Reptilia · Squamata
Mesalina bahaeldiniSegoli, Cohen, Werner, 2002
El Din’s Desert Lizard
Photograph by Telegro, CC BY-SA, via Wikimedia Commons
A ground-dwelling, day-active, meat-eating lizard from the Saharo-Sindian region, reaching 56 mm snout to vent.
Reptilia › Squamata › Lacertidae › Mesalina
- Grows to
- 56mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Diurnal
- Lives up to
- 4.4years
Longer than only 16% of all species in Lacertidae anyone has measured.
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 35 to 444 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
43 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
- 2006
- Population trend
- Stable
The animal itself
- Limbs
- Four legs
- Venomous
- No
- Fangs
- None
- Longest recorded life
- 4.4years
- Body temp in the wild · mean, when active
- 27.7–34.9°C82–95 °F
Amitai and Bouskila 2001: 1, TAUM museum records: 4.4; in autumn adults are just 5% of the population (Orr et al. 1979)
body temperature of active animals in nature
Size
- Length snout to vent · greatest recorded
- 56mm2.25 in
- Length snout to vent · adult female mean
- 42.6mm1.75 in
- Largest female · snout to vent
- 41.3mm1.75 in
- Hatchling length · snout to vent
- 20mm0.8 in
- Largest juvenile · snout to vent
- 22mm0.9 in
- Body mass · greatestcomputed
- 4.13g0.15 oz
- Body mass · adult female, meanmeasured
- 3.6g0.13 oz
- Body mass at hatchingmeasured
- 0.22g0.01 oz
Shai Meiri, unpublished
snout-vent length; the source column mixes this with straight carapace length
computed from length by a family-level allometric equation, not weighed
How it lives
- Diet
- Carnivorous
- How it hunts
- Active foraging
- Active
- Diurnal
- Where it lives
- Terrestrial
- Habitat
- Rocky
- Biome
- Deserts & Xeric Shrublands
- Active season · months of the year
- 8–12months
- Region
- Saharo-Sindian
- Mainland or island
- Mainland
- Highest it lives · above sea level
- 2070m
- Range size
- 647,122km²
- Density
- 125–370per hectare
- Home range · largest recorded
- 9000m2
arthropods (Werner 2016, as guttulata, see details in Orr et al. 1979, Spawls et al. 2023)
pers. obs., Werner et al. 1990
e.g., pers. obs., Spawls et al. 2023
550 (Orr et al. 1979); -266 to 1020 (Shai Meiri, pers. obs), max 2070 (Spawls et al. 2023)
Breeding
- Reproduction
- Oviparous
- Average clutch
- 4.25eggs
- Eggs or young per clutch
- 1–7eggs
- Mean clutch
- 3.5–5eggs
- Clutches a year
- 1–2per year
- First breeds at
- 7–12months
Segoli et al. 2002
2-5 (Segoli et al. 2002), as guttulata: 2-6 (Bar and Haimovitch 2012), 1-6, mean 4.2 (Goldberg 2012), 2-7, mean 4.31, mode 4 (Werner 1995), 2-9, means 4.4-5 (Werner 2016), 2-9, average 5 (Orr et al. 1979), 1-7 (Spawls et al. 2023)
Naming and history
- Suborder
- Sauria
- Infraorder
- Laterata
- Subspecies
- Mesalina bahaeldini bahaeldini SEGOLI, COHEN & WERNER 2002 Mesalina bahaeldini curatorum WERNER & ASHKENAZI 2010
- Described by
- Segoli, Cohen, Werner
- Moved to another genus · since it was first described
- No
- Described in
- 2002
- Type locality
- Egypt
Keeping one
8.75 in × 8.75 in × 5.5 in(22 × 22 × 14 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 2.25 in (56 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 El Din’s Desert Lizard. 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 El Din’s Desert 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 · a typical adult
- — 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
- — Clutches in a year
- — 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 in
- — Lowest it lives · above sea level
Others in Lacertidae
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). Mesalina bahaeldini. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/mesalina-bahaeldini
@misc{mesalina_bahaeldini_2026,
title = {Mesalina bahaeldini},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/mesalina-bahaeldini}
}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.