# Trimeresurus davidi

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Species of snake

Trimeresurus davidi Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Suborder: Serpentes Family: Viperidae Genus: Trimeresurus Species: T. davidi Binomial name Trimeresurus davidi Chandramouli, Campbell & Vogel, 2020

***Trimeresurus davidi*** is a species of [pit viper](/source/Pit_viper) recently [described](/source/Species_description) from the Car Nicobar Island of the [Nicobar Archipelago](/source/Nicobar_Islands), Indian Ocean. The specific epithet (*davidi*) honours herpetologist Patrick David, who made significant contribution to the taxonomy of Asian pit vipers, and herpetofauna of the Nicobar island in particular.[1][2]

## Description

*Trimeresurus davidi* is a medium to large-sized pit viper, with body lengths ranging from 277 to 835 mm. Key distinguishing features include:

[Dorsal scales](/source/Dorsal_scales) arranged in 21–25 rows at the midbody. A partially fused nasal and first [supralabial scale](/source/Supralabial_scale). 166–179 [ventral scales](/source/Ventral_scales) and 58–70 [subcaudal scales](/source/Subcaudal_scales). A single [preocular scale](/source/Preocular_scale) and 2–3 postocular scales. 10–12 [supralabial](/source/Supralabial_scale) and 12–15 [infralabial](/source/Sublabial_scale) scales. Two [internasal](/source/Internasal_scales) scales, typically in contact with each other. 11–14 cephalic scales.

The species exhibits a striking verdant green coloration on both its dorsal and ventral sides, lacking the white ventrolateral stripes seen in some related species. Males feature a distinctive white supralabial streak, bordered by a reddish hue above. Both sexes display a pair of white and red stripes along the sides of the tail, which is reddish-brown in color. The eyes are characterized by a greenish iris[2]

## Distribution and habitat

*Trimeresurus davidi* is endemic to Car Nicobar Island, part of the Nicobar Archipelago in the Indian Ocean. This restricted range makes the species particularly vulnerable to environmental changes and habitat loss. The viper is arboreal, meaning it primarily inhabits trees, which is typical of many species within the *[Trimeresurus](/source/Trimeresurus)* genus.

## References

1. **[^](#cite_ref-1)** ["Trimeresurus davidi"](https://reptile-database.reptarium.cz/species?genus=Trimeresurus&species=davidi&search_param=()). *The Reptile Database*. Retrieved 2025-03-12.

1. ^ [***a***](#cite_ref-Chandramouli2020_2-0) [***b***](#cite_ref-Chandramouli2020_2-1) Chandramouli SR; Campbell PD; Vogel G. (2020). "A new species of green pit viper of the genus *Trimeresurus* Lacépède, 1804 (Reptilia: Serpentes: Viperidae) from the Nicobar Archipelago, Indian Ocean". *Amphibian & Reptile Conservation*. **14** (3): 169–176.

Taxon identifiers Trimeresurus davidi Wikidata: Q106307562 Wikispecies: Trimeresurus davidi CoL: 8H5L3 GBIF: 11171838 iNaturalist: 1161393

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