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NL·0778AnimalsVaranidaeReptile5,285 field observations
Bengal monitorNL·0778
Plate 1 of 8. (c) Dr Caesar Sengupta, some rights reserved (CC BY-NC), uploaded by Dr Caesar Sengupta · via iNaturalist

Herbarium of the Nature Library

Name
Varanus bengalensis
Family
Varanidae
Native to
Iran and Afghanistan through Pakistan, India, Nepal, Bangladesh and Sri Lanka to Myanmar
Habitat
Tropical dry forest, Farmland, Scrub, Semi-desert
IUCN NT · Near threatened

Bengal monitor

Varanus bengalensis

Also calledIndian monitor · Goh (Hindi, Urdu) · Udumbu (Tamil, Malayalam) · Ghorpad (Marathi) · Thalagoya (Sinhala) · Gui sap (Bengali)

A large, ground-dwelling monitor of South Asia's plains and forests. It digs out insects, scorpions and eggs with its claws and tracks food with its forked tongue. It is hunted for meat, skins and a fake 'magical root'.

The Bengal monitor, also called the common Indian monitor, is a species of monitor lizard distributed widely in the Indian subcontinent and parts of Southeast Asia and West Asia. Wikipedia

§1

What it can do

  1. iDigs out prey with strong claws and can climb trees
  2. iiCan run fast on land and swim
  3. iiiTracks food with its forked tongue
  4. ivLives close to farms and villages without depending on water
§2

In the field

Field marks

  • aLarge monitor, grey-brown to yellowish with dark speckles; juveniles banded
  • bSlit-like nostrils placed midway between the eye and snout tip
  • cLong neck and forked tongue
  • dLaterally flattened tail
Not to be confused with
The water monitor (V. salvator) is darker with yellow spots or bands and has round nostrils near the snout tip; it lives near water. The yellow monitor (V. flavescens) of the Gangetic plain has bold yellow bands and a short snout.
Where to see it
Common in Ranthambore, Keoladeo, Kanha, Bandipur (India) and Yala and Wilpattu (Sri Lanka)
When
Resident; inactive in cold winters in the north
§3

Life & habits

Diet
Beetles, scorpions, snails, frogs, eggs, small mammals, carrion
Habitat
Forest, farmland, scrub and semi-desert; often in burrows or tree hollows
Size
Usually 60–175 cm including tail
Lifespan
~20 years

Active by day, digging for prey in leaf litter and termite mounds. Males wrestle while standing on their hind legs during the breeding season.

§4

Where it lives

Recorded sightings

—

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

Native range

Iran and Afghanistan through Pakistan, India, Nepal, Bangladesh and Sri Lanka to Myanmar

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

§5

In the old herbals & bestiaries

No plate in the Source Library names this exact species, so these show its closest relatives as the old naturalists drew them: same genus, or the same kind of animal. Click a plate to read the page it came from, with translation.

§6

In the stacks

Searching the stacks…

Every page naming Varanus bengalensis in the Biodiversity Heritage Library →

§7

Marginalia

Legend says the Maratha general Tanaji Malusare used a monitor, Yashwanti, to scale the walls of Kondhana (Sinhagad) fort in 1670. Dried monitor hemipenes are sold illegally as 'hatha jodi', a supposedly lucky root.

Curiosity

Most 'hatha jodi' seized in Indian markets have turned out to be the dried genitals of male monitor lizards.

§8

Kinship

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›subphylumVertebrata
  4. ›classReptilia
  5. ›orderSquamata
  6. ›suborderSauria
  7. ›infraorderAnguimorpha
  8. ›familyVaranidae
  9. ›genusVaranus
  10. ›subgenusEmpagusia
Open its branch on the Wheel of Life →

Neighbours on the shelf

Photographs: iNaturalist contributors under the licences shown. Records: GBIF.org. Historical plates: Source Library (CC BY-SA 4.0; originals public domain). Summary text: Nature Library editors and Wikipedia (CC BY-SA). Medicinal and edibility notes are historical and educational, not advice. iNaturalist taxon 39415.