipera albizona — Used for the central Turkish distribution and the alternative species-versus-subspecies treatment.
13. [m] Taxonomy, distribution, and conservation of threatened steppe vipers of western Asia — Used for Vipera anatolica, the Vipera renardi eriwanensis lineage, taxonomic rank differences, and the age of existing threat assessments.
14. [n] IUCN assessment for Acanthodactylus harranensis — Used for the Critically Endangered category, assessment date, criteria, and then-known range measurements.
15. [o] Remote-sensing study of Rafetus euphraticus nesting habitat — Used for the species’ reported threat category, upper-Tigris nesting habitat, and documented pressures from river alteration and sand extraction.
16. [p] The Reptile Database: Timon princeps — Used for its southeastern Turkish distribution and separation from Timon kurdistanicus.
17. [q] The Reptile Database: Eremias arguta — Used for the current Turkish record associated with the Lake Van area.
18. [r] The Reptile Database: Darevskia saxicola — Used for the current country distribution and the need to separate the name from related revised rock-lizard lineages.