All Angles Creatures
Squamata · DiplodactylidaeEntry 7,989 of 21,572
Bavay's Gecko, Eurydactylodes vieillardi

Reptilia · Squamata

Eurydactylodes vieillardiBavay, 1869

Bavay's Gecko

Photograph by Michael Glaß, CC BY-SA, via Wikimedia Commons

A tree-dwelling, active by day or night, meat-eating gecko from the Australo-Pacific region, reaching 60 mm snout to vent.

ReptiliaSquamataDiplodactylidaeEurydactylodes

Grows to
60.3mm
greatest recorded
Eats
Carnivorous
Active
Cathemeral
Lives
Arboreal
Body length across Diplodactylidae

Longer than only 44% of all species in Diplodactylidae anyone has measured.

44% of 197 species are smaller56% larger
28.8 mmthe whole family, smallest to largest370 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 28.8 to 370 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
Near Threatened
Status assessed · the year the Red List last looked
2017
Population trend
Decreasing
Red List criteria
B1b(iii)

The animal itself

Limbs
Four legs
Venomous
No
Fangs
None

Size

Length snout to vent · greatest recorded
60.3mm2.25 in

max 60.3 mm SVL (Feldman et al. 2016)

Length snout to vent · adult female mean
51mm2 in
Largest female · snout to vent
51mm2 in

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

Hatchling length · snout to vent
24.25mm1 in
Largest juvenile · snout to vent
24.3mm1 in
Body mass · greatestcomputed
4.35g0.15 oz

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

Body mass at hatchingmeasured
0.4g0.01 oz

How it lives

Diet
Carnivorous

Insects / invertebrates (Rodda 2020)

Active
Cathemeral

Nocturnal (possibly also diurnal, Bauer and Sadlier 2000) / primarily diurnal (Bauer et al. 2009) / recorded active by day (Whittaker et al. 2004) / Diurnal (Gamble et al. 2015 - all 4 species in genus diurnal), cathemeral (Rodda 2020)

Where it lives
Arboreal

Arboreal and probably also rarely Terrestrial (Bauer and Sadlier 2000, Bauer et al. 2009)

Habitat
Forest, Shrubland
Biome
Tropical & Subtropical Moist Broadleaf Forests
Region
Australo-Pacific
Mainland or island
Found only on islands
Highest it lives · above sea level
1100m
Range size
12,846km²

Breeding

Reproduction
Oviparous
Average clutch
2eggs
Eggs or young per clutch
2eggs
Mean clutch
2eggs
First breeds at
18months

Naming and history

Suborder
Sauria
Infraorder
Gekkota
Subspecies
No
Described by
Bavay
Moved to another genus · since it was first described
Yes
Described in
1869
Type locality
New Caledonia

Keeping one

9.5 in × 6 in × 9.5 in(24 × 15 × 24 cm)

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

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

Lives in vegetation, so height and climbing structure matter more than floor space.

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

No preferred body temperature has been recorded for Bavay's Gecko. 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 Bavay's Gecko — 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
  • Body mass · adult female, mean
  • 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 it hunts
  • How the young develop
  • Gestation or incubation
  • Clutches in a year
  • Clutches a year · fewest
  • Clutches a year · most
  • 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
  • Colour on the back
  • Pattern on the back
  • Pupil
  • Sex decided by
  • 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 Diplodactylidae

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). Eurydactylodes vieillardi. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/eurydactylodes-vieillardi

@misc{eurydactylodes_vieillardi_2026,
  title  = {Eurydactylodes vieillardi},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/eurydactylodes-vieillardi}
}

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.