All Angles Creatures
Squamata · ViperidaeEntry 17,129 of 21,572

Reptilia · Squamata

Protobothrops maolanensisYang, Orlov, Wang, 2011

Mao-lan pitviper

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

A ground-dwelling, nocturnal, meat-eating snake from the Oriental region, reaching 815 mm nose to tail.

ReptiliaSquamataViperidaeProtobothrops

Grows to
815mm
greatest recorded
Eats
Carnivorous
Active
Nocturnal
Lives
Terrestrial
Body length across Viperidae

Longer than only 46% of all vipers anyone has measured.

46% of 362 species are smaller54% larger
280 mmthe whole family, smallest to largest3,900 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 280 to 3,900 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

30 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
Data Deficient
Status assessed · the year the Red List last looked
2011
Population trend
Stable

The animal itself

Limbs
None
Colour on the back
Black, Brown
Pattern on the back
Banded, blotched
Venomous
Yes
Fangs
At the front of the mouth

Size

Length snout to vent · adult female mean
620mm2 ft

805 mm total length (Feldman et al. 2016), Wang et al. 2023 (female standard length [probably total length, unsure] 620 mm), Wang et al. 2023 (max total length 815 mm)

Length nose to tail · greatest recorded
815mm2 ft 8 in

snakes only in this source

Body mass · greatestcomputed
287.4g10.1 oz

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

How it lives

Diet
Carnivorous

rats, frogs (Wang et al. 2023)

How it hunts
Sit and wait

Wang et al. 2023

Active
Nocturnal

Feldman 2015

Where it lives
Terrestrial
Habitat
Forest, Rocky, Shrubland
Biome
Tropical & Subtropical Moist Broadleaf Forests
Region
Oriental
Mainland or island
Mainland
Elevation · above sea level
550–600m

550-600 (Feldman 2015)

Range size
20km²

Breeding

Reproduction
Oviparous

Feldman et al. 2015

Naming and history

Suborder
Serpentes
Infraorder
Alethinophidia
Subspecies
No
Described by
Yang, Orlov, Wang
Moved to another genus · since it was first described
No
Described in
2011
Type locality
China

Keeping one

2 ft 8 in × 16 in × 2 ft(82 × 41 × 61 cm)

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

The standard sizes snakes as a fraction of total length: 1 × 0.5 × 0.75.

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 total length of 2 ft 8 in (815 mm), at 1 × 0.5 × 0.75 times it, following the German federal welfare standard — how this is worked out.

No preferred body temperature has been recorded for Mao-lan pitviper. Rather than repeat a number from a care sheet, this page leaves it out.

Feeding

A prey item should be between the same width as the widest part of the snake's body and about 1.5 times that width.

Widely used across snake husbandry references. An alternative formulation gives prey at 10-15% of the snake's body mass. This is established practice, not a measurement.

30kJ per day

Worked out for an animal of 287 g, the heaviest recorded for Mao-lan pitviper — 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 · greatest recorded
  • 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
  • Body temp in the wild · lowest mean recorded
  • Body temp in the wild · highest mean recorded
  • Pupil
  • Sex decided by
  • Red List criteria
  • Active season · shortest recorded
  • Active season · longest recorded
  • Density · lowest recorded
  • Density · highest recorded
  • Home range · largest recorded
  • Active in

Others in Viperidae

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). Protobothrops maolanensis. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/protobothrops-maolanensis

@misc{protobothrops_maolanensis_2026,
  title  = {Protobothrops maolanensis},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/protobothrops-maolanensis}
}

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.