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Squamata · TropiduridaeEntry 13,127 of 21,572
Galapagos Lava Lizard, Microlophus indefatigabilis

Reptilia · Squamata

Microlophus indefatigabilisBaur, 1890

Galapagos Lava Lizard

Photograph by Diego Delso, CC BY-SA, via Wikimedia Commons

A day-active, omnivorous lizard from the Neotropic region, reaching 115 mm snout to vent.

ReptiliaSquamataTropiduridaeMicrolophus

Grows to
115.3mm
greatest recorded
Eats
Omnivorous
Active
Diurnal
Lives
Arboreal, saxicolous, terrestrial
Body length across Tropiduridae

Longer than 84% of all species in Tropiduridae anyone has measured.

84% of 147 species are smaller16% larger
57 mmthe whole family, smallest to largest177 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 57 to 177 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

36 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
2014
Population trend
Stable

The animal itself

Limbs
Four legs
Venomous
No
Fangs
None
Body temperature when active · measured in the wild
34°C93 °F

mean body temperature of active individuals in nature

Body temp in the wild · mean, when active
31.5–34°C89–93 °F

body temperature of active animals in nature

Size

Length snout to vent · greatest recorded
115.3mm4.5 in

Shai Meiri, unpublished

Length snout to vent · adult female mean
62.6mm2.5 in
Largest female · snout to vent
62.6mm2.5 in

snout-vent length; the source column mixes this with straight carapace length

Body mass · greatestcomputed
52.74g1.9 oz

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

How it lives

Diet
Omnivorous

geckos and conspecifics, and centipedes (Moore et al. 2017), omnivore (Lewbart et al. 2017, "The predominant food item by number was ants, but, numerous other arthropods, berries, flowers, and leaves were consumed. One stomach contained part of a lava lizard tail and another some lava lizard skin." - also juvenile conspecifics), fruit, seeds, flowers, insects and other arthropods and mourning geckos and members of their own species (Artega et al. 2019), omnivore (Labra et al. 2022)

How it hunts
Active foraging

Rowe et al. 2019

Active
Diurnal

Clark et L. 2015, Artega et al. 2019

Where it lives
Arboreal, saxicolous, terrestrial

Saxicolous (Stone et al. 2003 - as all that were considered conspecifics), mostly on rocks, also soil, leaf litter, shrubs cacti and walls up to 2.5 m (Artega et al. 2019)

Habitat
Forest, Rocky, Shrubland
Biome
Deserts & Xeric Shrublands
Region
Neotropic
Mainland or island
Found only on islands
Highest it lives · above sea level
10m

9 (Rowe et al. 2019)

Range size
1036km²
Density
62–532per hectare
Home range · largest recorded
1377m2

Breeding

Reproduction
Oviparous

reptile database

Average clutch
2.33eggs
Eggs or young per clutch
1–6eggs

2-3, mean 2.33 (Carpenter 1970, n=3), 1-6 (Artega et al. 2019)

Mean clutch
2.33eggs

Naming and history

Suborder
Sauria
Infraorder
Pleurodonta
Subspecies
No
Described by
Baur
Moved to another genus · since it was first described
Yes
Described in
1890
Type locality
Ecuador

Keeping one

18 in × 18 in × 18 in(46 × 46 × 46 cm)

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

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

Recorded both on the ground and climbing, so this is the larger of the two rules in every dimension.

Lives on rock, so stable hard surfaces and basking ledges suit it.

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 4.5 in (115.3 mm), at 4 × 4 × 4 times it, following the German federal welfare standard — how this is worked out.

Active animals measured in the wild averaged 93 °F (34 °C).

Mean body temperature of active individuals measured in nature. 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.

7kJ per day

Worked out for an animal of 53 g, the heaviest recorded for Galapagos Lava 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 · 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
  • Eats arthropods
  • Eats vertebrates
  • Eats plant matter
  • How the young develop
  • Gestation or incubation
  • 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
  • Colour on the back
  • Pattern on the back
  • Pupil
  • Sex decided by
  • Red List criteria
  • Active season · shortest recorded
  • Active season · longest recorded
  • Active in
  • Lowest it lives · above sea level

Others in Tropiduridae

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). Microlophus indefatigabilis. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/microlophus-indefatigabilis

@misc{microlophus_indefatigabilis_2026,
  title  = {Microlophus indefatigabilis},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/microlophus-indefatigabilis}
}

Sources

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