Red-sided Keelback

Xenochrophis trianguligerus

Description

Xenochrophis trianguligerus body length reached 1.2 meters. The upper body is brown-gray or olive, and is decorated with a row of reddish “triangles” and blackish “inverted triangles” criss-crossing along the sides of the body. Getting to the tail, the reddish color on the sides of the body fades. The lower part of the body is whitish with a few blackish stripes. The scales of the dorsal (upper body) are arranged in 19 rows and their keels, except for one or two of the lowest rows. The ventral (lower body) scales are 134-151 pieces. There are 86-97 pairs of subkaudal scales at the bottom of the tail, and paired anal scales (covering the anus). Labial (lip) scales as many as 9 pieces. 2 anterior temporal scales on both sides of the head. The two nostrils point upwards like other types of water snakes.

Population Size

Increasing

Life Span

-

WEIGHT​

-

LENGTH

Total length 1.2 meter

Ca

Carnivore

No

Nocturnal

Se

Semiaquatic

Classification

KINGDOM

:

Animalia

PHYLUM

:

Chordata

CLASS

:

Reptilia

ORDER

:

Squamata

FAMILY

:

Natricidae

GENUS

:

Xenochrophis

SPECIES

:

Xenochrophis trianguligerus

Distribution

Xenochrophis trianguligerus inhabits humid rainforests in the lowlands up to an altitude of 1400 meters above sea level, often found near water such as rivers, swamps, ponds, or rice fields

Geography

Continent : Asia

Country : widely distributed in India (Nicobar Islands, Arunachal Pradesh), Myanmar, Laos, Vietnam, Cambodia, Thailand, Malaysia, Singapore, Indonesia (Sumatra, Nias, Mentawai Islands, Riau Islands, Bangka-Belitung, Java, Kalimantan, Sulawesi, and several surrounding islands), and Brunei Darussalam.

Habits and Lifestyle

These snakes wander during the day and are often found near waters such as rivers, swamps, ponds, or rice fields. Like other Natricidae species, this snake is a reliable swimmer.

Lifestyle

Semiaquatic

Biome

Rain forests

Climate Zone

Tropical

Diet and Nutrition

This species includes carnivores. Its main diet is frogs, fish and lizards.

Diet : Carnivora

Mating Habits

These snakes reproduce by laying eggs. The number of eggs produced is 5 to 8 eggs.

Reproduction session : –

Incubation periods: –

Independent age : at birth

Baby name : –

Baby carrying : 5 – 8 eggs

Population

Population status : Least Concern (LC)

NE

DD

LC

NT

VU

EN

CR

EW

EX

Population threats​

There are no apparent threats to this species, as it is tolerant of and indeed thrives in human-modified environments, especially rice fields.

Population number​

This adaptable snake covers a wide geographic range and faces no major threats, and is therefore listed as Least Concern.

PHOTO GALLERY

Reference

  1. Wogan, G. & Chan-Ard, T. 2012. Xenochrophis trianguligerus. The IUCN Red List of Threatened Species 2012: e.T192034A2031113
  2. Xenochrophis trianguligerus Wikipedia article
  3. Somaweera, R. 2017. A Naturalist’s Guide To The Reptiles and Amphibians of Bali. John Beaufoy Publishing, Oxford, England