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Squamata · PareidaeEntry 2,150 of 21,572
Inger’s Slug Snake, Asthenodipsas ingeri

Reptilia · Squamata

Asthenodipsas ingeriQuah, Lim, Grismer, 2021

Inger’s Slug Snake

Identification not confirmed. One observer recorded this animal as this species and no one has since agreed, so the photograph may show a different animal.

Photograph by Chris Oldnall, CC BY-SA, via iNaturalist

A tree-dwelling, nocturnal, meat-eating lizard from the Oriental region, reaching 818 mm nose to tail.

ReptiliaSquamataPareidaeAsthenodipsas

Grows to
818mm
greatest recorded
Eats
Carnivorous
Active
Nocturnal
Lives
Arboreal
Body length across Pareidae

Longer than 93% of all species in Pareidae anyone has measured.

93% of 40 species are smaller7% larger
145 mmthe whole family, smallest to largest880 mm

The bar is the rank itself: its length is the share of the family this animal exceeds. The chart below is the family’s real spread, on a logarithmic scale because body length here runs from 145 to 880 mm. The solid rule is this animal. Every bar is a count of real species, and nothing on this figure is estimated.

What is known

22 sourced facts, each taken from a named scientific dataset. How to read these.

Cited from a dataset unless a row is marked otherwise.

Standing in the world

Still living
Extant

The animal itself

Limbs
None
Colour on the back
Black, Brown, Gray
Pattern on the back
Banded

Size

Length snout to vent · greatest recorded
715mm2 ft 4 in

Quah et al. 2021 (female holotype: 715 mm SVL, 818 mm total length)

Length nose to tail · greatest recorded
818mm2 ft 8 in

snakes only in this source

Body mass · greatestcomputed
113.6g4 oz

computed from length by a family-level allometric equation, not weighed

How it lives

Dietcomputed
Carnivorous

no actual data but can be imputed as carnivorous like all snakes

How it hunts
Active foraging
Active
Nocturnal

Quah et al. 2021

Where it lives
Arboreal

"Observers who photographed specimens tentatively identified as this species (Fig. 2C–F & 6A) have reported observing the snakes crawling through low vegetation at night. Based on its similarities to other species of Asthenodipsas, it is expected to be a semi-arboreal"

Habitat
Forest
Region
Oriental
Mainland or island
Found only on islands
Elevation · above sea level
1720–1730m

1728 (Quah et al. 2021)

Naming and history

Suborder
Serpentes
Infraorder
Alethinophidia
Subspecies
No
Described by
Quah, Lim, Grismer
Moved to another genus · since it was first described
No
Described in
2021
Type locality
Malaysia

Keeping one

9 ft 5 in × 5 ft 10 in × 9 ft 5 in(286 × 179 × 286 cm)

Minimum length × width × height, for one animal. Bigger is always better.

The standard sizes climbing species at 4 × 2.5 × 4 times snout-vent length.

Lives in vegetation, so height and climbing structure matter more than floor space.

Mindestanforderungen an die Haltung von Reptilien (Sachverständigengutachten), German Federal Ministry for Nutrition, Agriculture and Forestry, Animal Welfare Division, 10 January 1997. The standard states these floor areas are recommendations rather than binding limits.

From this animal’s own snout-vent length of 2 ft 4 in (715 mm), at 4 × 2.5 × 4 times it, following the German federal welfare standard — how this is worked out.

No preferred body temperature has been recorded for Inger’s Slug Snake. Rather than repeat a number from a care sheet, this page leaves it out.

Feeding

A prey item should be no wider than the space between the animal's eyes.

Widely used across reptile husbandry references. The stated reason is that the gap approximates the width of the throat, so wider prey is associated with impaction. This is established practice, not a measurement.

13kJ per day

Worked out for an animal of 114 g, the heaviest recorded for Inger’s Slug Snake — so it is the top of the range, not a figure for a particular animal. Weigh yours and the number will be lower.

An upper estimate, not a feeding target, and not veterinary advice. The equation covers only what an animal burns staying alive, so a growing, gravid or recovering animal needs more — and it was measured on wild animals, which move far more than one in an enclosure. Body condition and a vet who knows the species are what a feeding decision should rest on. Where this comes from.

What nobody knows

These are not gaps in our research. No scientific dataset records them for this species — and saying so is information you cannot get from a reference that simply leaves a field out.

  • Length snout to vent · adult female mean
  • Length snout to vent · adult male mean
  • Length snout to vent · adult mean
  • Female length · mean, nose to tail
  • Length nose to tail · adult male mean
  • Length nose to tail · adult mean
  • Largest female · snout to vent
  • Largest male · snout to vent
  • Largest female · shell length
  • Largest male · shell length
  • Hatchling length · snout to vent
  • Hatchling length · nose to tail
  • Largest juvenile · snout to vent
  • Largest juvenile · shell length
  • Egg length
  • Egg width
  • Body mass · a typical adult
  • Body mass · adult female, mean
  • Body mass at hatching
  • Longest recorded life
  • Preferred body temperature · chosen in a laboratory gradient
  • Body temperature when active · measured in the wild
  • Eats arthropods
  • Eats vertebrates
  • Eats plant matter
  • Reproduction
  • How the young develop
  • Gestation or incubation
  • Average clutch
  • Smallest clutch recorded
  • Largest clutch recorded
  • Mean clutch · smallest reported
  • Mean clutch · largest reported
  • Clutches in a year
  • Clutches a year · fewest
  • Clutches a year · most
  • First breeds from · youngest recorded
  • First breeds by · oldest recorded
  • Hatchling length · smallest recorded
  • Hatchling length · largest recorded
  • Age at first breeding · female
  • Mature from · youngest recorded
  • Mature by · oldest recorded
  • Size at maturity · smallest recorded
  • Size at maturity · largest recorded
  • Venomous
  • Fangs
  • Body temp in the wild · lowest mean recorded
  • Body temp in the wild · highest mean recorded
  • Pupil
  • Sex decided by
  • Conservation status
  • Status assessed · the year the Red List last looked
  • Population trend
  • Red List criteria
  • Biome
  • Active season · shortest recorded
  • Active season · longest recorded
  • Density · lowest recorded
  • Density · highest recorded
  • Home range · largest recorded
  • Active in
  • Range size

Others in Pareidae

Take this data

Everything on this page is available as data under CC BY 4.0 — use it freely, credit it, no permission needed.

This species as JSON · the whole dataset

Cite this page

The Reptile & Amphibian Encyclopedia (2026). Asthenodipsas ingeri. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/asthenodipsas-ingeri

@misc{asthenodipsas_ingeri_2026,
  title  = {Asthenodipsas ingeri},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/asthenodipsas-ingeri}
}

Sources

  1. Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
  2. Catalogue of Life (dataset 3LR), used under CC BY.
  3. Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.