Reptilia · Squamata
Blanus cinereusVandelli, 1797
Mediterranean Worm Lizard
Photograph by Julien Tchilinguirian, CC BY, via iNaturalist
A burrowing, active by day or night, meat-eating lizard from the Palearctic region, reaching 254 mm snout to vent.
Once published as Blanus mariae — those names reach this page.
Reptilia › Squamata › Blanidae › Blanus
- Grows to
- 254mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Cathemeral
- Lives up to
- 16years
What is known
40 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
- Status assessed · the year the Red List last looked
- 2008
- Population trend
- Stable
The animal itself
- Limbs
- None
- Venomous
- No
- Fangs
- None
- Longest recorded life
- 16years
- Preferred body temperature · chosen in a laboratory gradientmeasured
- 20.7°C
- Body temperature when active · measured in the wild
- 22.8°C73 °F
- Body temp in the wild · mean, when active
- 22–23.6°C72–74 °F
Carey and Judge 2000, De Magalhaes & Costa 2009, Slavens and Slavens 1999: 16; Snider and Bowler 1992: 5 years, 2 months
mean body temperature of active individuals in nature
body temperature of active animals in nature
Size
- Length snout to vent · greatest recorded
- 254mm10 in
- Length snout to vent · adult female mean
- 159mm6.25 in
- Largest female · snout to vent
- 159mm6.25 in
- Hatchling length · snout to vent
- 79mm3 in
- Largest juvenile · snout to vent
- 78mm3 in
- Body mass · greatestcomputed
- 16.57g0.58 oz
- Body mass · a typical adult
- 6g0.21 oz
max 254 mm SVL (Feldman et al. 2016)
snout-vent length; the source column mixes this with straight carapace length
computed from length by a family-level allometric equation, not weighed
AnAge rates this record "acceptable"
How it lives
- Diet
- Carnivorous
- How it hunts
- Active foraging
- Active
- Cathemeral
- Where it lives
- Fossorial
- Habitat
- Forest, Grassland, Shrubland
- Biome
- Mediterranean
- Region
- Palearctic
- Mainland or island
- Mainland
- Highest it lives · above sea level
- 2000m
- Range size
- 47,115km²
arthropods and fungi (Kearney 2003) / Arthropods (Gil et al. 1993, Kwet 2009) / invertebrates (Lopez 2009)
Banfi et al. 2023
Busack 1978
max 1800 (Kwet 2015)
Breeding
- Reproduction
- Oviparous
- Average clutch
- 2eggs
- Eggs or young per clutch
- 1–3eggs
- Clutches in a year
- 1per year
- Clutches a year
- 1per year
1-2 (Maso and Pijoan 2011), 1-3 (Kwet 2015), Gil 1994: "Mean number of vitellogenetic follicles was 3 (SE = 1.46, range = 2-7, n = 12).", one female with eggs (2 eggs)
Naming and history
- Suborder
- Amphisbaenia
- Infraorder
- Amphisbaenia (Laterata)
- Subspecies
- No
- Described by
- Vandelli
- Moved to another genus · since it was first described
- Yes
- Described in
- 1797
- Type locality
- Portugal
Keeping one
3 ft 4 in × 3 ft 4 in × 2 ft 1 in(102 × 102 × 64 cm)
Minimum length × width × height, for one animal. Bigger is always better. Substrate at least 5 in (13 cm) deep.
The standard sizes ground-dwelling species at 4 × 4 × 2.5 times snout-vent length.
Burrows, so substrate deep enough to dig in matters as much as floor area.
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 10 in (254 mm), at 4 × 4 × 2.5 times it, following the German federal welfare standard — how this is worked out.
In a laboratory thermal gradient this species settled at 69 °F (20.7 °C).
Preferred body temperature, recorded in a laboratory gradient where the animal could choose freely. A measurement of the animal, not a setting for a thermostat.
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.
2kJ per day
Worked out for an animal of 17 g, the heaviest recorded for Mediterranean Worm Lizard — 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 male mean
- — Length snout to vent · adult mean
- — Length nose to tail · greatest recorded
- — Female length · mean, nose to tail
- — Length nose to tail · adult male mean
- — Length nose to tail · adult mean
- — Largest male · snout to vent
- — Largest female · shell length
- — Largest male · shell length
- — Hatchling length · nose to tail
- — Largest juvenile · shell length
- — Egg length
- — Egg width
- — Body mass · adult female, mean
- — Body mass at hatching
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How the young develop
- — Gestation or incubation
- — Mean clutch · smallest reported
- — Mean clutch · largest reported
- — 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
- — Colour on the back
- — Pattern on the back
- — 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
- — Lowest it lives · above sea level
Others in Blanidae
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). Blanus cinereus. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/blanus-cinereus
@misc{blanus_cinereus_2026,
title = {Blanus cinereus},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/blanus-cinereus}
}Sources
- Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
- Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.
- Catalogue of Life (dataset 3LR), used under CC BY.
- AnAge, Human Ageing Genomic Resources (de Magalhães et al.), used under CC BY 3.0.