EXPLORING FAUNAS OF ARUNACHAL - SNAKES
The fewer human activities in a place, the more sustainable it is
for animals. Although Arunachal Pradesh is continuously driving towards the
road to development, the region is still largely covered by forests and its
wildlife creatures.
This article will cover one of the most fascinating cold-blooded creatures that can be found thriving in the deep wilderness of Arunachal Pradesh - Snakes. Northeast India is home to around 110 species of snakes with Arunachal accounting for 55 of them. Let's begin by knowing some of them!
The Mock Viper (Psammodynastes pulverulentus)
The mock viper is a small species of snake that grows to a maximum
length of 65 cm. When threatened, it will curl into protective coils and strike
like a viper. Although it is a harmless, back-fanged species, it can still
bite, which could lead to a terrible skin puncture wound from its sharp front
teeth.
This Common Mock Viper can be found in a variety of altitudes,
from low-lying forested areas to mountains with altitudes of up to 1600 m. It
can be occasionally seen hanging from branches above water streams, concealing
itself in the surrounding vegetation and likely seeking prey.
Crying
Keelback (Hebius Lacrima)
In
2018, Jayaditya Purkayastha of Help Earth in Guwahati and Partick David of the
Muséum National d'Histoire Naturelle in Paris discovered a new species of
Crying Keelback snake, an adult male measuring 48.7 cm long, in the Basar town,
Lepa Rada district, Arunachal Pradesh. The Hebius Lacrima is a non-venomous
keelback snake that prefers to reside close to streams and paddy fields.
"Lacrima" is Latin for "tear." They have a diet of small
fish, tadpoles, frogs, and geckos that allows them to survive. Its name comes
from the black spot under its eyes, which resembles a teardrop as if it were
crying. The snake belongs to the genus Hebius and its discovery has been
published in the Zootaxa journal.
The
Arunachal Pit Viper (Trimeresurus
Arunachalensis)
A group
of herpetologists led by Ashok Captain with V. Deepak, Rohan Pandit, Bharat
Bhatt, and Ramana Athreya has discovered a new species of snake in West Kameng.
It is a reddish-brown pit viper, a poisonous snake with a special heat-sensing
system. The team encountered the snake while conducting biodiversity surveys in
the Eaglenest region near the village of Ramda, which is in the West Kameng
District of Arunachal Pradesh, and it is the only place where it has been
identified. This species is one of the rarest pit vipers in the world because
there is just one specimen known of it and Arunachal Pradesh in India, is the
only known home to this particular kind of venomous pit viper. This rare
species is named after the region where it occurs and its discovery was
published in the March-April (2019) volume of the Russian Journal of
Herpetology.
Jerdon’s
Red Spotted Pit Viper
(Protobothrops jerdonii xanthomelas)
Protobothrops
jerdonii is a venomous pit viper species in the subfamily; Crotalinae of the
family Viperidae, found in India, Nepal, Myanmar, China, and Vietnam. During
2006-2008, while conducting a herpetofauna survey of Eaglenest Wildlife
Sanctuary, West Kameng district, Arunachal Pradesh; four Indian researchers
reported the first record of the Jerdon’s Red Spotted Pit viper in the region.
This species was located in Lama Camp (West Kameng district, Arunachal Pradesh,
India) at a range of approximately 1,200 km southwest of Sichuan in China.
Trimeresurus
Salazar or Salazar's pit viper
Salazar's pit viper is a
new species of pit viper that has been discovered from a survey in the forests
of Arunachal Pradesh by a team of researchers of the National Centre for
Biological Science, Bangalore, India, whose studies have been published in Zoosystematics
and Evolution. The stunning green serpent has been named after Salazar
Slytherin from J.K Rowling's popular Harry Potter universe.
Researchers believe that it is one of over 50 different species of
venomous snakes in its genus that have been identified for its heat-sensing
pits in their heads which they utilise to hunt and navigate. Several of these
species have similar traits with deep green hues and other morphological
characteristics. It was observed that the scales of the new species resemble
those of Trimeresurus septentrionalis, Trimeresurus insularis Kramer, and
Trimeresurus albolabris but what set it apart, is a reddish-orange lateral
stripe on the head, alongside other obvious but subtle variations.
Slender
Snake
(Trachischium apteii)
Trachischium apteii is a species
endemic to India, it was named so to honour the contribution of Deepak Apte, a
well-known marine biologist, and scientist. Researchers discovered this new
species of a non-venomous burrowing snake, under the fallen logs inside a
thickly forested area of the Talley Valley Wildlife Sanctuary near the town of
Ziro, Lower Subansiri District in Arunachal Pradesh during a field expedition
in July 2019. The newly found species is a member of a family of snakes called
fossorials that spend most of their time underground and come to the surface
only during or right after a particularly strong monsoon. Due to the species of
this genus's tendency for burrowing, it is extremely challenging to study and
record these creatures because they are rarely observed.
