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  9. ›Trimeresurus
Island Pit Viper
Plate 1 of 1. (c) Mohit Mishra, some rights reserved (CC BY-NC), uploaded by Mohit Mishra · via iNaturalist
IUCN CR · Critically endangered

Island Pit Viper

Trimeresurus labialis

Trimeresurus labialis, commonly called Nicobar bamboo pit viper, is a venomous pit viper species endemic to the Nicobar Islands of India. No subspecies are currently recognized. Based on IUCN assessment in 2021, this viper is classified as critically endangered.

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From the article Trimeresurus labialis on Wikipedia (CC BY-SA), quoted section by section

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Description

Males may attain a total length of 42 cm (17 in), with a tail 8 cm (3.1 in) long; females, total length 44 cm (17 in), tail 7 cm (2.8 in). Dorsally, T. labialis is brown, either light or dark, with or without darker spots or transverse bars. It may have a light streak on each side of the head, beginning at the snout, continuing under the eye, to the neck. Ventrally, it is also brown. The dorsal scales are smooth, and are usually in 23 rows at midbody. Ventrals: 158-170 in males; 154-174 in females. Subcaudals: 60-65 in males; 46-57 in females. The subcaudals are usually double, but there may be some interspersed singles.

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Range & habitat

Found only in the Nicobar Islands of India. The type locality given is "den Nikobaren".

Wikipedia: “Geographic range”

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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Every page naming Trimeresurus labialis in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 30964.