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Squamata · XenodermidaeEntry 175 of 21,572

Reptilia · Squamata

Achalinus panzhihuaensisHou, Wang, Guo, Chen, Yuan, Che, 2021

Panzhihua Odd-scaled Snake

No photograph of this species exists under a license anyone may reuse. It gets the same page regardless.

A ground-dwelling, nocturnal, meat-eating lizard from the Oriental region, reaching 258 mm nose to tail.

ReptiliaSquamataXenodermidaeAchalinus

Grows to
258mm
greatest recorded
Eats
Carnivorous
Active
Nocturnal
Lives
Terrestrial
Body length across Xenodermidae

Longer than only 3% of all species in Xenodermidae anyone has measured.

3% of 35 species are smaller97% larger
177.9 mmthe whole family, smallest to largest870 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 177.9 to 870 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

26 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
Conservation status
Least Concern

The animal itself

Limbs
None
Colour on the back
Black, Brown
Pattern on the back
Banded
Pupil
Round
Fangs
At the back of the mouth

Size

Length snout to vent · greatest recorded
194mm7.75 in

Hou et al. 2021b (257 mm total length, 194 mm SVL male holotype, cited as 258 mm total length, 194 mm SVL in Ha et al. 2022), Wang et al. 2023 (max total length 258 mm)

Length nose to tail · greatest recorded
258mm10 in

snakes only in this source

Body mass · greatestcomputed
3.98g0.14 oz

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

How it lives

Diet
Carnivorous

earthworms (Wang et al. 2023)

How it hunts
Active foraging

Wang et al. 2023

Active
Nocturnal

The holotype was found on a montane road at night (Hou et al. 2021b)

Where it lives
Terrestrial
Habitat
Forest, Grassland, Rocky
Region
Oriental
Mainland or island
Mainland
Elevation · above sea level
1200–2000m

Breeding

Reproduction
Oviparous

Naming and history

Suborder
Serpentes
Infraorder
Alethinophidia
Subspecies
No
Described by
Hou, Wang, Guo, Chen, Yuan, Che
Moved to another genus · since it was first described
No
Described in
2021
Type locality
China

Keeping one

2 ft 7 in × 2 ft 7 in × 19 in(78 × 78 × 49 cm)

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

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

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 7.75 in (194 mm), at 4 × 4 × 2.5 times it, following the German federal welfare standard — how this is worked out.

No preferred body temperature has been recorded for Panzhihua Odd-scaled 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.

1kJ per day

Worked out for an animal of 4 g, the heaviest recorded for Panzhihua Odd-scaled 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
  • 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
  • Body temp in the wild · lowest mean recorded
  • Body temp in the wild · highest mean recorded
  • Sex decided by
  • 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 Xenodermidae

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). Achalinus panzhihuaensis. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/achalinus-panzhihuaensis

@misc{achalinus_panzhihuaensis_2026,
  title  = {Achalinus panzhihuaensis},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/achalinus-panzhihuaensis}
}

Sources

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