Endemic Species of Myanmar

Myanmar has no defensible single all-taxa total for endemic species. Current national datasets cover different biological groups, use different taxonomic treatments, and in some cases define endemism differently, so the figures below are kept as separate measures instead of being added together.

Geographic centres of endemism

Myanmar’s endemics are distributed across several isolation systems: dry-zone massifs, western and northern mountains, limestone karst, southern forest belts, and separate freshwater drainages. A 2026 vascular-plant analysis adds an evolutionary layer to that pattern: central Myanmar has relatively high phylogenetic diversity and phylogenetic endemism despite only moderate modeled species richness. ^[S6]

Vascular plants: 864 endemic species in the national checklist

The 2025 vascular-plant checklist records 14,020 species in 2,701 genera and 292 families. It treats 13,314 species as native, 706 as introduced and 864 as endemic to Myanmar. ^[S1] Because all three values come from the same checklist and rank, the endemic share of the native vascular flora is about 6.5%.

The 864-species figure is the stronger national baseline than older floristic estimates that circulated before the accepted-name list was rebuilt. The checklist added 2,220 species relative to the earlier 11,800-species inventory while resolving names, synonyms and native status. ^[S1]

Paleo-endemism and neoendemism occupy different regions

The 2026 phylogenetic study used a dated megaphylogeny containing 4,943 vascular-plant species and modeled habitat suitability for 2,453 species. Its CANAPE analysis separates areas dominated by old, geographically restricted lineages from areas shaped by more recent diversification. ^[S6]

{
  "type": "bar",
  "title": "Protected-area overlap of plant endemism regions",
  "description": "Share of CANAPE-defined paleo-endemism and neoendemism regions overlapping current protected areas in the 2026 vascular-plant analysis.",
  "unit": "percent",
  "data": [
    {"label": "Paleo-endemism regions", "value": 6.95},
    {"label": "Neoendemism regions", "value": 58.63}
  ]
}

Species described after the 2025 plant baseline

A national checklist is a dated taxonomic baseline. Species published after that baseline should not be arithmetically added to its endemic count without a revised checklist that reconciles names and distributions.

Amphibians: 25 country-endemic species in the 2024 assessment

The amphibian assessment records 152 species in Myanmar and identifies 25 as endemic to the country. Within that endemic set, ten are classed as country endemics (CE), seven as regional endemics (RE), and eight as microendemics (ME); these grades describe how narrowly the species is distributed within Myanmar, not whether the species is endemic to Myanmar. ^[S3]

{
  "type": "bar",
  "title": "Range grades within Myanmar's endemic amphibian set",
  "description": "The 25 species are all treated as endemic to Myanmar; CE, RE and ME distinguish their internal range extent in the 2024 assessment.",
  "unit": "species",
  "data": [
    {"label": "Country endemic (CE)", "value": 10},
    {"label": "Regional endemic (RE)", "value": 7},
    {"label": "Microendemic (ME)", "value": 8}
  ]
}

Endemic amphibian checklist

Reptiles: the 44-species figure needs its original definition

The 2025 terrestrial-reptile assessment covers 212 species: 187 Squamata, 24 Testudines and one Crocodylia. It places 44 species in its endemic classes, including 23 CE, 17 RE and four ME. Seven of the 24 turtles and 37 squamates fall into those classes. ^[S4]

The terminology is broader than strict country endemism. ME means a species known from one locality; RE can include one ecoregion or a locality extending across an ecoregional or national border; CE can include taxa occurring on Myanmar’s border with another country plus another locality in Myanmar. The analysis also retained Trimeresurus kanburiensis even though its confirmed range was in Kanchanaburi, Thailand, because the authors considered occurrence in adjacent Kayin State likely. ^[S4]

Four microendemic reptiles in the 2025 analysis

The study’s ME category is the narrowest and is tied to a single documented locality. All four ME species are bent-toed geckos. ^[S4]

Karst habitat-islands create much narrower ranges

Limestone systems in east-central and southern Myanmar can isolate populations at the scale of a ridge, cave or tower. A study of the Shan Hills and Salween River Basin described 12 new karst-adapted Cyrtodactylus species. Three occurred in rocky habitats along karst ridges; nine were microendemics restricted to isolated caves and towers. The authors described the pattern as archipelago-like because separated limestone formations act as terrestrial habitat islands. ^[S9]

That pattern explains why a national reptile count alone misses much of the biological information: two species can both be Myanmar endemics while one occupies a broad portion of the country and another is confined to one limestone formation.

Mammals: species rank changes the published endemic count

The 2024 annotated checklist records 365 mammals, including 332 terrestrial and 33 marine species. It states that Myanmar has at least nine endemic mammals and names nine entries. One of those entries, Eld’s deer Rucervus eldii thamin, is a subspecies rather than a species. The species-rank checklist below therefore contains the other eight named entries and keeps the endemic subspecies separate. ^[S2]

Birds: the count changes with checklist treatment

Avibase’s Myanmar checklist follows Clements version 2025 and contains 1,158 species. Its page-level summary reports eight endemics, but the species rows make a useful distinction: seven species are tagged simply as “Endemic,” while Gurney’s Pitta is tagged “Endemic (country/region).” The table below keeps only the seven rows carrying the strict “Endemic” tag. ^[S5]

Hydrornis gurneyi is not silently converted into a strict country-endemic record because the same checklist uses the broader “Endemic (country/region)” tag for that species. Pycnonotus blanfordi is tagged “Near-endemic,” and Streptopelia xanthocycla is present without an endemic tag under this treatment. ^[S5]

Freshwater endemism: Inle Lake shows how range labels can change

The 2016 Inle Lake dataset recorded 49 fish species from the lake and surrounding waters. Thirteen species from 12 genera were grouped as endemic or nearly endemic to the lake system, a combined category that should not be rewritten as 13 strict lake endemics. ^[S10]

Later sampling altered the geographic picture. Surveys at Hopong, about 35 km northeast of Inle Lake in the Salween basin, recorded 25 fish species. Seven—including Inlecypris auropurpureus and Sawbwa resplendens—had previously been considered endemic to Inle Lake. At least three of those Hopong populations were genetically distinct in the study. ^[S11]

Why Myanmar’s endemic counts move between datasets

Myanmar’s numbers change for several biological reasons. New species continue to be described, as shown by Sadiria kachinensis, Aristolochia natmataungensis and Laubuka sittaungensis in 2026. ^{[S8] [S7] [S12]} Previously narrow ranges can expand after field surveys, as the Inle–Hopong fish records demonstrate. ^[S11] Taxonomic synonymy can remove an endemic name, as occurred with Hypsugo anthonyi in the mammal checklist. ^[S2]

Definitions also matter. The amphibian paper’s 25 species are explicitly endemic to Myanmar and then subdivided by internal range size, while the reptile paper’s RE category can cross a national border. The bird checklist distinguishes “Endemic” from “Endemic (country/region).” These are different evidence structures and should remain separate even when they use the same word. ^{[S3] [S4] [S5]}