Snakes might look terrifying but they are one of the most
important creatures in the ecosystem that assists in maintaining ecological
balance. Arunachal Pradesh is so rich in biodiversity that researchers continue
to discover new, rare and unique finds now and then. The state is indeed a
paradise for scientists who seek the thrill of uncovering exotic treasures
amidst nature.
Crying Keelback (Hebius Lacrima)
In 2018, Jayaditya Purkayastha of Help Earth in Guwahati and Partick David of the Muséum National d'Histoire Naturelle in Paris discovered a new species of Crying Keelback snake, an adult male measuring 48.7 cm long, in the Basar town, Lepa Rada district, Arunachal Pradesh. The Hebius Lacrima is a non-venomous keelback snake that prefers to reside close to streams and paddy fields. "Lacrima" is Latin for "tear." They have a diet of small fish, tadpoles, frogs, and geckos that allows them to survive. Its name comes from the black spot under its eyes, which resembles a teardrop as if it were crying. The snake belongs to the genus Hebius and its discovery has been published in the Zootaxa journal.
The
Arunachal Pit Viper (Trimeresurus
Arunachalensis)
A group
of herpetologists led by Ashok Captain with V. Deepak, Rohan Pandit, Bharat
Bhatt, and Ramana Athreya has discovered a new species of snake in West Kameng.
It is a reddish-brown pit viper, a poisonous snake with a special heat-sensing
system. The team encountered the snake while conducting biodiversity surveys in
the Eaglenest region near the village of Ramda, which is in the West Kameng
District of Arunachal Pradesh, and it is the only place where it has been
identified. This species is one of the rarest pit vipers in the world because
there is just one specimen known of it and Arunachal Pradesh in India, is the
only known home to this particular kind of venomous pit viper. This rare
species is named after the region where it occurs and its discovery was
published in the March-April (2019) volume of the Russian Journal of
Herpetology.
Jerdon’s
Red Spotted Pit Viper
(Protobothrops jerdonii xanthomelas)
Protobothrops
jerdonii is a venomous pit viper species in the subfamily; Crotalinae of the
family Viperidae, found in India, Nepal, Myanmar, China, and Vietnam. During
2006-2008, while conducting a herpetofauna survey of Eaglenest Wildlife
Sanctuary, West Kameng district, Arunachal Pradesh; four Indian researchers
reported the first record of the Jerdon’s Red Spotted Pit viper in the region.
This species was located in Lama Camp (West Kameng district, Arunachal Pradesh,
India) at a range of approximately 1,200 km southwest of Sichuan in China.
(Protobothrops jerdonii xanthomelas)
Trimeresurus Salazar or Salazar's pit viper
Salazar's pit viper is a
new species of pit viper that has been discovered from a survey in the forests
of Arunachal Pradesh by a team of researchers of the National Centre for
Biological Science, Bangalore, India, whose studies have been published in Zoosystematics
and Evolution. The stunning green serpent has been named after Salazar
Slytherin from J.K Rowling's popular Harry Potter universe.
Researchers believe that it is one of over 50 different species of
venomous snakes in its genus that have been identified for its heat-sensing
pits in their heads which they utilise to hunt and navigate. Several of these
species have similar traits with deep green hues and other morphological
characteristics. It was observed that the scales of the new species resemble
those of Trimeresurus septentrionalis, Trimeresurus insularis Kramer, and
Trimeresurus albolabris but what set it apart, is a reddish-orange lateral
stripe on the head, alongside other obvious but subtle variations.
Slender
Snake
(Trachischium apteii)
Trachischium apteii is a species
endemic to India, it was named so to honour the contribution of Deepak Apte, a
well-known marine biologist, and scientist. Researchers discovered this new
species of a non-venomous burrowing snake, under the fallen logs inside a
thickly forested area of the Talley Valley Wildlife Sanctuary near the town of
Ziro, Lower Subansiri District in Arunachal Pradesh during a field expedition
in July 2019. The newly found species is a member of a family of snakes called
fossorials that spend most of their time underground and come to the surface
only during or right after a particularly strong monsoon. Due to the species of
this genus's tendency for burrowing, it is extremely challenging to study and
record these creatures because they are rarely observed.
Snakes might look terrifying but they are one of the most
important creatures in the ecosystem that assists in maintaining ecological
balance. Arunachal Pradesh is so rich in biodiversity that researchers continue
to discover new, rare and unique finds now and then. The state is indeed a
paradise for scientists who seek the thrill of uncovering exotic treasures
amidst nature.
(Trachischium apteii)
Disclaimer: The opinions expressed in this article are those of the author's. They do not purport to reflect the opinions or views of The Critical Script or its editor.
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